Poisson Regression Analysis Research Articles

Endometriosis of the appendix: prevalence, associated lesions, and proposal of pathogenetic hypotheses. A retrospective cohort study with prospectively collected data.

To assess the prevalence of endometriosis of the appendix and the association with other pelvic localizations of the disease and to provide pathogenesis hypotheses. Monocentric, observational, retrospective, cohort study. Patients undergoing laparoscopic endometriosis surgery in our tertiary referral center were consecutively enrolled. The prevalence of the different localizations of pelvic endometriosis including appendix involvement detected during surgery was collected. Included patients were divided into two groups based on the presence of appendiceal endometriosis. Women with a history of appendectomy were excluded. Four hundred-sixty patients were included for data analysis. The prevalence of appendiceal endometriosis was 2.8%. In patients affected by endometriosis of the appendix, concomitant ovarian and/or bladder endometriosis were more frequently encountered, with prevalence of 53.9% (vs 21.0% in non-appendiceal endometriosis group, p = 0.005) and 38.4% (vs 11.4%, p = 0.003), respectively. Isolated ovarian endometriosis was significantly associated to appendiceal disease compared to isolated uterosacral ligament (USL) endometriosis or USL and ovarian endometriosis combined (46.2% vs 15.4% vs 7.7%, p < 0.001). Poisson regression analysis revealed a 4.1-fold and 4.4-fold higher risk of ovarian and bladder endometriosis, respectively, and a 0.1-fold risk of concomitant USL endometriosis in patients with appendiceal involvement. Involvement of the appendix is not uncommon among patients undergoing endometriosis surgery. Significant association was detected between appendiceal, ovarian, and bladder endometriosis that may be explained by disease dissemination coming from endometrioma fluid shedding. Given the prevalence of appendiceal involvement, counseling regarding the potential need for appendectomy during endometriosis surgery should be considered.

Mammary gland, skin and soft tissue tumors in pet cats: findings of the feline tumors collected from 2002 to 2022.

Cancer is a leading cause of death in cats, and the rate of such disease has been increasing recently. Nonetheless, feline oncology represents an important area of study not only for the health and wellbeing of cats but also for human health since various types of cancer in cats share similarities to those found in humans. Therefore, epidemiological studies on feline oncology may suggest environmental and genetic factors contributing to cancer in cats, which can eventually be translated to improve human cancer care. To provide an initial understanding of the epidemiology of feline neoplasms, a descriptive study was undertaken using a dataset documenting cases of feline cancer gathered from the Liguria region (northwest Italy) spanning from 2002 to 2022. The database includes tumor location, morphological codes of the International Classification of Diseases for Oncology, 3rd Edition (ICD-O-3), feline's breed, sex, neuter status, date of birth, date of diagnosis, national territorial unit code of the town of the owner's residence, and an alphanumeric string uniquely identifying the owner's surname. The dataset involves a population of 4,399 cats, including 3,195 females (1,425 neutered) and 1,204 males (750 neutered). Our results indicate that mammary gland tumors are the most represented tumors in the female population, while soft tissue and skin cancers appear to have a higher abundance in the male population during the periods investigated (2002-2022). Moreover, Poisson regression analysis showed that not neutered female cats have a significantly increased risk of developing mammary gland tumors compared to the neutered female population [proportional morbidity ratio (PMR) neutered vs. not neutered = 0.58, 95% CI: 0.47-0.72]; meanwhile, for both sexes, for soft tissue and skin tumors, being neutered appears to be a risk factor (PMR neutered vs. not neutered = 2.26, 95% CI: 1.86-2.73; PMR neutered vs. not neutered = 1.16, 95% CI: 0.89-1.51). Finally, the evaluation of the Ligurian municipalities pollution, based on wild boars data (i.e., biomonitors), which coexisted with cats, was correlated to cancer development for all the tumors investigated (in polluted areas, estimated PMRs ranged from 42.61 to 80.13, 95% CI: 29.94-105.11). Overall, the data presented here suggest the use of the feline population as a possible animal model for human health, i.e., sentinel.

Comparison of novel and traditional anthropometric indices in Eastern-China adults: which is the best indicator of the metabolically obese normal weight phenotype?

BackgroundPeople with the metabolically obese normal weight (MONW) phenotype have been confirmed to significantly increase the risk of unfavorable health consequences. This study aimed to investigate the relationships between traditional and novel anthropometric indices with the MONW phenotype and compare the predictive ability of different anthropometric indices in identifying individuals with the MONW phenotype.MethodsThis cross-sectional study involved a total of 26,332 participants aged 18 years or older with a normal weight from Nanjing, China. Sociodemographic information, biochemical measurements, and anthropometric indices were collected. The novel body fat anthropometric indices included body shape index (ABSI), body roundness index (BRI), abdominal volume index (AVI), weight-adjusted-waist index (WWI), body adiposity index (BAI), conicity index (CI), waist-hip-height ratio (WHHR), as well as traditional indices such as waist circumference (WC), hip circumference (HC), body mass index (BMI), waist-to-hip ratio (WHR), and waist-to-height ratio (WHtR).The prevalence ratio (PR) from modified poisson regression and area under the receiver-operating characteristic curve (AUC) were conducted to compare the association and predictive capacity of different obesity indicators for the MONW phenotype. All analyses were stratified by sex.ResultsModified poisson regression analyses revealed that weight, WC, HC, BMI, WHR, WHtR, ABSI, BRI, AVI, WWI, BAI, CI, and WHHR were independently associated with higher risk of the MONW phenotype, regardless of whether they were treated as a continuous or categorical variable (P < 0.05). Notably, BRI demonstrated the strongest association in both men (highest quartile VS lowest quartile; PR = 3.14, 95%CI, 2.49, 3.96; P < 0.001) and women (PR = 4.63, 95%CI, 3.81, 5.62; P < 0.001). Receiver operating characteristic analysis indicated that AUC for the different anthropometric indices ranged from 0.50 to 0.80. BRI and WHtR had the largest AUC in both males (both AUC = 0.733; 95% CI, 0.717, 0.750) and females (both AUC = 0.773; 95% CI, 0.761, 0.786). The optimal cut-off points for BRI, determined by maximizing the Youden’s index, were 3.102 (sensitivity: 63.2%, specificity: 36.2%) in males and 3.136 (sensitivity: 68.9%, specificity: 44.2%) in females. Moreover, BRI and WHtR exhibited the highest diagnostic accuracy in younger age groups, specifically those aged 18–34 in both sexes.ConclusionsBRI emerged as the optimal predictor and independent determinant of the MONW phenotype, regardless of gender. This association was particularly pronounced in young individuals.

Beyond the surface: exploring contributing factors to bone anchored hearing implant complications.

Bone anchored hearing implants (BAHI) are considered for conductive and mixed hearing loss, relying on osseointegration of a titanium implant. Limitations relate to constant skin contact, with resultant percutaneous infections and granulation. This study investigates whether patient characteristics and implant-specifications contribute to BAHIs' skin complications in a cohort with a uniform surgical approach. A 10year (2014-2024) retrospective cohort study was conducted on BAHI procedures that were undertaken using a tissue-preserving 'punch' technique. Data on patient demographics, co-morbidities, implant type, surgical approach, and complications were collected. Poisson regression analysis was used to identify predictors of complications. A total of 53 patients undergoing 55 BAHI surgeries by three ENT consultants were included. Factors that greatly increased implant-related percutaneous infections included the Cochlear™ BIA400 implant when compared to the Ponto™ BHX implant (twofold, CI 2.03-2.16), abutment sizes ≤ 10mm (fourfold, CI 3.99-4.12) and male gender (9%, CI 1.07-1.12). Granulation episodes were affected by cardiovascular disease (CVD) status (1.5-fold, CI 0.26-0.78), BIA400 implant (threefold, CI 8.8.-9.2) and abutment sizes ≤ 10mm (fourfold, CI 3.6-3.73). Revision surgery episodes increased with diabetic status (1.2-fold, CI 0.06-0.37) and abutment sizes ≤ 10mm (threefold, 3.303-3.304). Larger cohort studies are required to confirm findings, particularly for implant and abutment size contributions. However, the findings suggest that using a larger abutment size when skin thickness meassuremets are borderline, improved hygiene education in male patients, pre-operative optimisation of CVD and diabetes, and adjusted patient follow-up based on risk stratification of the contributing factors to complication rates could reduce complication rates.

Prevalence, patterns, and factors associated with abnormal lung function among children with sickle cell disease in Uganda: a cross-sectional study

BackgroundPulmonary complications are common among children with sickle cell disease (SCD). However, there is little literature on associated lung function abnormalities in Uganda. We aimed to determine the prevalence, patterns, and factors associated with abnormal lung function among children with SCD in a tertiary care hospital in Uganda.MethodA cross-sectional study was conducted among children aged 6 to 18 years at the SCD clinic (SCC) of Mulago National Super-Specialized Hospital between January 2020 and April 2021. Data on sociodemographic and clinical characteristics was collected using a standardized questionnaire. Laboratory investigations, including a complete blood count and serum lactate dehydrogenase (LDH), were done. Spirometry was performed following the ATS/ERS standards. Multivariable modified Poisson regression analysis was performed to determine factors associated with abnormal lung function.ResultsA total of 332 participants were enrolled. The mean age was 11.7 ± 3.4 years, and 184 (55.4%) were female. Overall, 126 (37.9%) participants had abnormal lung function: 67/126 (53.2%) restrictive, 57/126 (45.2%) obstructive, and 2/126 (1.6%) mixed-ventilatory patterns. Factors associated with abnormal lung function were; serum LDH level > 600UL (aIRR: 1.89 95% CI: 1.2 — 7.4, p = 0.049), a history of acute chest syndrome (aIRR: 1.55, 95% CI: 1.06–2.25, p = 0.024), wasting (aIRR: 1.33, 95%CI: 1.02 — 1.72, p = 0.032), and use of charcoal for household cooking (aIRR: 1.49, 95% CI: 1.03–2.15, p = 0.035).ConclusionMore than one-third of children with SCD in Uganda have lung function abnormalities. Strategies to improve nutrition, reduce exposure to charcoal smoke, and monitoring serum LDH levels may be important in preventing or managing abnormal lung function in this population. The identification of reversible and irreversible airway obstruction in children with sickle cell disease also highlights the need for targeted interventions to address these specific patterns of abnormal lung function.

Willingness to Use Long-acting Injectable Pre-exposure Prophylaxis Among Key Populations at a Large Hiv Prevention Clinic in Kampala, Uganda: a Cross-sectional Study.

Long-acting injectable (LAI)-PrEP provides better protection against HIV compared to oral PrEP, which requires taking a daily pill. Our study aimed to assess knowledge about oral and LAI-PrEP and identify factors associated with willingness to use LAI-PrEP among key populations (KP) in Uganda. We conducted a cross-sectional study at the Most at Risk Populations Initiative (MARPI) clinic between November and December 2021. Participants were recruited through convenience sampling and interviewed using a structured questionnaire by trained interviewers. Participants were categorised into three groups based on their oral PrEP use: those who had not yet initiated PrEP, those who had discontinued oral PrEP, and those currently on oral PrEP. Modified Poisson regression analysis was performed to determine factors associated with the participant's willingness to use LAI-PrEP. Data was analysed using STATA 14 software. Of the 234 participants, 135 (56.7%) were female, 82.5% knew about LAI-PrEP, and 67.5% were willing to use it. The mean age was 28.7 years (standard deviation [SD] 5.8). Willingness to use LAI-PrEP was less likely among divorced, widowed, or separated individuals than those in relationships (adjusted prevalence ratio [aPR] 0.65, 95% CI: 0.43-0.98). Relative to current oral PrEP users, willingness to use LAI-PrEP was similar among those who discontinued oral PrEP (aPR 1.39, 95% CI: 0.92-2.11) and those who had not yet initiated PrEP but were at risk for HIV (aPR 1.26, 95% CI: 0.83-1.89). In this cross-sectional analysis of diverse members of key populations in Uganda, previous or non-use of oral PrEP was not associated with willingness to use LAI-PrEP relative to current users. Future studies should investigate effective methods for promoting the uptake of long-acting PrEP formulations among populations at high risk of HIV acquisition.

Population-Based Incidence and Clinical Characteristics of Ocular Adnexal Tumors in Olmsted County, Minnesota

ABSTRACT Purpose To determine the incidence and clinical characteristics of ocular adnexaltumors in Olmsted County, Minnesota. Methods Retrospective population-based cohort study of all patients residing in Olmsted County, Minnesota diagnosed with any ocular tumor from January 1, 2006, to December 31, 2015. The medical records of all patients with an incident diagnosis of any ocular adnexal tumor were reviewed using the Rochester Epidemiology Project medical record linkage system for patient demographics, tumor type, and histopathologic confirmation. Incidence rates were calculated per 100,000 person-years. Poisson regression analysis was used to analyze changes in incidence over time. Results There were 717 patients diagnosed with ocular adnexal tumors during the 10-year study period, yielding an age- and sex-adjusted incidence rate of 59.7 per 100,000 (95% CI 55.4 to 64.0, p < 0.05) per year. In total, 764 tumors were diagnosed. Most tumors were eyelid lesions (N = 756, 99.0%), which were mostly benign (N = 512, 67.8%) with epidermal inclusion cysts (N = 275, 36.0%), hidrocystoma (N = 70, 9.2%), and eyelid sebaceous cysts (N = 46, 6.1%) accounting for the majority. Malignant eyelid lesions (N = 244, 31.9%) were relatively common with basal cell carcinoma (N = 184, 24.1%) and squamous cell carcinoma (N = 49, 6.4%) having the highest frequencies. Orbital tumors (N = 8, 1.0%) were infrequent. Of the orbital tumors, the most common was lacrimal gland adenoidcystic carcinoma (N = 2, 25.0%). Conclusions In a population-based setting, most ocular adnexal tumors were benign eyelid lesions. Understanding the epidemiology of ocular adnexal tumors is important to aid providers in diagnosing and facilitating appropriate referrals of potentially vision- and life-threatening malignancies.

Elevated middle cerebral artery peak systolic velocity and risk of death in donor twin affected by twin-twin transfusion syndrome but not twin anemia-polycythemia sequence.

To determine the association between elevated (> 1.5 multiples of the median (MoM)) middle cerebral artery (MCA) peak systolic velocity (PSV) and fetal demise of the donor twin in pregnancies complicated by twin-twin transfusion syndrome (TTTS) in the absence of twin anemia-polycythemia sequence (TAPS). Secondary objectives were to evaluate if donor or recipient MCA-PSV is associated with a risk for their corresponding fetal death, and to compare the proportion of donor fetuses with low MCA pulsatility index (PI) among donor twins with high MCA-PSV and those with normal MCA-PSV to evaluate the contribution of blood-flow redistribution to the fetal brain in donor twins with high MCA-PSV. This prospective cohort study included TTTS cases that underwent laser surgery between 2011 and 2022 at a single center. TAPS cases were excluded from the study. Multivariable and Poisson regression analysis were performed to explore the association between isolated elevated donor MCA-PSV and fetal demise, adjusted for TTTS stage, selective fetal growth restriction (sFGR) and other confounders. Of 660 TTTS cases, donor MCA-PSV was not recorded in 48 (7.3%) cases. Of the remaining 612 patients, nine (1.5%) were lost to follow-up and 96 TAPS cases were excluded; thus, 507 cases were included in the study. High donor MCA-PSV was seen in 6.5% (33/507) of cases and was an independent risk factor for donor fetal demise (adjusted relative risk (aRR), 4.52 (95% CI, 2.72-7.50)), after adjusting for confounders. Regression analysis restricted to each Quintero TTTS stage demonstrated that high donor MCA-PSV was an independent risk factor for fetal demise of the donor in Quintero Stage II (aRR, 14.21 (95% CI, 1.09-186.2)) and Quintero Stage III (aRR, 3.41 (95% CI, 1.82-6.41)). Donor MCA-PSV in MoM was associated with fetal demise of the donor (area under the receiver-operating-characteristics curve (AUC), 0.69; P < 0.001), but recipient MCA-PSV in MoM was not associated with fetal demise of the recipient (AUC, 0.54; P = 0.44). A higher proportion of donor twins in the group with high MCA-PSV had a low MCA-PI compared to the group with normal MCA-PSV (33.3% vs 15.5%; P = 0.016). Elevated donor MCA-PSV without TAPS prior to laser surgery for TTTS is associated with a 4-fold increased risk for donor fetal demise, adjusted for sFGR, TTTS stage and other confounders. Doppler evaluation of donor MCA-PSV prior to laser surgery may help stratify TTTS staging to evaluate the risk of donor fetal demise. © 2024 International Society of Ultrasound in Obstetrics and Gynecology.

Early contraceptive implant removal and associated factors among women attending public family planning clinics, Mbarara City, Southwestern Uganda: a cross-sectional study

BackgroundEarly implant removal not only results in method wastage and strains healthcare resources but also exposes women to the risk of unplanned pregnancies and associated complications if an alternative contraceptive is not promptly adopted. Studies have demonstrated that prevalence and factors associated with contraceptive use vary across different cultures and regions even within Uganda. We determined the prevalence and associated factors of early implant removal, among women attending public family planning clinics in Mbarara City, southwestern Uganda.MethodsWe conducted a cross-sectional study from April to July 2023 at four public family planning clinics in Mbarara City. We consecutively enrolled women and administered a questionnaire to obtain data on demographic, and medical characteristics. We defined early removal as implant discontinuation within a period < 2 years. We excluded women who did not have a written record of the date of insertion of the contraceptive implants. We used modified Poisson regression analysis to determine factors associated with early implant removal.ResultsWe enrolled 406 women, with a mean age of 29 ± 6 years. The prevalence of early contraceptive implant removal was 53% (n = 210; 95%, CI: 48-58%). Factors associated with early implant removal were experiencing side effects (adjusted prevalence ratio [aPR] = 1.63, 95% CI: 1.20–2.21), inserting an implant to achieve career goals (aPR = 1.88, 95% CI: 1.26–2.81) and intending to use the implant for < 24 months (aPR = 1.36, 95% CI: 1.11–1.66).ConclusionApproximately half of the surveyed women removed their contraceptive implant early. Women who experienced side effects, chose an implant due to career obligations and those whose intended implant use was < 2 years were more likely to have an early contraceptive implant removal compared to their counterparts. We recommend strengthening of pre- and post- insertion counselling to address concerns among those who may experience side-effects. Women who intend to use implants for < 2 years and those who have career obligations should be encouraged to use short-acting methods as an option.

Epidemiologic Trends in Maxillofacial Trauma Surgery in Germany-Insights from the National DRG Database 2005-2022.

Background: Maxillofacial trauma (MFT) caused by falls, interpersonal violence or traffic accidents leading to fractures of different facial regions, including the midface and the mandible, are common clinical conditions requiring open reduction and internal fixation. The aim of this study was to analyze the incidence and time trends in MFT-associated surgeries regarding different facial regions in the German healthcare system over time. Materials and methods: Nationwide data regarding the national diagnosis-related group (DRG) inpatient billing system was received from the German Federal Statistical Office for the years 2005-2022. We estimated the age-gender standardized incidence of MFT-associated procedures classified by the Operation and Procedure Classification System (OPS) and evaluated age- and gender-adjusted time trends using Poisson regression analysis. Results: The total standardized incidence rate of MFT-associated procedures in the observational period 2005-2022 was 25.1 (♀13.3; ♂37.5) per 100,000 person-years within a slight significant annual decrease of 0.5%. A significant increase in the incidence of MFT-related procedures within the observational period was found in older adults from 60 to 79 years (+55.1%; ♀+54.8%; ♂+56.3%) and elderly patients over 80 years (+66.7%; ♀+59.1%; ♂+85.1%). Other significant trends are decreases in MFT-related procedures performed in children from 0-14 years (-28.1%; ♀-30.3%; ♂-27.3%) and young adults between 15 and 35 years (-20.4%; ♀-7.3%; ♂-22.5%). Conclusions: MFT-associated surgery is a persisting challenge in the German healthcare system. There is an ongoing transition in MFT-associated surgeries from younger to older patients beyond the scope of demographic change, highlighting the increasing importance of interdisciplinary treatment of patients with pre-existing conditions in maxillofacial surgery. Implementation of injury prevention measures might be beneficial in this population.

The impact of age-related differences in emotion dysregulation on refugee mental health and social outcomes.

The refugee experience is typically characterized by exposure to numerous premigration traumatic events and postmigration stress in the resettlement environment. Refugees' experiences can lead to elevated rates of psychopathology, including posttraumatic stress disorder (PTSD) and depression. Emotion regulation is a key mechanism contributing to mental health outcomes among refugees. This study examined the impact of age on the association between emotion regulation and critical social outcomes relevant to refugee resettlement, such as social engagement and functional impairment. Participants were 1,081 Arabic-, Farsi-, Tamil- and English-speaking adult refugees. Premigration trauma exposure, postmigration stressors, PTSD symptoms, depressive symptoms, emotion regulation, social engagement, and functional impairment were measured. A series of hierarchical regression and Poisson regression analyses revealed emotion dysregulation as a significant predictor of functional impairment, β =.36, p <.001, and social engagement, Exp B = 0.99, p =.002. A significant interaction between age and emotion dysregulation was associated with both PTSD, β =.05, p =.048 and depressive symptoms, β =.06, p =.010, suggesting a stronger positive association between emotion dysregulation and both PTSD and depressive symptom severity for older individuals. Postmigration stressor exposure, emotion dysregulation, and older age are important factors that may negatively impact social engagement and functional impairment in the resettlement environment. Additionally, higher levels of trauma exposure may negatively impact social engagement. These findings have implications for public health and social services in the context of resettled refugee communities.

Trend, disparities, and projection analysis of public data on foot fractures in Sweden: a retrospective analysis of 179 129 fractures

IntroductionOrthopedic injuries to the foot constitute a significant portion of lower extremity injuries, necessitating an understanding of trends for effective preventive strategies and resource allocation. Demographic shifts, improved traffic safety, and lifelong physical activity may alter incidence rates, trauma mechanisms, and fracture distribution. This study explores the prevalence of foot fractures in Sweden using publicly available data.MethodsUtilizing data from the Swedish National Board of Health and Welfare (SNBHW) spanning 2008–2022, retrospective study focuses on foot fractures in Sweden. Analysis includes calculating annual incidence rates per 100,000 person-years, assessing temporal trends, and exploring seasonal variations. Poisson regression analysis was used for projections into 2035.ResultsBetween 2008–2022, the average annual foot fracture incidence was 11,942, with notable fluctuations influenced by the COVID-19 pandemic. Age and sex disparities impact rates, and seasonal variance highlights increased incidence in summer. By 2035, foot fractures will decreasae amongst several demographic groups.ConclusionThis study provides insights into temporal trends, sex differences, and seasonal variations foot fracture patterns in Sweden. The identified trends suggest the utilization of targeted preventive strategies, efficient resource allocation, and informed healthcare planning. Despite limitations, this research offers valuable insights into foot fractures within the Swedish population, utilizing publicly aggregated data.

Associations of Resilience, Perceived Control of Health, and Depression with Geriatric Outcomes after Surgery.

To identify if depression, resilience, and perceived control of health are related to 2.5-year mortality and instrumental activities of daily living (IADL) decline among older adults after surgery. The relationships of psychosocial factors with postoperative mortality and IADL decline among older adults are understudied. We identified 3778 community-dwelling older adults in the Health and Retirement Study (HRS) with Medicare claims for surgery (mean [SD] age: 75.4 [7.8] years, 53.9% women, and 86.0% non-Hispanic White). We assessed associations of depression, resilience, and perceived control of health with 2.5-year postoperative mortality and IADL decline using cox and modified Poisson regression analyses, adjusting for sociodemographic and health variables. The incidence of 2.5-year postoperative mortality was 18.5% and IADL decline was 9.4%. Depression was associated with a higher incidence and adjusted hazard [95% CI] of mortality (26% vs. 16%, aHR:1.2[0.9, 1.5]), but high resilience was associated with a lower incidence and adjusted hazard of mortality (9% vs. 21%, aHR:0.6[0.5, 0.8]). Those with depression had higher incidence and adjusted relative risk [95% CI] of IADL decline (17% vs. 7%, aRR:1.6[1.2, 2.2]), but lower incidence and adjusted relative risk of IADL decline was identified for those with high resilience (4% vs. 11%, aRR:0.6[0.4, 1.0]) and high perceived control of health (7% vs. 10%, aRR:0.6[0.4, 1.0]). While depression confers greater risk of mortality and IADL decline, higher resilience and perceived control of health may be protective. Addressing psychosocial factors in the peri-operative period may improve outcomes among older adults.

Identifying Variation in Intraoperative Management of Brain-Dead Organ Donors and Opportunities for Improvement: A Multicenter Perioperative Outcomes Group Analysis.

Intraoperative events and clinical management of deceased organ donors after brain death are poorly characterized and may consequently vary between hospitals and organ procurement organization (OPO) regions. In a multicenter cohort, we sought to estimate the incidence of hypotension and anesthetic and nonanesthetic medication use during organ recovery procedures. We used data from electronic anesthetic records generated during organ recovery procedures from brain-dead adults across a Multicenter Perioperative Outcomes Group (MPOG) cohort of 14 US hospitals and 4 OPO regions (2014-2020). Hypotension, defined as mean arterial pressure or MAP <60 mm Hg for at least 10 cumulative minutes was the primary outcome of interest. The associations between hypotension and age, sex, race, anesthesia time, OPOs, and OPO case volume were examined using multivariable mixed-effects Poisson regression analyses with robust standard error estimates. We calculated intraclass correlation coefficients (ICCs) to describe the variation between-MPOG centers and the OPO regions in the use of medications, time of the operation, and duration of the operation. We examined 1338 brain-dead adult donors, with a mean age of 42± (standard deviation [SD] 15) years; 60% (n = 801) were males and 67% (n = 891) non-Hispanic White. During the entire intraoperative monitoring period, 321 donors (24%, 95% confidence interval [CI], 22%-26%) had hypotension for a median of 13.8% [quartile1-quartile 3: 9.4%-21%] of the monitoring period and a minimum of 10 minutes to a maximum of 96 minutes [(median: 17, quartile1-quartile 3: 12-24]). The probability having hypotension in donors 35 to 64 years and 65 years and older were approximately 30% less than in donors 18 to 34 years of age (adjusted relative risk ratios, aRR, 0.68, 95% CI, 0.55-0.82, aRR, 0.63, 95% CI, 0.42-0.94, respectively). Donors received intravenous heparin (96.4%, n = 1291), neuromuscular blockers (89.5%, n = 1198), vasoactive medications (82.7%, n = 1108), crystalloids (76.2%, n = 1020), halogenated anesthetic gases (63.5%, n = 850), diuretics (43.8%, n = 587), steroids (16.7%, n = 224), and opioids (23.2%, n = 310). The largest practice heterogeneity observed between the MPOG center and OPO regions was steroids (between-center ICCs = 0.65, 95% CI, 0.62-0.75, between-region ICCs = 0.39, 95% CI, 0.27-0.63) and diuretics (between-center ICCs = 0.44, 95% CI, 0.36-0.6, between-region ICCs = 0.30, 95% CI, 0.22-0.49). Despite guidelines recommending maintenance of MAP >60 mm Hg in adult brain-dead organ donors, hypotension during recovery procedures was common. Future research is needed to clarify the relationship between intraoperative events with donation and transplantation outcomes and to identify best practices for the anesthetic management of brain-dead donors in the operating room.

Hypothermia in preterm infants admitted to low-resource neonatal units in northern Nigeria: an observational study of occurrence and risk factors

BackgroundHypothermia is an important cause of morbidity and mortality among preterm and low-birth-weight neonates. In resource-constrained settings, limited referral infrastructure and technologies for temperature control potentiate preterm hypothermia. While there is some documentation on point-of-admission hypothermia from single center studies, there are limited multicenter studies on the occurrence of hypothermia among preterm infants in resource-limited-settings. Therefore, we conducted a multicenter study to determine the prevalence and risk factors for hypothermia at the time of admission and during the first 72 h after admission in northern Nigeria.MethodWe carried out a prospective cohort study on preterm infants admitted to four referral hospitals in northern Nigerian between August 2020 and July 2021. We documented temperature measurements at admission and the lowest and highest temperatures in the first 72 h after admission. We also collected individual baby-level data on sociodemographic and perinatal history data. We used the World Health Organization classification of hypothermia to classify the babies’ temperatures into mild, moderate, and severe hypothermia. Poisson regression analysis was used to identify risk factors for moderate-severe hypothermia.ResultsOf the 933 preterm infants enrolled, 682 (72.9%) had hypothermia at admission although the prevalence of hypothermia varied across the four hospitals. During the first 24 h after admission, 7 out of every 10 babies developed hypothermia. By 72 h after admission, between 10 and 40% of preterm infants across the 4 hospitals had at least one episode of moderate hypothermia. Gestational age (OR = 0.86; CI = 0.82–0.91), birth weight (OR = 8.11; CI = 2.87–22.91), presence of a skilled birth attendant at delivery (OR = 0.53; CI = 0.29–0.95), place of delivery (OR = 1.94 CI = 1.13–3.33) and resuscitation at birth (OR = 1.79; CI = 1.27–2.53) were significant risk factors associated with hypothermia.ConclusionThe prevalence of admission hypothermia in preterm infants is high and hypothermia is associated with low-birth-weight, place of delivery and presence of skilled birth attendant. The prevalence of hypothermia while in care is also high and this has important implications for patient safety and quality of patient care. Referral services for preterm infants need to be developed while hospitals need to be better equipped to maintain the temperatures of admitted small and sick newborns.

Dietary diversity, undernutrition, and predictors among pregnant adolescents and young women attending Gulu University teaching hospitals in northern Uganda.

Undernutrition has deleterious consequences to both the mother and the unborn child, significantly contributing to maternal and neonatal morbidity and mortality. We assessed dietary diversity, the prevalence, and predictors of undernutrition among pregnant adolescents and young women (PAYW) attending antenatal clinic (ANC) at two large teaching hospitals in northern Uganda. Between 12th June 2023 to 27th October 2023, we conducted a facility-based, cross-sectional study at Gulu Regional Referral Hospital (GRRH) and St Mary's Hospital Lacor (SMHL), both in Gulu district, Uganda. We recruited PAYW aged 15-24 years attending ANCs. Sociodemographic and clinical characteristics of the study participants were collected using a pre-tested, semi-structured questionnaire. Undernutrition was defined as a mid-upper arm circumference (MUAC) of < 23 cm. Modified Poisson regression analysis was performed to determine factors independently associated with undernutrition. Data analyses was performed using STATA version 17.0. A p<0.05 was considered statistically significant. A total of 324 participants, with a mean age of 21.2±2.2 years were enrolled. About 62.0% (n = 201) of the participants dewormed during pregnancy. The prevalence of undernutrition was 12.7% [n = 41]. Prevalence was higher among participants who maintained pre-pregnancy diet (adjusted prevalence ratio [aPR] = 2.27, 95% Confidence Interval [CI]: 1.26-4.05, p = 0.006), those who did not receive nutritional education (aPR = 2.25, 95% CI: 1.21-4.20, p = 0.011) and consumption of non-green leafy vegetables (aPR = 4.62 95% CI: 1.64-13.01, p = 0.004). The prevalence of undernutrition was lower among participants who consumed milk and milk products (aPR = 0.44 95% CI: 0.24-0.81, p = 0.009) and among those who consumed fish and seafood compared to those who did not (aPR = 0.45 95% CI: 0.20-1.00, p = 0.050). About 1 in 8 of PAYW attending GRRH or SMHL had undernutrition, particularly those who lacked education about feeding habits during pregnancy and limited access to milk and milk products, fish and seafoods. We recommend health workers to offer timely education of pregnant adolescent and young women mothers about good feeding habits during pregnancy, appropriate monitoring of weight gain and physiological changes during pregnancy.

Association Between Low Kidney Function and Excess Weight Concerning Unfavourable Periodontal Health among Community-dwelling Older Japanese Women.

To investigate the association of low renal function and overweight with poor periodontal condition in community-dwelling older Japanese women. In total, 359 older women (age range: 55-74 years) participated in this study. Two periodontal parameters - the number of teeth with a probing pocket depth (PPD) or clinical attachment level (CAL) ≥ 4 mm - were used as the dependent variables. The principal independent variables were low renal function as defined by the estimated glomerular filtration rate (eGFR) and overweight as defined by the body mass index. Poisson regression analysis was used to calculate the ratio of means (RM). The RMs of the number of teeth with a PPD or CAL ≥ 4 mm in an adjusted model without an interaction term were 1.21- or 1.27-fold higher among those with an eGFR < 60, while those among the participants with an eGFR < 60 in the adjusted model with interaction terms for the number of teeth with a PPD or CAL ≥ 4 mm were 1.43- or 1.36-fold higher. In addition, increments of periodontal risk with low renal function and overweight showed a slightly smaller to negative trend. The present findings suggest a connection between unfavourable periodontal health and both renal function and being overweight among older Japanese women. A weak negative interaction was also found between poor renal condition and overweight in relation to periodontal condition.

Effects of particulate matter (PM2.5) concentration and components on mortality in chronic kidney disease patients: a nationwide spatial–temporal analysis

Chronic kidney disease (CKD) is a major global public health issue and the leading cause of death in Thailand. This study investigated the spatial–temporal association between PM2.5 and its components (organic carbon, black carbon, dust, sulfate, and sea salt) and CKD mortality in Thailand from 2012 to 2021. The Modern-Era Retrospective analysis for Research and Application version 2 (MERRA-2), a NASA atmospheric satellite model, was assessed for the temporal data of PM2.5 concentration and aerosol components. Spatial resources of 77 provinces were integrated using the Geographical Information System (GIS). Multivariate Poisson regression and Bayesian inference analyses were conducted to explore the effects of PM2.5 on CKD mortality across the provinces. Our analysis included 718,686 CKD-related deaths, resulting in a mortality rate of 1107 cases per 100,000 population where was the highest rate in Northeast region. The average age of the deceased was 72.43 ± 13.10 years, with males comprising 50.46% of the cases. Adjusting for age, sex, underlying diseases, co-morbidities, CKD complications, replacement therapy, population density, and income, each 1 µg/m3 increase in PM2.5, black carbon, dust, sulfate, and organic carbon was significantly associated with increased CKD mortality across 77 provinces. Incidence rate ratios were 1.04 (95% CI 1.03–1.04) for PM2.5, 1.11 (95% CI 1.10–1.13) for black carbon, 1.24 (95% CI 1.22–1.25) for dust, 1.16 (95% CI 1.16–1.17) for sulfate, and 1.05 (95% CI 1.04–1.05) for organic carbon. These findings emphasize the significant impact of PM2.5 on CKD mortality and underscore the need for strategies to reduce PM emissions and manage CKD co-morbidities effectively.

Can Support Groups Improve Treatment Adherence and Reduce Sexual Risk Behavior among Young People Living with HIV? Results from a Cohort Study in South Africa.

Adolescents and young adults living with HIV (AYLHIV) in sub-Saharan Africa experience poorer HIV outcomes than adults, including lower ART adherence and virologic suppression. They also have high rates of unprotected sex, increasing the risk of adverse sexual health outcomes and onward transmission. This one-arm, pre-post study investigates a structured 14-session support group aiming to boost treatment adherence and sexual protective behavior for AYLHIV in South Africa. Logistic and Poisson regression analyses were performed on self-reported pre- and post-intervention survey data collected approximately 7.5 months apart from a cohort of 548 AYLHIV. Participants were significantly more likely to report at least 95% adherence at follow-up and rate their health as "good;" they also demonstrated greater treatment knowledge and had fewer absences from school overall and due to illness. Among sexually active AYLHIV, contraception use at last sex increased significantly, while condom use did not. Effects were small, and greater programmatic emphasis on adherence and multifaceted service packages is likely necessary to promote viral suppression. Nonetheless, the intervention addresses an important gap in service provision for AYLHIV in South Africa. Findings denote the potential for incorporating care and treatment components into sexual and reproductive health interventions tailored for AYLHIV.

Medical care for transgender individuals at a hospital in southern Brazil: why do they drop out from our service?

The objective of the study was to investigate dropout rates and discern potential factors contributing to the discontinuation of treatment provided to transgender individuals by the Transdisciplinary Gender Identity Program at the Hospital de Clínicas de Porto Alegre (PROTIG). This study employs a descriptive, cross-sectional, retrospective design to analyze socio-demographic and clinical data obtained from medical records of patients treated at PROTIG between 2000 and 2018. A structured form, devised by PROTIG's professional team, was utilized to extract and evaluate several variables including: age, gender, education level, diagnosis of F64 according to the International Classification of Diseases (ICD-10: Version: 2010), clinical comorbidities (coded by ICD-10), laboratory diagnosis of sexually transmitted infections, distance between patients' residence and the hospital, and year of entry into PROTIG. The patient cohort was stratified into two categories based on their duration of attendance: dropout (defined as attendance for up to 365 days) and non-dropout (attendance exceeding 365 days). Categorical variables between dropout and non-dropout groups were compared using Pearson's chi-square test. Additionally, Poisson regression analysis was utilized, employing a 95% confidence interval (CI) and setting the significance level at 0.05. The study included a total of 888 patients accessing PROTIG, with 275 (31%) classified in the dropout group. Of the patient population, 65.5% (n = 582) self-identified as transgender women, while 34.5% (n = 306) identified as transgender men. Significant differences were noted between the dropout and non-dropout groups. Specifically, differences were noted among transgender women (p < 0.001), individuals with lower levels of education (p < 0.001), those with fewer diagnoses classified under ICD-10 as F64 (p < 0.001), individuals exhibiting fewer clinical comorbidities recorded in ICD-10 (p < 0.001), and those who commenced inclusion in PROTIG after 2010 (p < 0.001). There exists a notable rate of treatment discontinuation among individuals receiving care at PROTIG, with statistically significant variances observed between groups. We posit potential rationales for this discontinuation, informed by care experiences and feedback from group attendees: Increased accessibility to outpatient services in our jurisdiction for Transgender Care, along with heightened societal awareness of gender identity fostering diverse gender expression avenues devoid of reliance on gender-affirming surgical interventions.