Multicenter Cross-sectional Study Research Articles

Mental health and insomnia problems in healthcare workers after the COVID-19 pandemic: A multicenter cross-sectional study

BACKGROUND Healthcare workers (HCWs) are at increased risk of contracting coronavirus disease 2019 (COVID-19) as well as worsening mental health problems and insomnia. These problems can persist for a long period, even after the pandemic. However, less is known about this topic. AIM To analyze mental health, insomnia problems, and their influencing factors in HCWs after the COVID-19 pandemic. METHODS This multicenter cross-sectional, hospital-based study was conducted from June 1st, 2023 to June 30th, 2023, which was a half-year after the end of the COVID-19 emergency. Region-stratified population-based cluster sampling was applied at the provincial level for Chinese HCWs. Symptoms such as anxiety, depression, and insomnia were evaluated by the Generalized Anxiety Disorder-7, Patient Health Questionnaire-9, and Insomnia Severity Index. Factors influencing the symptoms were identified by multivariable logistic regression. RESULTS A total of 2000 participants were invited, for a response rate of 70.6%. A total of 1412 HCWs [618 (43.8%) doctors, 583 (41.3%) nurses and 211 (14.9%) nonfrontline], 254 (18.0%), 231 (16.4%), and 289 (20.5%) had symptoms of anxiety, depression, and insomnia, respectively; severe symptoms were found in 58 (4.1%), 49 (3.5%), and 111 (7.9%) of the participants. Nurses, female sex, and hospitalization for COVID-19 were risk factors for anxiety, depression, and insomnia symptoms; moreover, death from family or friends was a risk factor for insomnia symptoms. During the COVID-19 outbreak, most [1086 (76.9%)] of the participating HCWs received psychological interventions, while nearly all [994 (70.4%)] of them had received public psychological education. Only 102 (7.2%) of the HCWs received individual counseling from COVID-19. CONCLUSION Although the mental health and sleep problems of HCWs were relieved after the COVID-19 pandemic, they still faced challenges and greater risks than did the general population. Identifying risk factors would help in providing targeted interventions. In addition, although a major proportion of HCWs have received public psychological education, individual interventions are still insufficient.

Prevalence and determinants of moderate-to-severe anaemia in the third trimester of pregnancy: a multicenter cross-sectional study in Lagos, Nigeria.

The high burden of anaemia during pregnancy underscores the urgent need to gain a comprehensive understanding of the factors contributing to its widespread occurrence. Our study assessed the prevalence and the trends of moderate-to-severe anaemia (MSA) in late pregnancy (28 to 36weeks) and then investigated the key determinants driving this prevalence among women in Lagos, Nigeria. We conducted a secondary data analysis involving 1216 women enrolled in the Predict-PPH study between January and March 2023. We employed a multivariate binary logistic regression model with a backward stepwise selection approach to identify significant predictors of MSA. The study revealed a 14.5% prevalence of MSA during pregnancy. Independent predictors of MSA included having given birth to two or more children (adjusted odds ratio = 1.46, 95% confidence interval: 1.03-2.07), having a maternal body mass index (BMI) of 28kg/m2 or higher (adjusted odds ratio = 1.84, 95% confidence interval: 1.29-2.61), having less than tertiary education (adjusted odds ratio = 1.51, 95% confidence interval: 1.08-2.11), and being unemployed (adjusted odds ratio = 1.97, 95% confidence interval: 1.19-3.26). It is crucial for pregnant women, particularly those with higher parities and elevated BMI, to be monitored regularly for anaemia and its consequences during their antenatal care. Additionally, addressing the link between low education, unemployment, and anaemia necessitates comprehensive strategies that empower women in terms of education and economic status to enhance the overall well-being of individuals and communities, ultimately reducing the prevalence of anaemia and associated health issues in pregnancy.

Development and Validation of a Nomogram for Predicting Nutritional Risk Based on Frailty Scores in Older Stroke Patients.

In older stroke patients with frailty, nutritional deficiencies can amplify their susceptibility, delay recovery, and deteriorate prognosis. A precise predictive model is crucial to assess their nutritional risk, enabling targeted interventions for improved clinical outcomes. To develop and externally validate a nutritional risk prediction model integrating general demographics, physical parameters, psychological indicators, and biochemical markers. The aim is to facilitate the early identification of older stroke patients requiring nutritional intervention. This was a multicenter cross-sectional study. A total of 570 stroke patients were included, 434 as the modeling set and 136 as the external validation set. The least absolute shrinkage selection operator (LASSO) regression analysis was used to select the predictor variables. Internal validation was performed using Bootstrap resampling (1000 iterations). The nomogram was constructed based on the results of logistic regression. The performance assessment relied on the receiver operating characteristic curve (ROC), Hosmer--Lemeshow test, calibration curves, Brier score, and decision curve analysis (DCA). The predictive nomogram encompassed seven pivotal variables: Activities of Daily Living (ADL), NIHSS score, diabetes, Body Mass Index (BMI), grip strength, serum albumin levels, and depression. Together, these variables comprehensively evaluate the overall health and nutritional status of elderly stroke patients, facilitating accurate assessment of their nutritional risk. The model exhibited excellent accuracy in both the development and external validation sets, evidenced by AUC values of 0.934 and 0.887, respectively. Such performance highlights its efficacy in pinpointing elderly stroke patients who require nutritional intervention. Moreover, the model showed robust goodness of fit and practical applicability, providing essential clinical insights to improve recovery and prognosis for patients prone to malnutrition. Elderly individuals recovering from stroke often experience significant nutritional deficiencies. The nomogram we devised accurately assesses this risk by combining physiological, psychological, and biochemical metrics. It equips healthcare providers with the means to actively screen for and manage the nutritional care of these patients. This tool is instrumental in swiftly identifying those in urgent need of targeted nutritional support, which is essential for optimizing their recovery and managing their nutrition more effectively.

Nurses' knowledge, attitudes and practices regarding the application of the injury severity score in emergency departments: A cross-sectional multicentre study.

To investigate knowledge, attitudes, and practices regarding the application of the Injury Severity Score (ISS) among emergency department nurses in China and the factors influencing these variables. ISS is the first trauma scoring method to be developed and the most widely used in clinical practice. The correct application of the ISS by emergency department nurses plays an important role in assisting in the diagnosis and treatment of trauma patients, and it is crucial to understand nurses' knowledge, attitudes and practices. A cross-sectional multicentre study. Nurses from the emergency departments of 25 grade II and grade III hospitals in Gansu Province, China participated in this study. Data was collected online using a self-administered questionnaire. Student's t-test or analysis of variance was performed to compare the differences between the groups. Multiple logistic regression analysis identified factors influencing nurses' knowledge, attitudes and practices regarding applying ISS. A STROBE checklist was used to report findings. Among 459 nurses, a good level of attitude and passing levels of knowledge and practice regarding applying the ISS were revealed. Nurses in higher hospital grades, who had been exposed to ISS and received training had higher levels of knowledge and practices. Previous exposure to the ISS and training related to it were factors that influenced nurses' attitudes. Chinese emergency department nurses' knowledge, attitudes and practices of applying the ISS still need to be improved. Hospitals and nursing managers should provide training opportunities for nurses about ISS knowledge and practices, while grade II hospitals should pay more attention to training and continuing education in this area. In hospitals, nursing managers may benefit from enhancing related education and training to promote the emergency department nurses' knowledge and practice of the ISS, by developing specific curricula and providing continuing education and training opportunities, while grade II hospitals should pay more attention to training and continuing education in this area. This study focused on emergency department nurses' knowledge, attitudes, and practices regarding the application of the ISS. The research questions and design were derived from clinical nursing practice, literature review, and expert panel review, and patients or the public are temporarily not involved.

Factors related to patients’ perception of feeling safe in pre-hospital emergencies: a multicenter cross-sectional study

Factors related to patients’ perception of feeling safe in pre-hospital emergencies: a multicenter cross-sectional study

Risk-adjusted trend in national inpatient fall rates observed from 2011 to 2019 in acute care hospitals in Switzerland: a repeated multicentre cross-sectional study

ObjectivesThis study aimed to investigate whether a significant trend regarding inpatient falls in Swiss acute care hospitals between 2011 and 2019 could be confirmed on a national level, and whether...

Screening for hepatitis C virus at the time of mammography using rapid diagnostic tests in women aged between 50 and 74 years (Mamm'OC NCT05067374).

Chronic hepatitis C Virus (HCV) infection presents a global health challenge, with significant morbidity and mortality worldwide. Despite remarkable progress in treatment options, achieving elimination targets by 2030, as set by the World Health Organization, remains elusive. Our study aimed to address this gap by integrating HCV screening into a national breast cancer screening program. Between March 2022 and March 2023, a prospective cross-sectional multicenter study was conducted in four radiology centers in Montpellier, France. We proposed HCV screening to consecutive women undergoing mammography, targeting 1,500 participants aged 50-74 years. A rapid diagnostic test (RDT) for HCV antibodies (HCV Ab) was performed on capillary whole blood, with positive cases undergoing serological and RNA confirmation. Participants also completed a questionnaire on demographic data and risk factors. Acceptance rates, HCV prevalence, and linkage to care were assessed. The acceptance rate for this integrated screening approach was 82.4%. Notably, the seroprevalence of HCV was found to be 0.65%. Linkage to care was prompt, and the cascade of care demonstrated successful treatment outcomes. Importantly, the majority of detected infections were successfully resolved. These findings underscore the feasibility and acceptability of integrating HCV screening with breast cancer screening programs providing updated prevalence data and valuable insights for refining future screening strategies.

Pain and daily interference among reproductive-age women with myofascial pelvic pain: Serial mediation roles of kinesiophobia, self-efficacy and pain catastrophizing.

Myofascial pelvic pain (MFPP), which is identified by tender points in the pelvic floor musculature, is a prevalent source of chronic pelvic pain in women. It may lead to physical and mental exhaustion, reproductive concerns, and coping difficulties in daily life and work than the disease itself. Pain-related cognitive processes can affect pain relief and quality of life. Kinesiophobia, self-efficacy and pain catastrophizing are frequently treated as mediators between pain and its related consequences. Greater kinesiophobia and pain catastrophizing have been shown to be associated with adverse functional outcomes, while higher self-efficacy has been related with improved quality of life. Regarding MFPP in females of childbearing age, it remains unclear whether the effects of kinesiophobia, self-efficacy and pain catastrophizing on daily interference are direct or indirect; the influence on each variable is, therefore, not entirely evident. The present study aimed to evaluate the relationship between pain and daily interference in reproductive-age women with MFPP through kinesiophobia, self-efficacy and pain catastrophizing, as well as to identify areas for future investigation and intervention based on the data collected from this population. This is a multi-center cross-sectional study. The study was conducted from November 15, 2022 to November 10, 2023, 202 reproductive-age women with MFPP were recruited from 14 hospitals in ten provinces of China. The demographic variables, Brief Pain Inventory, Tampa Scale of Kinesiophobia, Pain Self-Efficacy Questionnaire, and Pain Catastrophizing Scale were used to measure the participants' related information. The data was described and analyzed using Descriptive analyses, Pearson correlation analysis, and Serial mediation modeling. Pain not only had a direct positive impact (B = 0.575; SE = 0.081; 95%CI: LL = 0.415, UL = 0.735) on daily interference, but also had an indirect impact on daily interference through the independent mediating role of pain catastrophizing (B = 0.088; SE = 0.028; 95%CI: LL = 0.038, UL = 0.148), the chain mediating of kinesiophobia and catastrophizing (B = 0.057; SE = 0.019; 95%CI: LL = 0.024, UL = 0.098), and the four-stage serial mediating of kinesiophobia, self-efficacy and catastrophizing (B = 0.013; SE = 0.006; 95%CI: LL = 0.003, UL = 0.027). The proposed serial mediation model showed a good fit with the collected data. The findings illustrate the significance of addressing pain catastrophizing and kinesiophobia (especially catastrophizing), and increasing self-efficacy in pain therapy, and suggest that functional recovery be integrated into pain therapy for reproductive-age women suffering from MFPP.

Paediatric off-label use of drugs in Gansu, China: a multicentre cross-sectional study

ObjectiveTo examine the current prevalence and cost of paediatric off-label drug prescriptions in Gansu, China, and the potential influencing factors.DesignThe prevalence of off-label prescriptions in paediatrics was evaluated according to...

Prevalence and associated factors of proliferative diabetic retinopathy among adult diabetic patients in Northwest Ethiopia, 2023: A cross-sectional multicenter study.

Proliferative diabetic retinopathy is one of the advanced complications of diabetic retinopathy. If left untreated, almost all eyes could lose a significant portion of their vision within four months. There is limited evidence regarding the magnitude of proliferative diabetic retinopathy and associated factors in the study setting and also in Ethiopia. To determine the magnitude and associated factors of proliferative diabetic retinopathy among adult diabetic patients attending Specialized Comprehensive Hospital-Diabetic Care Clinics in Northwest Ethiopia, 2023. A multicenter, hospital-based, cross-sectional study was conducted on 1219 adult diabetic patients selected by systematic random sampling technique. Data were collected through an in-person interview and physical examination. The Statistical Package for Social Science Version 20 was used to analyze the data. Logistic regression methods were used to test the association between predisposing factors and proliferative diabetic retinopathy. The adjusted odds ratio with a 95% confidence interval was used to determine the strength of association. The prevalence of proliferative diabetic retinopathy was 3.1% (95% CI: 2.10%-4.10%). Hypertension (AOR = 4.35 (95% CI: 1.87-10.12)), peripheral neuropathy (AOR = 3.87 (95% CI: 1.57-9.54)), nephropathy (AOR = 2.58 (95% CI: 1.13-5.87)), ≥10 years duration of diabetes mellitus (AOR = 5.30 (95% CI: 2.32-12.14)), insulin use (AOR = 3.07 (95% CI: 1.08-8.68)), and poor adherence to diabetes mellitus medications (AOR = 3.77 (95% CI: 1.64-8.64)) were confirmed to have statistically significant association with proliferative diabetic retinopathy. The prevalence of proliferative diabetic retinopathy among adult diabetic patients in the diabetes clinic was higher than the global study. Hypertension, peripheral neuropathy, nephropathy, ≥10 year's duration of diabetic mellitus, insulin use and poor adherence to diabetes mellitus medications were among the factors significantly associated with proliferative diabetic retinopathy.

Nurses′ knowledge and practice about neonatal pain management in public hospitals in West Oromia, Ethiopia, 2022: multi-centered cross-sectional study

BackgroundIn low-and middle-income countries inadequate neonatal pain management persists as a significant public health issue despite the availability of guidelines. Newborns often experience pain from routine medical and surgical procedures, with limited nurses’ knowledge and suboptimal practices posing common obstacles to effective neonatal pain management in hospital settings. Hence, this study aimed to evaluate nurses’ knowledge and practices related to neonatal pain management and the factors influencing them in public hospitals in West Oromia, Ethiopia, in 2022.MethodsA multicenter cross-sectional study was conducted among 203 nurses working in public hospitals in West Oromia from 8th May-6th June 2022. Data was gathered using structured, self-administered questionnaire and sampled through simple random sampling. The collected data were coded and entered into a computer using Epi-Data version 4.6 Statistical Software. They were analyzed using the Statistical Package for Social Science (SPSS; IBM Corporation) version 26. Binary logistic regression was used to identify significant independent variables at p < 0.05.FindingsIn this study, 127 (62.6%) exhibited adequate knowledge, while 33 (16.3%) nurses demonstrated good practice in neonatal pain management. Attending lectures or receiving training about neonatal pain management was found to be significantly associated with nurses’ knowledge of neonatal pain management [AOR, 2.31, 95%CI; 1.29–4.27]. On the other, having adequate knowledge of neonatal pain management [AOR, 3.3, 95%CI; 1.14–9.32]; the presence of a pain management policy in place [AOR, 5.44, 95% CI; 1.92–15.37] and attending lectures on neonatal pain management [AOR, 2.55, 95% CI; 1.09–5.97] were found to be significantly associated to nurses’ practices.ConclusionGiven the substandard level of nurses’ practice in neonatal pain management. It is suggested to enhance the nurses’ knowledge and practice about neonatal pain management by providing refreshment courses, training sessions, or facilitating nurses’ opportunity access to reading resources about neonatal pain management.

Taste alteration and its relationship with nutritional status among cancer patients receiving chemotherapy, cross-sectional study

The aim of this study is to determine the prevalence of taste alterations (TAs) during chemotherapy and their association with nutritional status and malnutrition. In addition to the associated factors with TA, including sociodemographic health-related factors and clinical status, and to investigate coping strategies to manage TA. A multicenter cross-sectional design study was conducted on 120 cancer patients aged at least 18 who had been undergoing at least one round of chemotherapy. TAs were evaluated using the chemotherapy-induced taste alteration scale (CiTAS), the malnutrition universal screening tool (MUST) was used for nutritional screening, the antineoplastic side effects scale (ASES) was used for subjective assessment of chemotherapy side effects, and the Charlson comorbidity index (CCI) was used for comorbidity assessment. SPSS21 software was used to analyze the data, and the independent T-test and one-way ANOVA test were used to determine the association between TAs and a variety of related variables. The prevalence of TAs was 98.3%. Among participants, 48.3% were at low risk of malnutrition, 20% at medium risk, and 31.7% at high risk. Malnutrition risk was associated with taste disorders (p&lt;0.05). Patients’ age, gender, educational level, and physical status were associated with TAs (p&lt;0.05). Type of cancer, chemotherapy regimen, and number of chemotherapy cycles were also associated with TAs (p&lt;0.05). A variety of antineoplastic side effects were associated with TAs (p&lt;0.05), including nausea, vomiting, dry mouth, sore mouth and throat, excessive thirst, swallowing difficulty, appetite changes, weight loss, dizziness, lack of energy, disturbed sleep, anxiety, and difficulty concentrating. TAs were associated with an increased number of comorbidities, and individuals with diabetes, pulmonary diseases, and hypertension were associated with TAs (P&lt;0.05). Patients in this study rarely practice self-management strategies to cope with TAs. A high prevalence (98.3%) of TAs in cancer patients receiving chemotherapy was found, and it was linked to a variety of negative outcomes. Chemotherapy-induced TAs are an underestimated side effect that requires more attention from patients and health care providers.

Immunity against measles, mumps, rubella, and varicella among homeless individuals in Germany — A nationwide multi-center cross-sectional study

IntroductionHomeless individuals suffer a high burden of vaccine-preventable infectious diseases. Moreover, they are particularly susceptible to adverse infection outcomes with limited access to the health care system. Data on the seroprevalence of measles, mumps, rubella, and varicella within this cohort are missing.MethodsThe seroprevalence of measles, mumps, rubella, and varicella was determined within the homeless population in Germany. Predictors of lacking immune protection were determined using multivariable logistic regression analysis.ResultsHomeless individuals in Germany (n = 611) showed a seroprevalence of 88.5% (95% CI: 85.8–91.0) for measles, 83.8% (95% CI: 80.6–86.6) for mumps, 86.1% (95% CI: 83.1–88.7) for rubella, and 95.7% (95% CI 93.8–97.2) for varicella. Measles seroprevalences declined from individuals born in 1965 to individuals born in 1993, with seroprevalences not compatible with a 95% threshold in individuals born after 1980. For mumps, seroprevalences declined from individuals born in 1950 to individuals born in 1984. Here, seroprevalences were not compatible with a 92% threshold for individuals born after 1975. Seronegativity for measles, mumps and rubella was associated with age but not with gender or country of origin.DiscussionHerd immunity for measles and mumps is not achieved in this homeless cohort, while there was sufficient immune protection for rubella and varicella. Declining immune protection rates in younger individuals warrant immunization campaigns also targeting marginalized groups such as homeless individuals. Given that herd immunity thresholds are not reached for individuals born after 1980 for measles, and after 1975 for mumps, vaccination campaigns should prioritize individuals within these age groups.

Comparison of knowledge, self-perception about malocclusion and orthodontic treatment need amongst undergraduate dental students

ABSTRACT Introduction Perception regarding malocclusion and esthetics is affected by knowledge, age, race, gender, social background, and exposure. This study compares knowledge and awareness of undergraduate dental students regarding malocclusion, its impact on oral and mental health, and students’ self- perceived need for orthodontic treatment. Material and Methods A multi-centre cross-sectional study evaluated 424 questionnaires. They were assessed and compared on knowledge, awareness, and self-perception regarding malocclusion. Results were reported in percentages and compared using chi-square test. Results Most of the respondents were females, (82.1%). 4th year students were most aware about malocclusion’s effects on caries (86.8%), plaque (98.1%) and gingivitis (85.8%), p-value was significant, 0.000. Mostly, 3rd year students favoured well-aligned teeth, 91.5%, (p = 0.431); 2nd year students mostly, regarded aligned teeth important for esthetics (96.2%) p = 0.042; 4th year students mostly reported self-perceived need for orthodontic treatment, 43.4% (p = 0.048) and thought malocclusion affected one’s self-esteem 86.8% (p = 0.031), acceptance amongst peers 51.9% (p = 0.000) and mental health 52.8% (p = 0.000). Conclusion Knowledge and self-perception regarding malocclusion did not have a direct relation with the level of education of the dental students studied.

Operative management of primary hyperparathyroidism in Europe.

Multicentre studies have previously reported on national outcomes of surgery for primary hyperparathyroidism, but not investigated whether management and outcome are uniform among countries. This study investigated whether there are differences among European countries in operative management and outcome of surgery for primary hyperparathyroidism. Using data from Eurocrine®, a pan-European registry for endocrine surgeries, a retrospective observational cross-sectional multicentre study with 99 participating centres in 14 European countries was performed. Data on age, sex, calcium levels, operative strategy, conversion rate and rate of failed exploration were analysed for patients who underwent initial surgery for sporadic primary hyperparathyroidism. Primary outcome measures were intention to perform limited parathyroidectomy and the rate of hypercalcaemia at first follow-up. A total of 9548 patients were registered between 2015 and 2020. There were 7642 (80%, range 74.5-93.2%) females. There was intention to perform limited parathyroidectomy in 7320 of 9548 (76.7%) operations, ranging from 498 of 1007 (49.5%) to 40 of 41 (97.6%) among countries. Hypercalcaemia at first follow-up (median time to follow-up 15 days) was found in 416 of 9548 (4.4%) operations, ranging from 0 of 119 (0%) to 3 of 38 (7.9%) among countries. This study demonstrated large differences in the intention to perform limited parathyroidectomy for primary hyperparathyroidism among European countries, as well as differences in the rate of postoperative hypercalcaemia. Future studies are needed to evaluate the impact of these different healthcare practices on patient outcomes.

Resilience in patients with fabry disease and its association with disease course, psychosocial factors and quality of life: a multicentre cross-sectional study

Resilience in patients with fabry disease and its association with disease course, psychosocial factors and quality of life: a multicentre cross-sectional study

Home care practice behavior and its influencing factors of primary care providers: a multicenter cross-sectional study in Sichuan Province, China

BackgroundPrimary care providers play an important role in home health care, and their practice behavior is significant for care quality and patient outcomes. This study aimed to assess the home care practice behavior of Chinese primary care providers and to explore the factors associated with the practice behavior.MethodsA multicenter cross-sectional design with a convenience sample was used to survey 863 registered primary care providers from 62 primary health care settings in Sichuan Province, China. Descriptive statistics, t-test or ANOVA for one-way analysis, and Pearson’s correlation analyses were used to compare the differences and examine the relationships between participants’ demographics and experience of home care services and practice behavior. Multiple linear regression models were performed to identify salient variables associated with the practice behavior from among demographic and home care experience.ResultsThe score of home care practice behavior questionnaire was 97.25 ± 21.05. The average scores for the dimensions of home visit preparation, assessment, medical care behavior and safety practice were 3.70 ± 0.95, 3.76 ± 1.02, 3.66 ± 1.03, and 3.20 ± 0.46, respectively. Home care practice behavior was associated with working years, working experience in general hospitals, work area, home care experience such as client types of home care, service frequency and willingness, explaining 21.5% of the total variance.ConclusionChinese primary care providers had a medium to high level of home care practice behavior but poor implementation of safety practice. The results may provide clues to increased focus and implementation of safety practice, as well as providing targeted measures based on influencing factors.

The non-linear associations between blood manganese level and sarcopenia in patients undergoing maintenance hemodialysis: A multicenter cross-sectional study

Background and aimsManganese (Mn), a vital element in energy metabolism, is predominantly stored in skeletal muscles and plays a crucial role in muscle function and strength. Patients on maintenance hemodialysis (MHD) often experience muscle wasting due to metabolic disruption and inflammation. This study aimed to explore the relationship between blood Mn levels and sarcopenia in a patient population. MethodsIn this multicenter cross-sectional study, conducted from March 2021 to March 2022, 386 patients on MHD from three medical centers were included. Blood Mn levels were measured using inductively coupled plasma mass spectrometry, and body composition was assessed post-dialysis using bioelectrical impedance analysis. Grip strength was measured using a digital dynamometer. The patients were categorized into groups with and without sarcopenia. Using a generalized additive model to fit a smooth curve, we employed a generalized linear model to identify the optimal inflection point and explore the threshold effect after discovering a segmented relationship. Subsequently, a binary logistic regression analysis was conducted to investigate the relationship between blood manganese levels and the risk of sarcopenia, with adjustments made for potential confounding factors. ResultsA negative correlation was observed between blood Mn levels and sarcopenia-related parameters (Appendicular Skeletal Muscle Mass Index and grip strength) in Spearman’s correlation analysis (both P < 0.05). After adjusting for confounding factors, a nonlinear association was identified. When blood Mn was ≤ 10.6 μg/L, the increase in sarcopenia was not statistically significant (P > 0.05). Conversely, when blood Mn exceeded 10.6 μg/L, each 1 μg/L increase raised the risk of sarcopenia by 0.1 times. Considering confounders, multivariate binary logistic regression confirmed an independent association between elevated blood Mn levels and sarcopenia. ConclusionThis study revealed an independent association between elevated blood Mn levels (> 10.6 μg/L) and sarcopenia in patients undergoing MHD. These findings emphasize the importance of understanding the Mn metabolism in the context of muscle health in this patient population. Further research is warranted to explore the underlying mechanisms and potential interventions for mitigating sarcopenia in patients with elevated blood Mn levels undergoing MHD.

Xpert-Ultra assay on stool and urine to improve tuberculosis diagnosis in children: the Médecins Sans Frontières experience in Guinea-Bissau and South Sudan

Abstract Background Over half of childhood tuberculosis (TB) remains undiagnosed yearly. WHO recommends Xpert-Ultra as a first paediatric diagnosis test, but microbiological confirmation remains low. We aimed to determine the diagnostic performance of Xpert-Ultra on stool and urine in presumptive paediatric TB cases in two high-TB burden settings. Methods This Médecins sans Frontières cross-sectional multicentric study took place at Simão Mendes hospital, Guinea-Bissau (July 2019 to April 2020) and in Malakal hospital, South Sudan (April 2021 to June 2023). Children 6 months to 15 years with presumptive TB underwent clinical and laboratory assessment, with one respiratory and/or extrapulmonary sample (gold standard (GS)), one stool and one urine specimen analysed with Xpert-Ultra. Results A total of 563 children were enrolled in the study, 133 from Bissau, 400 from Malakal; 30 were excluded. Confirmation of TB was achieved in 75 (14.1%) while 248 (46.5%) had unconfirmed TB. Of 553 with GS specimen, the overall diagnostic yield was 12.4% (66/533). A total of 493 and 524 samples were used to evaluate Xpert-Ultra on stool and on urine, respectively. Compared to GS, sensitivity and specificity of Xpert-Ultra on stool were 62.5%(95%CI:49.4-74) and 98.3%(95%CI:96.7-99.2), whereas on urine were 13.9%(95%CI:7.5-24.3) and 99.4%(95%CI:98.1-99.8), respectively. Nine patients were positive on stool and/or urine but negative on GS. Conclusions Xpert-Ultra on stool showed moderate to high sensitivity and high specificity when compared to GS and an added diagnostic yield when GS was negative. Xpert-Ultra on stool was useful in extrapulmonary cases. Xpert-Ultra in urine showed low test performance. Trial registration NCT06239337

Chinese Healthcare Workers' Knowledge, Attitudes, and Practices in Diabetic Kidney Management: A Multi-Centered Cross-Sectional Study.

Given the importance of diabetic kidney disease (DKD) management, this study aims to explore the knowledge, attitudes, and practices in disease management demonstrated by healthcare workers from the nephrology department. This study is a multi-centered cross-sectional study, and adopts snowball sampling, with 530 healthcare workers being recruited to complete a questionnaire covering areas such as demographic characteristics, knowledge, attitude, and practices (KAP) of DKD management. This data was analyzed using descriptive statistics and binary logistics analysis. In this study, 530 healthcare workers were studied, including 94 doctors and 436 nurses. The participants were mainly from general tertiary hospitals in 14 provinces. For Chinese nurse, the results indicate that both poor knowledge level (Odds Ratio (OR) =0.63, 95% Confidence Interval (CI): 0.42-0.94) and having experience in further medical training in nephrology (OR=1.92, 95% CI: 1.20-3.08) are associated with the practice levels. For Chinese doctors, having not experience in further medical training in nephrology (OR=0.36, 95% CI: 0.15-0.83) are associated with their practice levels. In summary, Chinese doctors and nurses in this study showed positive attitudes towards DKD management, but their knowledge and practical skills were lacking. This underscores a notable gap in achieving optimal DKD care. Notably, nurses' knowledge influenced their management practices, and additional nephrology training correlated with better engagement. To improve patient care, enhancing nephrology healthcare professional training and addressing knowledge-practice disparities are recommended.