Higher Risk Of Hospital Admission Research Articles

Enhancing care coordination through transitional care management.

232 Background: West Cancer Center and Research Institute (WCCRI) serves Memphis and the Arkansas, Mississippi, and Tennessee tri-state region as the comprehensive care leader in adult cancer care and research, amounting to over 260,000 visits across 57,000 unique patients in 2023. Cancer patients are predisposed for higher risk of hospital admissions, making uniform care coordination between the discharging hospital and their outpatient oncology care home essential to care continuity. While WCCRI attempted to mitigate readmissions, there was no formalized managed care approach for capturing and responding to unplanned patient hospital visits to prevent readmission. Auditing of claims data suggested nearly 500 patient care opportunities within a four-month period. Methods: To improve continuity of care and decrease preventable readmissions, WCCRI implemented a care transitions process based on the Centers for Medicare and Medicaid's Transitional Care Management (TCM). This required a repeatable approach of proactive outreach to patient upon discharge, a clinical assessment of patient need, and an office visit within fourteen days of discharge. To maximize impact, this project was scoped to patients with unplanned hospital admissions who are at moderate to high risk for readmission. Results: Twelve months after implementation, WCCRI has proactively identified 974 patients qualifying for TCM and successfully scheduled 91.48% for a hospital follow-up appointment with their oncologist. Proactive outreach to patients has led to a 35% increase in office visits within fourteen days of discharge, a key measure of care continuity. Conclusions: Learnings from this implementation project have been spread to formalize hospital follow-up approaches across WCCRI. By aligning policies, engaging stakeholders, and fostering a culture of collaboration and accountability, WCCRI has delivered high-quality, coordinated care, and achieved better patient outcomes.

Relationship between continuity of primary care and hospitalisation for patients with COPD: population-based cohort study from South Korea

ObjectivesThe existing evidence for the impacts of continuity of care (COC) in patients with chronic obstructive pulmonary disease (COPD) is low to moderate. This study aimed to investigate the associations...

Characteristics of motor vehicle crashes and fatality risk among drivers with epilepsy.

Among motor vehicle crashes (MVCs), little is known about whether the characteristics and collision features involving drivers with epilepsy differ from those involving drivers without any history of epilepsy. We assessed MVC features and the effect of epilepsy diagnosis on the risk of severe crash-related injuries among drivers. A total of 33 174 MVC events among people with epilepsy (PWE) and 663 480 MVC events of age- and sex-matched non-PWE (1:20) were selected. Crash-related features that involved drivers with and without epilepsy were compared, including driver eligibility, medical history of comorbidities and medications, road and environmental conditions, and accident causes. Cox and logistic regression analyses were used to examine the risks of fatality and severe injury among drivers with and without epilepsy. PWE involved in MVCs were more likely to have lower socioeconomic status, comorbidities, scooter drivers without a qualified driver's license, driving under the influence of alcohol, and be involved in single-vehicle accidents than non-PWE. Drivers with epilepsy also had a higher risk of fatality within 30 days of MVC, with an adjusted hazard ratio (aHR) of 1.37 (95% confidence interval [CI], 1.20-1.57) and a higher risk of hospital admission within 3 days after MVC (aHR, 1.33; 95% CI, 1.29-1.38) compared to that of non-PWE. The characteristics of MVCs of drivers with epilepsy were distinct from those of non-affected drivers. And higher fatality and injury rates were observed among drivers with epilepsy, which should be considered in further policymaking regarding safe driving of PWE.

Women have a higher risk of hospital admission associated with hyponatremia than men while using diuretics.

Hyponatremia is a common electrolyte disturbance and known adverse drug reaction of diuretics. Women tend to be more susceptible for diuretic associated hyponatremia. The aim of this study was to find more evidence whether women have a higher risk of diuretic associated hyponatremia than men measured at hospital admission for specific diuretic groups and whether there is a sex difference in risk of severity of hyponatremia. All patients using a diuretic and admitted for any reason to Tergooi MC and Haga Teaching hospital in the Netherlands between the 1st of January 2017 and the 31st of December 2021, with recorded sodium levels at admission were included in this study. Cases were defined as patients with a sodium level <135mmol/L, while control patients had a sodium level ≥135mmol/L at admission. Logistic regression analysis was used to calculate odds ratios (OR) with 95% CIs for women versus men and adjusted for potential confounding covariables (age, body mass index, potassium serum level, systolic and diastolic blood pressure, estimated glomerular filtration rate, number of diuretics, comedications and comorbidities). Stratified analyses were conducted for specific diuretic groups (thiazides, loop diuretics and aldosterone antagonists), and adjusted for dose. Furthermore, stratified analyses were performed by severity of hyponatremia (severe: <125mmol/L), mild: 125-134mmol/L). A total of 2,506 patients (50.0% women) were included, of which 516 had hyponatremia at admission (20.6%, 56.2% women). Women had a statistically significantly higher risk for hyponatremia at admission than men (OR 1.37; 95% CI 1.12-1.66) and after adjustment for potential risk factors (ORadj 1.55; 95% CI 1.22-1.98). Stratified analyses showed increased odds ratios for thiazides (ORadj 1.35; 95% CI 1.00-1.83) and loop diuretics (ORadj 1.62; 95% CI 1.19-2.19) among women. Use of aldosterone antagonists was also increased but not statistically significant (ORadj 1.15; 95% CI 0.73-1.81). Women had a statistically higher risk to develop mild and severe hyponatremia than men (ORadj 1.36; 95% CI 1.10-1.68 and ORadj 1.96; 95%CI 1.04-3.68, respectively). Women have a higher risk of a hospital admission associated with hyponatremia while using diuretics than men. Further research is necessary to provide sex-specific recommendations.

Hospital admissions in the last month of life for patients with advanced cancer residing in nursing homes

IntroductionOvertreatment and frequent hospital admissions in patients at end-of-life has been shown in several studies, including in the nursing home (NH) setting. However, overtreatment in NH residents with advanced cancer has not been studied before. Our objective was to compare emergency room (ER) visits and hospital admissions in the last month of life and place of death among NH residents with or without advanced cancer. Materials and MethodsThis retrospective study is based on Region Stockholm's administrative database from 2015 to 2019. Demographic data, ER visits, and Hospital Frailty Risk Score (HFRS) were extracted for each subject. Univariable and multivariable analyses were performed, and odds ratios (OR) calculated. ResultsIn total, 30,324 NH residents were identified, of which 1807 had advanced cancer. Advanced cancer was associated with more ER visits in the last month of life in the univariable analysis but not when adjusted for age, sex, and risk of frailty with an adjusted aOR of 1.07 (95 %CI 0.97–1.19). Having a cancer diagnosis was significantly associated with acute hospital admissions, although the association was rather weak with an aOR 1.13 (95 %CI 1.02–1.26). NH residents with advanced cancer were less likely to die in hospital than non-cancer residents: aOR 0.63 (95 %CI 0.54–0.73). DiscussionNH residents with advanced cancer have a slightly higher risk of hospital admissions in the last month of life compared to non-cancer residents but are less likely to die in hospital. The probability of ER visits during the last month of life was similar between NH residents with and without cancer.

Short-Term Exposure to Ambient Air Pollution and Schizophrenia Hospitalization: A Case-Crossover Study in Jingmen, China

The impact of short-term exposure to air pollutants on the morbidity of schizophrenia, particularly in low- and middle-income countries, remains inadequately explored. The objective of this research was to investigate the relationship between short-term exposure to ambient air pollutants and the risk of schizophrenia hospitalization in Jingmen, China. We performed a time-stratified case-crossover study using daily records of hospital admissions due to schizophrenia in Jingmen Mental Health Center from 2015 to 2017. Environmental exposures to air pollutants and meteorological conditions on case and control days were estimated on the basis of measurements from ground monitoring stations. To investigate the relationship between short-term exposure to ambient air pollutants and the risk of hospitalization for schizophrenia, a conditional logistic regression model was employed. We performed subgroup analyses stratified according to sex, age groups, and season. In total, 4079 schizophrenia hospitalizations were recorded during the designated period. Increased risk of schizophrenia was merely associated with short-term exposure to SO2 and NO2. The estimated odds per interquartile range (IQR) increase in exposure was 1.112 (95% confidence interval (CI): 1.033, 1.196) for SO2 (IQR = 12 µg/m3) and 1.112 (95% CI: 1.033, 1.197) for NO2 (IQR = 18 µg/m3) on lag-0 day. Greater air pollution-schizophrenia associations were observed among middle-aged and older adults (over 45 years of age) and during the cold season. This study added case-crossover evidence indicating that short-term exposure to ambient air pollution, specifically SO2 and NO2, is linked to a higher risk of hospital admissions for schizophrenia. These findings contribute to a better understanding of the detrimental effects of air pollution on neuropsychiatric health conditions.

The non-conveyance of trauma patients in Swedish emergency medical services: a retrospective observational study of the trauma population not transported to an emergency department

IntroductionDue to a systemic modification in Swedish emergency medical services (EMS) staffing in recent years, the nature of the Swedish EMS has changed. Transport to an emergency department (ED) is no longer the only option. Referrals and non-conveyance form a growing part of EMS assignments. Trauma is one of the most common causes of death and accounts for 17% of Swedish EMS assignments. The aim of this study was to describe the characteristics and clinical outcomes of non-conveyed trauma patients who were assessed, treated and triaged by the EMS to gain a better understanding of, and to optimise, transport and treatment decisions.MethodsThe study had a descriptive, retrospective and epidemiologic design and was conducted by reviewing EMS and hospital records for 837 non-conveyed trauma patients in the southwest of Sweden in 2019.ResultsThree in four non-conveyed trauma patients did not seek further medical care within 72 h following EMS assessment. The patients who were admitted to hospital later were often older, had suffered a fall and had a medical history. Half of all the incidents occurred in a domestic environment, and head trauma was the major complaint. Less than 1% of the studied patients died.ConclusionMost of the non-conveyed trauma patients did not seek further medical care after being discharged at the scene. Falling was the most common trauma event, and for the older population, this meant a higher risk of hospital admission. The reasons for falls should therefore be investigated thoroughly prior to non-conveyance decisions. Future studies should focus on the reasons for non-conveyance and measure the morbidity and invalidity outcomes rather than mortality.

Short term exposure to low level ambient fine particulate matter and natural cause, cardiovascular, and respiratory morbidity among US adults with health insurance: case time series study

ObjectiveTo estimate the excess relative and absolute risks of hospital admissions and emergency department visits for natural causes, cardiovascular disease, and respiratory disease associated with daily exposure to fine particulate...

Reasons for hospitalisation and cumulative mortality in people, 75 years or older, at high risk of hospital admission: a prospective study

BackgroundA small proportion of the older population accounts for a high proportion of healthcare use. For effective use of limited healthcare resources, it is important to identify the group with greatest needs. The aim of this study was to explore frequency and reason for hospitalisation and cumulative mortality, in an older population at predicted high risk of hospital admission, and to assess if a prediction model can be used to identify individuals with the greatest healthcare needs. Furthermore, discharge diagnoses were explored to investigate if they can be used as basis for specific interventions in the high-risk group.MethodsAll residents, 75 years or older, living in Östergötland, Sweden, on January 1st, 2017, were included. Healthcare data from 2016 was gathered and used by a validated prediction model to create risk scores for hospital admission. The population was then divided into groups by percentiles of risk. Using healthcare data from 2017–2018, two-year cumulative incidence of hospitalisation was analysed using Gray´s test. Cumulative mortality was analysed with the Kaplan–Meier method and primary discharge diagnoses were analysed with standardised residuals.ResultsForty thousand six hundred eighteen individuals were identified (mean age 82 years, 57.8% women). The cumulative incidence of hospitalisation increased with increasing risk of hospital admission (24% for percentiles < 60 to 66% for percentiles 95–100). The cumulative mortality also increased with increasing risk (7% for percentiles < 60 to 43% for percentiles 95–100). The most frequent primary discharge diagnoses for the population were heart diseases, respiratory infections, and hip injuries. The incidence was significantly higher for heart diseases and respiratory infections and significantly lower for hip injuries, for the population with the highest risk of hospital admission (percentiles 85–100).ConclusionsIndividuals 75 years or older, with high risk of hospital admission, were demonstrated to have considerable higher cumulative mortality as well as incidence of hospitalisation. The results support the use of the prediction model to direct resources towards individuals with highest risk scores, and thus, likely the greatest care needs. There were only small differences in discharge diagnoses between the risk groups, indicating that interventions to reduce hospitalisations should be personalised.Trial registrationclinicaltrials.gov Identifier: NCT03180606, first posted 08/06/2017.

Characterizing the clinical subgroups of individuals who present to the emergency department for alcohol-related harms in Ontario, Canada: A latent class analysis

Alcohol-related emergency department (ED) visits are common and associated with adverse clinical outcomes, including premature mortality. This population-based retrospective cohort study identified clinically distinct subgroups of individuals who experience alcohol-related ED visits and characterized differences in the risk of adverse outcomes between them. 73,658 individuals who experienced an alcohol-related ED visit in Ontario, Canada between 2017 and 2018 were identified. Latent class analysis (LCA) revealed five clinically distinct subgroups within the overall cohort. These subgroups followed a severity gradient from low-frequency service use for acute intoxication to high-frequency service use for alcohol use disorder (AUD) and related comorbidities. Relative to those presenting for acute intoxication, those presenting for AUD and comorbidities had a much higher risk of hospital admission (adjusted odds ratio [aOR]: 8.26, 95 % confidence interval [CI]: 7.81–8.75) and post-discharge mortality (adjusted hazard ratio [aHR]: 3.07, 95 % CI: 2.81–3.37). There was a subgroup of individuals with a history of high frequency alcohol-related health service use who were at the highest risk of experiencing another alcohol-related ED visit after the index event (aHR: 4.76, 95 % CI: 4.55–4.99). Individuals who experience alcohol-related ED visits are not a homogenous population, but a constellation of subgroups with different clinical characteristics and risk of adverse outcomes.

RECURRENT FALLS IN OLDER ADULTS ARE ASSOCIATED WITH MORTALITY AND HOSPITALIZATION

Abstract Annually, 1 in 4 older adults fall and roughly half have a second fall within 6 months. We studied 57 hospitals in the TriNetX Network. We included all older adults discharged home from the emergency department (ED) after a fall in 2022 for a total of 89,061 patients. Of these, 13,389 (15%) patients returned to the ED for another fall within 6 months. Patients with repeat falls were older (78.7 vs 76.5 years), more likely to have hypertension (76 vs 56%), prior myocardial infarction (14 vs 3%), heart failure (29 vs. 15%), peripheral vascular disease (18 vs 10%), cerebrovascular event (19 vs 10%), chronic obstructive pulmonary disease (COPD) (23 vs 14%), diabetes (40 vs 23%), liver disease (17 vs 11%), chronic kidney disease (30 vs 16%), and cancer (45 vs 32%); P&amp;lt; 0.001. Patients with recurrent falls were more likely to be prescribed cardiovascular medications (84 vs. 66%), central nervous system medications (87 vs 69%), opioids (71 vs 52%), sedatives/hypnotics (59 vs 42%), antipsychotics (23 vs 12%), antidepressants (51 vs 32%), antiparkinsonian agents (9 vs 4%), and antivertigo agents (15 vs 9%); P&amp;lt; 0.001. Patients with a recurrent fall within 6 months had higher hospital admission rate (46.2 vs 15.8%, OR 4.6 [95%CI, 4.4-4.7]) and higher mortality rate (6.2 vs 3.5%, OR 1.83 [95%CI 1.7-2.0]). Older adults discharged home from the ED after falling are at high risk of a second fall and those who have a repeat fall within 6 months are at higher risk of hospital admission and mortality.

Risk factors for severe disease and mortality in children with COVID-19

BackgroundPediatric COVID-19 patients have lower rates of hospitalization and fatal outcomes compared to adults with COVID-19; however, children represent a challenge in the detection, diagnosis, and treatment of COVID-19. Our aim was to determine the risk factors for hospital admission, invasive mechanical ventilation, and mortality in pediatric COVID-19 patients in Mexico during the COVID-19 pandemic. Material and methodsA retrospective cohort of pediatric patients with COVID-19 from February 2020 to April 2021 was reported on the National Epidemiological Surveillance System for Viral Respiratory Disease (SISVER) platform. ResultsAmong the 104,133 patients included in our study, 6214 were hospitalized, and 621 patients underwent invasive mechanical ventilation. A total of 0.65 % died during hospitalization. Children aged <12 months (odds ratio [OR]: 17.1; 95 % confidence interval [CI]: 15.9–19.4, p < 0.001), 1–4 years (OR: 3.69; 95 % CI: 3.2–4.1, p < 0.001), 5–9 years (OR: 1.86; 95 % CI: 1.66–2.08, p < 0.001), and 10–14 years (OR: 1.23; 95 % CI: 1.11–1.37, p < 0.001), and those diagnosed with diabetes (OR: 2.32; 95 % CI 1.68–3.20, p < 0.001) and obesity (OR: 1.24; 95 % CI 1.04–1.48, p = 0.015) were associated with hospital admission. Renal disease (OR: 3.85; 95 % CI: 2.25–6.59, p < 0.001) was associated with invasive mechanical ventilation. Pneumonia (OR: 15.9; 95 % CI: 12.6–20.1, p < 0.001) and renal disease (OR: 3.85; 95 % CI: 2.25–6.59, p value < 0.001) were associated with death. ConclusionPneumonia increases the risk of death. The youngest age group has a higher risk of hospital admission. Comorbidities such as renal disease or immunosuppression increase the risk of death in all age groups.

Natural Language Processing Identification of Symptoms in Emergency Department Visits in Patients Receiving Radiation

Patients undergoing radiotherapy (RT) for cancer often require emergency department (ED) attention with possible hospitalization. Designing strategies to mitigate hospital admissions requires understanding the causal symptoms to tailor interventional strategies. Natural language processing (NLP) has previously been shown to accurately identify documented symptoms and may help characterize factors contributing to admission. The objective of this study was to use NLP to identify documented symptoms during ED visits and their association with subsequent hospital admission of patients undergoing RT. A de-identified, single tertiary-care institution cohort of patients who received radiation between 2013 and 2022 was identified from the electronic health record using International Classification of Disease (ICD) and Current Procedural Terminology (CPT) codes. We applied a previously validated clinical Text Analysis and Knowledge Extraction System (cTAKES)-based NLP pipeline to extract Common Terminology Criteria for Adverse Events (CTCAE) encoded symptoms from ED encounter clinical notes. Chi-squared testing was used to compare demographics, and logistic regression was used to identify symptoms associated with subsequent admission from ED visits. We identified 14,007 patients who received radiation, of whom 270 (1.9%) experienced 302 ED visits during their radiation course. 141 (46.7%) of ED visits resulted in an admission. Among patients with an ED encounter, there were no differences in admission rates based on primary language (p = 0.771), sex (p = 0.824), marital status (p = 0.753), race (p = 0.222), or age (p = 0.123). In admitted patients, the top 5 symptoms were pain (94.3%), nausea (92.1%), vomiting (73.7%), constipation (70.9%), and weakness (63.8%). In patients who did not require admission, the most common symptoms were pain (84.5%), nausea (67.1%), vomiting (47.2%), headache (36.6%), and weakness (35.4%). The 10 symptoms most associated with admission from the ED based on logistic regression were malaise (OR 21.7, [95% CI 10.1 - 51.0]), lethargy (19.1, [8.5 - 51.3]), flushing (15.7, [8.6 - 30.4]), agitation (12.4, [3.5 - 78.7]), somnolence (10.3, [4.7 - 25.9]), fall (8.5, [3.7 - 23.2]), fatigue (7.8, [4.6 - 13.4]), constipation (6.9, [4.2 - 11.6]), nausea (5.8, [3.0 - 12.2]), and swelling (5.4, [3.3 - 9.1]). Admitted and non-admitted ED patients with cancer seen in the ED during radiotherapy are documented to experience similar symptoms, but certain symptoms are associated with a higher risk of hospital admission. NLP may offer a mechanism for early, automated identification to facilitate supportive interventions for patients at high risk for admission during radiotherapy.

A remote care model for patients at high risk of hospital admission due to COVID-19 deterioration: who makes it at home? – a multicenter follow-up case from Slovenia

A remote care model for patients at high risk of hospital admission due to COVID-19 deterioration: who makes it at home? – a multicenter follow-up case from Slovenia

Causes, factors, and complications associated with hospital admissions among patients with Parkinson's disease.

Patients with Parkinson's disease (PD) are at a higher risk of hospital admissions compared to the general population. We studied the causes and factors associated with admissions among patients with PD over 6 years. We included all PD admissions between 1 January 2016 and 31 December 2021. Other causes of parkinsonism were excluded. Causes of admissions were divided into PD-related (direct or indirect) or non-PD-related. The type of admission was categorized into emergency or elective. We identified 605 hospital admissions (259 patients with PD); 345 (57.0%) were PD-related and 260 (43%) were non-PD-related. Emergency PD admissions contributed to 50.4% of all admissions, most commonly from respiratory infection (23%). PD admissions in comparison to non-PD admissions were associated with worse disease severity (HY ≥ 3; p < 0.001), longer disease duration [8.71 (SD 6.23) vs. 6.60 (SD 5.39) years; p < 0.001], and longer hospital stay [7.70 (SD 5.89) vs. 6.42 (SD 7.63) days; p = 0.020]. Non-PD admissions were associated with more comorbidities (97.3%; p = 0.013). There were 124 (20.5%) complications and 31 deaths (5.1%). A total of 29 deaths were due to respiratory infection and 3 deaths were due to COVID-19 pneumonia. Emergency admission (PD- and non-PD-related; p = 0.001) and respiratory-related causes (p < 0.001) were predictors of unfavorable hospital admission outcomes (death and complications). Respiratory infection was the leading cause of hospital admission and a significant independent predictor of unfavorable hospital admission outcomes (death and complications). PD-related admissions were associated with disease severity and led to more complications and longer hospital stays. Non-PD-related admissions were associated with comorbidities.

Relationship between large and small for gestational age and hospital readmission after postpartum discharge: a population-based, data-linkage study.

In contrast to SGA, LGA was associated with hospital readmission during the first month of life. Follow-up protocols that include LGA should be evaluated. •Newborns are at high risk of hospital readmission during the postpartum period. •However, the influence of appropriateness for gestational age at birth, i.e. being born small for gestational age(SGA) or large for gestational age (LGA), has been little evaluated. •In contrast to SGA born infants, we found that infants born LGA were at high risk of hospital admission and the maincause was infectious diseases. •This population should be considered at risk of early adverse outcomes and should require attentive medical follow-up after postpartum discharge.

Women on diuretics have a higher risk of hospital admission because of hyponatremia than men.

Recent studies suggest that women are more susceptible to diuretic-induced hyponatremia resulting in hospital admission than men. The aim of this study was to confirm whether these sex differences in hyponatremia-related hospital admissions in diuretic users remain after adjusting for several confounding variables such as age, dose, and concurrent medication. In a case-control design nested in diuretic users, cases of hyponatremia associated hospital admissions between 2005 and 2017 were identified from the PHARMO Data Network. Cases were 1:10 matched to diuretic users as controls. Odds ratios (OR) with 95%CIs were calculated for women versus men and adjusted for potential confounders (age, number of diuretics, other hyponatremia-inducing drugs, chronic disease score) using unconditional logistic regression analysis. A subgroup analysis was performed for specific diuretic groups (thiazides, loop diuretics and aldosterone antagonists). Women had a statistically significantly higher risk of a hospital admission associated with hyponatremia than men while using diuretics (OR 1.86, 95%CI 1.64-2.11). Adjusting for the potential confounders resulted in an increased risk for women compared to men (ORadj 2.65, 95% CI 2.31-3.04). This higher risk in women was also seen in the three subgroup analyses after adjustment. Our findings show a higher risk of hyponatremia-related hospital admission in women than men while using diuretics. Further research is needed to understand the underlying mechanism of this sex difference to be able to provide sex-specific recommendations.

Short-Term Exposure to Ambient Air Pollution and Hospital Admissions for Sequelae of Stroke in Chinese Older Adults.

Extensive evidence suggests that ambient air pollution contributes to a higher risk of hospital admissions for cerebrovascular diseases; however, its association with admissions for sequelae of stroke remains unclear. A time-stratified case-crossover study was conducted among 31,810 older adults who were admitted to hospital for sequelae of stroke in Guangzhou, China during 2016-2019. For each subject, daily residential exposure to fine particulate matter (PM2.5), inhalable particulate matter (PM10), sulfur dioxide (SO2), nitrogen dioxide (NO2), carbon monoxide (CO), and ozone (O3) was extracted from a validated grid data set. Conditional logistic regression models were used for exposure-response analyses. In single-pollutant models, each interquartile range (IQR) increase of lag 04-day exposure to CO (IQR: 0.25mg/m3) and lag 3-day exposure to O3 (69.6μg/m3) was significantly associated with a 4.53% (95% confidence interval: 1.67%, 7.47%) and 5.63% (1.92%, 9.48%) increase in odds of hospital admissions for sequelae of stroke, respectively. These associations did not significantly vary across age or sex. With further adjustment for each of the other pollutants in 2-pollutant models, the association for CO did not change significantly, while the association for O3 disappeared. We estimated that 7.72% of the hospital admissions were attributable to CO exposures. No significant or consistent association was observed for exposure to PM2.5, PM10, SO2, or NO2. In conclusion, short-term exposure to ambient CO, even at levels below the WHO air quality guideline, was significantly associated with an increased odds of hospital admissions for sequelae of stroke, which may lead to considerable excess hospital admissions.

Effects of short-term exposure to air pollution on hospital admissions for autism spectrum disorder in Korean school-aged children: a nationwide time-series study

ObjectivesThis study explored the effects of short-term exposure to air pollution on hospital admissions for autism spectrum disorder (ASD), a proxy for symptom aggravation, among Korean children aged 5–14 years.DesignTime-series...

Cardiovascular Risks and Outcome in COVID-19 Positive Patients With Cardiovascular Disease Attending Primary Health Care Corporation in Qatar: A Retrospective Cohort Study

BackgroundCoronavirus disease (COVID-19) patients with cardiovascular disease (CVD) are at a higher risk of morbidity and mortality. This study describes the risks and outcome in COVID-19 patients with CVD attending Primary Health Care Corporation (PHCC) settings in Qatar. ObjectiveTo report whether CVD increases the risk for hospitalization and further complications in COVID-19 patients. MethodsRetrospective cohort study. ResultsA total of 10,178 CVD patients’ data who tested positive for COVID-19 were extracted from electronic medical records on the basis of inclusion criteria and analyzed during the period of February 1, 2020 to December 31, 2020 (11 months). Among the patients included in the study, 64% (n=6527) were men and 36% (n=3651) were women; 23% (n=2299) were Qataris and 77% (n=7879) were non-Qataris. Among the selected age group of greater than 25 to less than 75 years, the median age was 50.83 years. More than half of the patients had diabetes (69.6%; n=7086) followed by hypertension (68.4%; n=6965) and dyslipidemia (45.1%; n=4590). Other comorbidities were obesity (18.3%; n=1862), kidney disease (6.5%; n=659), hematologic problems (4.2%; n=425), liver disorders (1.4%; n=142), rheumatic heart disease (1.3%; n=131) and neurologic symptoms (1.3%; n=128). Multivariate analysis for factors associated with inpatient admissions in last 28 days for patients with CVD reported that patients with age greater than 70 years are 2.8 (1.86-4.18) times higher risk of hospital admission as compared with the patients 25-30 years of age. ConclusionThe pre-existing CVD with age and other comorbidities predict the risk for hospitalization and further complications in patients with COVID-19. Further studies are needed to investigate the data from primary and secondary care about the long-term cardiovascular outcomes of patients who have survived COVID-19.