1.Risk of COVID-19 outcomes among healthcare workers: Findings from the Philippine CORONA retrospective cohort study.
Adrian I. ESPIRITU ; Carl Froilan D. LEOCHICO ; Isabella E. SUPNET ; Emilio Q. VILLANUEVA III ; Marie Charmaine C. SY ; Veeda Michelle M. ANLACAN ; Roland Dominic G. JAMORA
Acta Medica Philippina 2025;59(2):25-32
OBJECTIVES
While many healthcare workers (HCWs) contracted COVID-19 during the pandemic, more information is needed to fully understand the potential for adverse health effects in this population segment. The aim of the present study is to examine the association between healthcare worker status and neurologic and clinical outcomes in COVID-19 infected inpatients.
METHODSUsing the nationwide database provided by the retrospective cohort Philippine CORONA study, we extracted relevant data and performed a secondary analysis primarily focusing on the presentation and outcomes of healthcare workers. Propensity score matching in a 3:1 ratio was performed to match HCWs and non-HCWs. We performed multiple logistic and Cox regression analyses to determine the relationship between HCWs and COVID-19 clinical outcomes.
RESULTSWe included 3,362 patients infected with COVID-19; of which, 854 were HCWs. Among the HCWs, a total of 31 (3.63%) and 45 (5.27%) had the primary outcomes of in-hospital mortality and respiratory failure, respectively. For both overall and 3:1 propensity-matched cohorts, being an HCW significantly decreased the odds of the following outcomes: severe/critical COVID-19 at nadir; in-hospital mortality; respiratory failure; intensive care unit admission; and hospital stay >14 days.
CONCLUSIONWe found that being an HCW is not associated with worse neurologic and clinical outcomes among patients hospitalized for COVID-19.
Human ; Health Personnel ; Covid-19 ; Sars-cov-2 ; Cohort Studies
2.Not only baseline but cumulative exposure of remnant cholesterol predicts the development of nonalcoholic fatty liver disease: a cohort study.
Lei LIU ; Changfa WANG ; Zhongyang HU ; Shuwen DENG ; Saiqi YANG ; Xiaoling ZHU ; Yuling DENG ; Yaqin WANG
Environmental Health and Preventive Medicine 2024;29():5-5
BACKGROUND AND AIM:
Remnant cholesterol (remnant-C) mediates the progression of major adverse cardiovascular events. It is unclear whether remnant-C, and particularly cumulative exposure to remnant-C, is associated with nonalcoholic fatty liver disease (NAFLD). This study aimed to explore whether remnant-C, not only baseline but cumulative exposure, can be used to independently evaluate the risk of NAFLD.
METHODS:
This study included 1 cohort totaling 21,958 subjects without NAFLD at baseline who underwent at least 2 repeated health checkups and 1 sub-cohort totaling 2,649 subjects restricted to those individuals with at least 4 examinations and no history of NAFLD until Exam 3. Cumulative remnant-C was calculated as a timeweighted model for each examination multiplied by the time between the 2 examinations divided the whole duration. Cox regression models were performed to estimate the association between baseline and cumulative exposure to remnant-C and incident NAFLD.
RESULTS:
After multivariable adjustment, compared with the quintile 1 of baseline remnant-C, individuals with higher quintiles demonstrated significantly higher risks for NAFLD (hazard ratio [HR] 1.48, 95%CI 1.31-1.67 for quintile 2; HR 2.07, 95%CI 1.85-2.33 for quintile 3; HR 2.55, 95%CI 2.27-2.88 for quintile 4). Similarly, high cumulative remnant-C quintiles were significantly associated with higher risks for NAFLD (HR 3.43, 95%CI 1.95-6.05 for quintile 2; HR 4.25, 95%CI 2.44-7.40 for quintile 3; HR 6.29, 95%CI 3.59-10.99 for quintile 4), compared with the quintile 1.
CONCLUSION
Elevated levels of baseline and cumulative remnant-C were independently associated with incident NAFLD. Monitoring immediate levels and longitudinal trends of remnant-C may need to be emphasized in adults as part of NAFLD prevention strategy.
Adult
;
Humans
;
Cohort Studies
;
Non-alcoholic Fatty Liver Disease/etiology*
;
Cholesterol
;
Proportional Hazards Models
;
Risk Factors
3.Risk of COVID-19 outcomes among healthcare workers: Findings from the Philippine CORONA retrospective cohort study
Adrian I. Espiritu ; Carl Froilan D. Leochico ; Isabella E. Supnet ; Emilio Q. Villanueva III ; Marie Charmaine C. Sy ; Veeda Michelle M. Anlacan ; Roland Dominic G. Jamora
Acta Medica Philippina 2024;58(Early Access 2024):1-8
Objectives:
While many healthcare workers (HCWs) contracted COVID-19 during the pandemic, more information is needed to fully understand the potential for adverse health effects in this population segment. The aim of the present study is to examine the association between healthcare worker status and neurologic and clinical outcomes in COVID-19 infected inpatients.
Methods:
Using the nationwide database provided by the retrospective cohort Philippine CORONA study, we
extracted relevant data and performed a secondary analysis primarily focusing on the presentation and outcomes of healthcare workers. Propensity score matching in a 3:1 ratio was performed to match HCWs and non-HCWs. We performed multiple logistic and Cox regression analyses to determine the relationship between HCWs and COVID-19 clinical outcomes.
Results:
We included 3,362 patients infected with COVID-19; of which, 854 were HCWs. Among the HCWs, a total
of 31 (3.63%) and 45 (5.27%) had the primary outcomes of in-hospital mortality and respiratory failure, respectively. For both overall and 3:1 propensity-matched cohorts, being an HCW significantly decreased the odds of the following outcomes: severe/critical COVID-19 at nadir; in-hospital mortality; respiratory failure; intensive care unit admission; and hospital stay >14 days.
Conclusion
We found that being an HCW is not associated with worse neurologic and clinical outcomes among
patients hospitalized for COVID-19.
Health Personnel
;
COVID-19
;
SARS-CoV-2
;
Cohort Studies
4.Functional outcome after clinical recovery from moderate to critical COVID-19 among patients admitted to the Philippine General Hospital: A prospective cohort study
Micah G. Catalan ; Sharon D. Ignacio
Acta Medica Philippina 2024;58(20):35-46
BACKGROUND AND OBJECTIVE
COVID-19 is a novel disease primarily affecting the respiratory system. Of those infected, approximately 20% require management in a hospital-setting which may lead to deconditioning. Measures implemented to control spread of the virus also restricted mobility both in the hospital and community setting. The goal of this study was to describe the patient characteristics (age, sex, comorbidities), hospitalization (length of hospital stay, ICU stay, referral to Rehabilitation Medicine), and long-term functional outcome of patients who have clinically recovered from moderate to critical COVID-19 in terms of participation in activities of daily living.
METHODSThis was a descriptive prospective cohort study conducted at a tertiary government hospital with participant recruitment from September 2020 to February 2021 consisting of clinically recovered adult patients managed as COVID-19 Confirmed via rRT-PCR with moderate, severe, or critical risk status. Descriptive statistics were obtained and multiple regression analysis was done to determine associations between patient demographics and their Barthel Index Scores on follow-up at discharge, one month post-discharge, and six months post-discharge.
RESULTSA total of 63 patients were recruited to our study with an average age of 52.4 years. More recovered patients had fulfilled the criteria of moderate illness (46%), with the most common comorbidity being chronic lung disease (42.1%) and diabetes (42.1%). Almost all had total independence pre-morbidly with better baseline functional scores for the COVID-19 severe population. Majority of the patients (63.5%) were not referred for Rehabilitation services. Across all patients, Barthel Index Score at discharge indicated a significant decline from slight dependence to moderate dependence in performing activities of daily living with the pre-morbid status significantly predicting scores at discharge (β = 0.621, p = 0.001) on multiple regression analysis. Patient demographics, hospitalization and ICU stay and outcome, and referral to Rehabilitation Medicine were not found to be significant factors. In the course of follow up, a high dropout rate was observed across the population and by the end of the study, 57.1% of the participants were alive while among those lost to follow up, 20.6% had expired and the remaining 22.2% had an unknown status.
CONCLUSIONCOVID-19 significantly affects the functional outcome of patients in terms of activities of daily living as measured by the Barthel Index. Preliminary data gathered from our study and the high dropout rate supports the need for better follow-up and selecting a tool that is better able to describe the non-demographic factors affecting functionality and participation in activities of daily living.
Covid-19 ; Patient-relevant Outcome ; Treatment Outcome ; Activities Of Daily Living ; Rehabilitation ; Cohort Studies
5.How to conduct and write a cohort study.
Michael Ian N. Sta. Maria ; Nicolas R. Gordo Jr.
The Filipino Family Physician 2024;62(1):42-50
Cohort studies is an epidemiologic study that follows a group of individuals who share a common characteristic at the start of the study to observe the emergence of outcomes. Cohort studies are classified based on the population characteristics from where they were drawn, the way the data collection occurred or if its open or closed. This allows the computation of the absolute risk or the incidence of an outcome. There are several advantages in conducting a cohort study, such as clarity of temporal relationship of the exposure and outcome, permits the computation of incidence, permits multiple effects of a single exposure, and avoids selection bias on admission. While there are advantages, there are also disadvantages in doing this study, such as it requires long follow-up, need of large sample size, maybe costly, and may make it difficult to argue causation due to the presence of confounding. The statistical test that can be used to analyze the results will depend on the type of variable used. Statistical test such as T-test, Chi square test, and Regression can be used. Writing the final report follows the STROBE guidelines.
Cohort Studies ; Epidemiologic Studies
7.Low diastolic blood pressure and adverse outcomes in inpatients with acute exacerbation of chronic obstructive pulmonary disease: A multicenter cohort study.
Chen ZHOU ; Qun YI ; Yuanming LUO ; Hailong WEI ; Huiqing GE ; Huiguo LIU ; Xianhua LI ; Jianchu ZHANG ; Pinhua PAN ; Mengqiu YI ; Lina CHENG ; Liang LIU ; Jiarui ZHANG ; Lige PENG ; Adila AILI ; Yu LIU ; Jiaqi PU ; Haixia ZHOU
Chinese Medical Journal 2023;136(8):941-950
BACKGROUND:
Although intensively studied in patients with cardiovascular diseases (CVDs), the prognostic value of diastolic blood pressure (DBP) has little been elucidated in patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD). This study aimed to reveal the prognostic value of DBP in AECOPD patients.
METHODS:
Inpatients with AECOPD were prospectively enrolled from 10 medical centers in China between September 2017 and July 2021. DBP was measured on admission. The primary outcome was all-cause in-hospital mortality; invasive mechanical ventilation and intensive care unit (ICU) admission were secondary outcomes. Least absolute shrinkage and selection operator (LASSO) and multivariable Cox regressions were used to identify independent prognostic factors and calculate the hazard ratio (HR) and 95% confidence interval (CI) for adverse outcomes.
RESULTS:
Among 13,633 included patients with AECOPD, 197 (1.45%) died during their hospital stay. Multivariable Cox regression analysis showed that low DBP on admission (<70 mmHg) was associated with increased risk of in-hospital mortality (HR = 2.16, 95% CI: 1.53-3.05, Z = 4.37, P <0.01), invasive mechanical ventilation (HR = 1.65, 95% CI: 1.32-2.05, Z = 19.67, P <0.01), and ICU admission (HR = 1.45, 95% CI: 1.24-1.69, Z = 22.08, P <0.01) in the overall cohort. Similar findings were observed in subgroups with or without CVDs, except for invasive mechanical ventilation in the subgroup with CVDs. When DBP was further categorized in 5-mmHg increments from <50 mmHg to ≥100 mmHg, and 75 to <80 mmHg was taken as reference, HRs for in-hospital mortality increased almost linearly with decreased DBP in the overall cohort and subgroups of patients with CVDs; higher DBP was not associated with the risk of in-hospital mortality.
CONCLUSION:
Low on-admission DBP, particularly <70 mmHg, was associated with an increased risk of adverse outcomes among inpatients with AECOPD, with or without CVDs, which may serve as a convenient predictor of poor prognosis in these patients.
CLINICAL TRIAL REGISTRATION
Chinese Clinical Trail Registry, No. ChiCTR2100044625.
Humans
;
Blood Pressure
;
Pulmonary Disease, Chronic Obstructive/therapy*
;
Cohort Studies
;
Respiration, Artificial
;
Inpatients
;
Hospital Mortality
8.Association between inflammation, body mass index, and long-term outcomes in patients after percutaneous coronary intervention: A large cohort study.
Guyu ZENG ; Deshan YUAN ; Sida JIA ; Peizhi WANG ; Liu RU ; Tianyu LI ; Ce ZHANG ; Xueyan ZHAO ; Song LEI ; Lijian GAO ; Jue CHEN ; Yuejin YANG ; Shubin QIAO ; Runlin GAO ; Xu BO ; Jinqing YUAN
Chinese Medical Journal 2023;136(14):1738-1740
9.Changes in early postoperative outcomes and complications observed in a single center during the 2022 COVID-19 pandemic wave in China: A single-center ambispective cohort study.
Lini WANG ; Ziyu ZHENG ; Shouqiang ZHU ; Gang LUO ; Baobao GAO ; Yumei MA ; Shuai XU ; Hailong DONG ; Chong LEI
Chinese Medical Journal 2023;136(14):1708-1718
BACKGROUND:
Currently, the effect of the 2022 nationwide coronavirus disease 2019 (COVID-19) wave on the perioperative prognosis of surgical patients in China is unclear. Thus, we aimed to explore its influence on postoperative morbidity and mortality in surgical patients.
METHODS:
An ambispective cohort study was conducted at Xijing Hospital, China. We collected 10-day time-series data from December 29 until January 7 for the 2018-2022 period. The primary outcome was major postoperative complications (Clavien-Dindo class III-V). The association between COVID-19 exposure and postoperative prognosis was explored by comparing consecutive 5-year data at the population level and by comparing patients with and without COVID-19 exposure at the patient level.
RESULTS:
The entire cohort consisted of 3350 patients (age: 48.5 ± 19.2 years), including 1759 females (52.5%). Overall, 961 (28.7%) underwent emergency surgery, and 553 (16.5%) had COVID-19 exposure (from the 2022 cohort). At the population level, major postoperative complications occurred in 5.9% (42/707), 5.7% (53/935), 5.1% (46/901), 9.4% (11/117), and 22.0% (152/690) patients in the 2018-2022 cohorts, respectively. After adjusting for potential confounding factors, the 2022 cohort (80% patients with COVID-19 history) had a significantly higher postoperative major complication risk than did the 2018 cohort (adjusted risk difference [aRD], 14.9% (95% confidence interval [CI], 11.5-18.4%); adjusted odds ratio [aOR], 8.19 (95% CI, 5.24-12.81)). At the patient level, the incidence of major postoperative complications was significantly greater in patients with (24.6%, 136/553) than that in patients without COVID-19 history (6.0% [168/2797]; aRD, 17.8% [95% CI, 13.6-22.1%]; aOR, 7.89 [95% CI, 5.76-10.83]). Secondary outcomes of postoperative pulmonary complications were consistent with primary findings. These findings were verified through sensitivity analyses using time-series data projections and propensity score matching.
CONCLUSION:
Based on a single-center observation, patients with recent COVID-19 exposure were likely to have a high incidence of major postoperative complications.
REGISTRATION
NCT05677815 at https://clinicaltrials.gov/ .
Female
;
Humans
;
Adult
;
Middle Aged
;
Aged
;
Cohort Studies
;
COVID-19/complications*
;
Pandemics
;
Retrospective Studies
;
Postoperative Complications/epidemiology*
10.Effect of Age and Sex on Stroke Mortality of Young and Middle-aged Adults in China, 2002-2019, and Predictions to 2030.
Yi ZHAI ; Xiang SI ; Wen Zhi WANG ; Wen Hua ZHAO
Biomedical and Environmental Sciences 2023;36(4):305-312
OBJECTIVE:
This study aimed to examine the trends in stroke mortality among young and middle-aged adults in China.
METHODS:
Data were obtained from the China national vital registration system. Significant changes in mortality were assessed by Joinpoint regression. Age-period-cohort analysis was used to explain the reasons for the changes. Future mortality and counts were predicted by the Bayesian age-period-cohort model.
RESULTS:
Between 2002 and 2019, a total of 6,253,951 stroke mortality in young and middle-aged adults were recorded. The age-adjusted mortality rates (AAMRs) of women showed a downward trend. The annual percent changes (APC) were -3.5% (-5.2%, -1.7%) for urban women and -2.8% (-3.7%, -1.9%) for rural women. By contrast, the AAMRs per 100,000 for rural men aged 25-44 years continued to rise from 9.40 to 15.46. The AAMRS for urban men aged 25-44 years and urban and rural men aged 45-64 years did not change significantly. Between 2020 and 2030, the projected stroke deaths are 1,423,584 in men and 401,712 in women.
CONCLUSION
Significant sex and age disparities in the trends of stroke mortality among young and middle-aged adults were identified in China. Targeted health policy measures are needed to address the burden of stroke in the young generation, especially for rural men, with a focus on the prevention and management of high risk factors.
Middle Aged
;
Male
;
Adult
;
Humans
;
Female
;
Bayes Theorem
;
Urban Population
;
Stroke/epidemiology*
;
Cohort Studies
;
China/epidemiology*
;
Mortality


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