There is a need for wastewater based epidemiological (WBE) methods that integrate multiple, variously sized surveillance sites across geographic areas. We developed a novel indexing method, Melvin’s Index, that provides a normalized and standardized metric of wastewater pathogen load for qPCR assays that is resilient to surveillance site variation. To demonstrate the utility of Melvin’s Index, we used qRT-PCR to measure SARS-CoV-2 genomic RNA levels in influent wastewater from 19 municipal wastewater treatment facilities (WWTF’s) of varying sizes and served populations across the state of Minnesota during the Summer of 2020. SARS-CoV-2 RNA was detected at each WWTF during the 20-week sampling period at a mean concentration of 8.5 × 104 genome copies/L (range 3.2 × 102–1.2 × 109 genome copies/L). Lag analysis of trends in Melvin’s Index values and clinical COVID-19 cases showed that increases in indexed wastewater SARS-CoV-2 levels precede new clinical cases by 15–17 days at the statewide level and by up to 25 days at the regional/county level. Melvin’s Index is a reliable WBE method and can be applied to both WWTFs that serve a wide range of population sizes and to large regions that are served by multiple WWTFs.
Dr Linzer and Ms Frees had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis.
Objective: This study assessed the unique coping strategies of transgender and gender nonconforming (TGNC) individuals in the United States used to manage gender-related stress, and examined associations between specific coping profiles and mental health. Methods: Data were from 316 participants in the 2014-2015 Transgender Stress and Health Study, an online study of TGNC mental and sexual health. A factor analysis of the coping measure (Brief COPE) was followed by a k-means cluster analysis to evaluate distinct profiles of coping with gender-related stress. Proportional odds models and logistic regression models indicated how coping profiles related to levels of self-reported depressive symptoms and suicidality. Results: A 4-factor structure was identified with three distinct profiles of coping with gender-related stress, each representative of the frequency (high or low) in which participants used functional and dysfunctional coping strategies: (a) high-functional/low-dysfunctional, (b) high-functional/high-dysfunctional, and (c) low-functional/low-dysfunctional. There were significant differences in depressive symptoms and suicidality based on distinct gender-related coping profiles. The high-functional/high-dysfunctional group reported significantly poorer mental health compared with the high-functional/low-dysfunctional group. Conclusion: To improve mental health outcomes in TGNC individuals, health providers and researchers should strive to not only promote functional coping strategies for managing gender-related stress but also decrease dysfunctional coping strategies.
BACKGROUND
Epidemiologic assessment of surgical admissions into intensive care units (ICUs) provides a framework to evaluate health care system efficiency and project future health care needs.
METHODS
We performed a 9-year (2008–2016), retrospective, cohort analysis of all adult admissions to 88 surgical ICUs using the prospectively and manually abstracted Cerner Acute Physiology and Chronic Health Evaluation Outcomes database. We stratified patients into 13 surgical cohorts and modeled temporal trends in admission, mortality, surgical ICU length of stay (LOS), and change in functional status (FS) using generalized mixed-effects and Quasi-Poisson models to obtain risk-adjusted outcomes.
RESULTS
We evaluated 78,053 ICU admissions and observed a significant decrease in admissions after transplant and thoracic surgery, with a concomitant increase in admissions after otolaryngological and facial reconstructive procedures (all p < 0.05). While overall risk-adjusted mortality remained stable over the study period; mortality significantly declined in orthopedic, cardiac, urologic, and neurosurgical patients (all p < 0.05). Cardiac, urologic, gastrointestinal, neurosurgical, and orthopedic admissions showed significant reductions in LOS (all p < 0.05). The overall rate of FS deterioration increased per year, suggesting ICU-related disability increased over the study period.
CONCLUSION
Temporal analysis demonstrates a significant change in the type of surgical patients admitted to the ICU over the last decade, with decreasing mortality and LOS in selected cohorts, but an increasing rate of FS deterioration. Improvement in ICU outcomes may highlight the success of health care advancements within certain surgical cohorts, while simultaneously identifying cohorts that may benefit from future intervention. Our findings have significant implications in health care systems planning, including resource and personnel allocation, education, and surgical training.
LEVEL OF EVIDENCE
Economic/decision, level IV.Epidemiologic, level IV.
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