George, T. (2023, June 22).What Is a Retrospective Cohort Study? | Definition & Examples.Scribbr. Retrieved December 30, 2024, from https://www.scribbr.com/methodology/retrospective-cohort-study/ Cite this article Tegan George Tegan is an American based in Amsterdam, with master's degrees in...
A classified analysis of the efficacy and advantages of TCM for the prevention and treatment of COVID-19 has been performed, and this study can be a valuable reference for the application of TCM. Several representative Chinese herbal medicine formulations, including Jing Fang Bai Du San, were us...
This multicentre retrospective study examined the effects of adjunct yoga-treatment in achieving composite cardiovascular goals for type 2 diabetes (T2D), set forth by the American Diabetes Association (ADA) in rural Indian settings. Records were extracted for 146 T2D patients, aged ≥20–70 years,...
Definition of imported malaria case, DC, and DD Imported malaria case: malaria infection in a person whose presence of malaria parasites in the blood has been confirmed by a diagnostic test and the infection acquired outside the country (in this study, China) where it was diagnosed [17]. Se...
Statistics were performed with the chi-square test, the log-rank and Fine-Gray tests. Results The median age of the cohort was 57 years (range: 55–75) and 26.25% of patients were over 60 years old. Younger patients had a higher incidence of acute graft-versus-host disease (HR =...
Data sources and cohort definition England’s Hospital Episode Statistics (HES) admitted patient care data is an administrative dataset provided by NHS Digital which captures all hospital episodes except for private patients treated in privately run hospitals. HES classifies diseases using the 10th standa...
It is important to mention that our study has limitations. Its retrospective nature carries the possibility of underestimating near-miss cases due to poor documentation [23]. Other limitations are related to the disease-specified methods which we used in identifying near miss cases. Definition of co...
Air pollution score definition To evaluate the impact of air pollutants, a novel “air pollution score” was introduced, formulated by summing the concentration values of air pollutants weighted by the multivariate-adjusted𝛽-coefficients for LBW. Air pollution score was also split into low and hig...
Due to the low specificity of CRPs, and the ambiguity of the clinical signs of neonatal EOS, data from possible culture negative EOS cases were not analysed due to the lack of a universally accepted definition of the cohort of culture negative EOS. 2.4. Statistical methods The overall discrepan...
The differences between groups were examined using the chi-square test by Statistical Product and Service Solutions software (SPSS, version 22, IBM, https://www.ibm.com/analytics/spss-statistics-software). A significant P value was defined as 0.05. Ethical approval This study was approved by the...