Results 21 to 30 of about 21,521,804 (362)

Model of care and chance of spontaneous vaginal birth: a prospective, multicenter matched-pair analysis from North Rhine-Westphalia

open access: yesBMC Pregnancy and Childbirth, 2021
Background Advantages of midwife-led models of care have been reported; these include a higher vaginal birth rate and less interventions. In Germany, 98.4% of women are giving birth in obstetrician-led units.
Sophia L. Tietjen   +7 more
doaj   +1 more source

Strengthening the Reporting of Observational Studies in Epidemiology (STROBE): Explanation and Elaboration

open access: yesВопросы современной педиатрии, 2022
Much medical research is observational. The reporting of observational studies is often of insufficient quality. Poor reporting hampers the assessment of the strengths and weaknesses of a study and the generalisability of its results. Taking into account
Jan P. Vandenbroucke   +8 more
doaj   +1 more source

Designing Case-Control Studies [PDF]

open access: yesEnvironmental Health Perspectives, 1979
Identification of confounding factors, evaluation of their influence on cause-effect associations, and the introduction of appropriate ways to account for these factors are important considerations in designing case-control studies. This paper presents designs useful for these purposes, after first providing a statistical definition of a confounding ...
openaire   +2 more sources

Statistical considerations for reporting and planning heart rate variability case-control studies.

open access: yesPsychophysiology, 2017
The calculation of heart rate variability (HRV) is a popular tool used to investigate differences in cardiac autonomic control between population samples.
D. Quintana
semanticscholar   +1 more source

Lung cancer and socioeconomic status in a pooled analysis of case-control studies

open access: yesPLoS ONE, 2018
Background An association between low socioeconomic status (SES) and lung cancer has been observed in several studies, but often without adequate control for smoking behavior. We studied the association between lung cancer and occupationally derived SES,
J. Hovanec   +41 more
semanticscholar   +1 more source

Comparative study of various socio-demographic variables in patients having type 2 diabetes mellitus with or without depressive disorder: a brief report

open access: yesOpen Journal of Psychiatry and Allied Sciences, 2016
Background: Group of common metabolic disorders, diabetes mellitus (DM) share hyperglycaemia as phenotype. When diabetes co-occurs with depression, adverse bidirectional relationship is seen which increases the burden of both illnesses.
Kamal Nath, Robin Victor, Subrata Naskar
doaj   +1 more source

Research Design: Case-Control Studies

open access: yesIndian Journal of Psychological Medicine, 2022
Case-control studies are observational studies in which cases are subjects who have a characteristic of interest, such as a clinical diagnosis, and controls are (usually) matched subjects who do not have that characteristic.
Chittaranjan Andrade
doaj   +1 more source

Sample Size and Statistical Power Calculation in Genetic Association Studies [PDF]

open access: yesGenomics & Informatics, 2012
A sample size with sufficient statistical power is critical to the success of genetic association studies to detect causal genes of human complex diseases.
Eun Pyo Hong, Ji Wan Park
doaj   +1 more source

Mycotoxin exposure and human cancer risk : a systematic review of epidemiological studies

open access: yes, 2020
In recent years, there has been an increasing interest in investigating the carcinogenicity of mycotoxins in humans. This systematic review aims to provide an overview of data linking exposure to different mycotoxins with human cancer risk. Publications (
Castegnaro M.   +16 more
core   +2 more sources

Correcting for batch effects in case-control microbiome studies

open access: yesbioRxiv, 2018
High-throughput data generation platforms, like mass-spectrometry, microarrays, and second-generation sequencing are susceptible to batch effects due to run-to-run variation in reagents, equipment, protocols, or personnel.
S. Gibbons, C. Duvallet, E. Alm
semanticscholar   +1 more source

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