News glossary - NHS Choices - Your health, your choices Case-control study A case-control study is an epidemiological study that is often used to identify risk factors for a medical condition. This type of study compares a group of patients who have that condition with a group of patients that do not have it,
Case-control study - Wikipedia, the free encyclopedia A case-control study is a type of study design used widely, originally developed in epidemiology, although its use has also been advocated for the social sciences.[1][2] It is a type of observational study in which two existing groups differing in outcome
Case–Control Study, Nested - Under Construction Case–Control Study, Nested 3 the basis of the (m−1)/m relative efficiency rule [16, 58], this nested case–control study of 258 sub-jects provides 5/6 = 83% efficiency relative to an analysis of entire cohort of 21183 for testing associ-ations between single
Nested case-control study - Wikipedia, the free encyclopedia A nested case control (NCC) study is a variation of a case-control study in which only a subset of controls from the cohort are compared to the incident cases. In a case-cohort study, all incident cases in the cohort are compared to a random subset of par
EHP – Attention Deficit/Hyperactivity Disorder and Childhood Autism in Association with Prenatal Exp This EHP Advance Publication article has been peer-reviewed, revised, and accepted for publication. EHP Advance Publication articles are completely citable using the DOI number assigned to the article. This document will be replaced with the copyedited an
EHP – Autism Spectrum Disorder and Particulate Matter Air Pollution before, during, and after Pregna Autism Spectrum Disorder and Particulate Matter Air Pollution before, during, and after Pregnancy: A Nested Case–Control Analysis within the Nurses’ Health Study II Cohort ... Introduction Autism spectrum disorder (ASD) is a developmental disorder with ..
Association of Amiodarone Use With Acute Pancreatitis in Patients With Atrial Fibrillation : A Neste Letter from JAMA Internal Medicine — Association of Amiodarone Use With Acute Pancreatitis in Patients With Atrial Fibrillation — A Nested Case-Control Study ... Amiodarone hydrochloride is an antiarrhythmic drug frequently used in the treatment of atrial
Effectiveness of quadrivalent human papillomavirus vaccine for the prevention of cervical abnormalit Objective To measure the effectiveness of the quadrivalent human papillomavirus (HPV) vaccine against cervical abnormalities four years after implementation of a nationally funded vaccination programme in Queensland, Australia. Design Case-control analysi
Breast Cancer Research | Full text | Premenopausal serum androgens and breast cancer risk: a nested Study Population The NYU Women's Health Study (NYUWHS) enrolled 14,274 women 34 to 65 years old at a breast cancer screening center in New York City between 1985 and 1991 [30]. Women who had been pregnant or taken hormonal medications in the ...
Association between cardiovascular events and sodium-containing effervescent, dispersible, and solub Objective To determine whether patients taking formulations of drugs that contain sodium have a higher incidence of cardiovascular events compared with patients on non-sodium formulations of the same drugs. Design Nested case-control study. Setting UK Pri
