Selection bias in general practice research: analysis in a cohort of pregnant Danish women

• Published in: Scandinavian journal of primary health care Vol. 38; no. 4; pp. 464 - 472
• Main Authors: Ertmann, Ruth K., Nicolaisdottir, Dagny R., Kragstrup, Jakob, Siersma, Volkert, Overbeck, Gritt, Wilson, Philip, Lutterodt, Melissa C.
• Format: Journal Article
• Language: English
• Published: United States Taylor & Francis 01.10.2020; Taylor & Francis LLC; Taylor & Francis Group
• Subjects: Family physicians; General practice; General practices; Human subjects; Medical research; participating patients; Polls & surveys; Practice research; Pregnancy; Prenatal care; Recruitment; representativity; selection; Selection bias; Uncertainty; Womens health; Denmark; participating patients; General practices; selection; representativity; pregnancy

The aim of the present study was to examine selection in a general practice-based pregnancy cohort. Survey linked to administrative register data. In spring 2015, GPs were recruited from two Danish regions. They were asked to invite all pregnant women in their practice who had their first prenatal c...