Agreement between self-reported and researcher-measured height, weight and blood pressure measurements for online prescription of the combined oral contraceptive pill: an observational study.

ABSTRACT:

Objectives

To compare agreement between self-reported height, weight and blood pressure measurements submitted to an online contraceptive service with researcher-measured values and document strategies used for self-reporting.

Design

An observational study.

Setting

An online sexual health service which provided the combined oral contraceptive pill, free of charge, to users in Southeast London, England.

Participants

Between August 2017 and August 2019, 365 participants were recruited.

Primary and secondary outcome measures

The primary outcome, for which the study was powered, was the agreement between self-reported and researcher-measured body mass index (BMI) and blood pressure measurements, compared using kappa coefficients. Secondary measures of agreem

SUBMITTER: McCulloch H 

PROVIDER: S-EPMC9131065 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature