Representativeness and optimal use of body mass index (BMI) in the UK Clinical Practice Research Datalink (CPRD).

ABSTRACT:

Objectives

To assess the completeness and representativeness of body mass index (BMI) data in the Clinical Practice Research Datalink (CPRD), and determine an optimal strategy for their use.

Design

Descriptive study.

Setting

Electronic healthcare records from primary care.

Participants

A million patient random sample from the UK CPRD primary care database, aged ≥16 years.

Primary and secondary outcome measures

BMI completeness in CPRD was evaluated by age, sex and calendar period. CPRD-based summary BMI statistics for each calendar year (2003-2010) were age-standardised and sex-standardised and compared with equivalent statistics from the Health Survey for England (HSE).

Results

BMI completeness increased over calendar time from 37% in 1990-1994 t

SUBMITTER: Bhaskaran K 

PROVIDER: S-EPMC3773634 | biostudies-literature | 2013 Sep

REPOSITORIES: biostudies-literature