Body mass index, body dissatisfaction and adolescent smoking initiation.

ABSTRACT:

Background

Smoking influences body weight, but there is little evidence as to whether body mass index (BMI) and body dissatisfaction increase smoking initiation in adolescents.

Methods

We evaluated the association between measured BMI, body dissatisfaction and latent classes of smoking initiation (never smokers, experimenters, late onset regular smokers, early onset regular smokers) in the Avon Longitudinal Study of Parents and Children. In observational analyses we used BMI (N=3754) and body dissatisfaction at age 10.5 years (N=3349). In Mendelian randomisation (MR) analysis, we used a BMI genetic risk score of 76 single nucleotide polymorphisms (N=4017).

Results

In females, higher BMI was associated with increased odds of early onset regular smoking (OR: 1.11, 95% C

SUBMITTER: Howe LJ 

PROVIDER: S-EPMC5558147 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature