ONS Longitudinal study: Effect of father's ethnicity on birth weight adjusted for selected covariates^a.

aSingleton live births, all gestations. Model 1: adjusted for sex. Model 2: adjusted for sex; Mother's age in 4 categories (<25, 25–29, 30–34, ≥35years); Number of previous live births within marriage in 4 categories (0, 1, 2, ≥3); Father's Registrar General's occupational social class in 6 categories (I, II, III, IV, V, plus a residual category of ‘Other or inadequately described’) and mother's occupational social class (in 6 categories), housing tenure (owner-occupied vs. rented/on short lease), and education beyond age 18 (obtained a post-18 years qualification vs. no such qualification).