Associations between total antioxidant capacity (TAC) in tertiles (T1 reference, T2, T3) at 8 years and adjusted spirometry results at 8 and 16 years: a) forced expiratory volume in 1 s (FEV1) z-score; b) forced vital capacity (FVC) z-score; c) FEV1/FVC (%). β-coefficients and 95% confidence intervals were estimated using mixed effect models (n=2115 subjects with 3306 observations), adjusted for maternal smoking during pregnancy, parental smoking during infancy, parental allergic disease, socioeconomic status, older siblings and maternal age <26 years. Totals additionally adjusted for sex.