Prospective association of unadjusted (for season) 25(OH)D₃ concentrations (assessed at mean age 9.9 years) with psychotic experiences (PLIKS) (assessed at age 12.8 years). N = 3182 (208 cases with suspected/definite PLIKS) and N = 2974 (142 cases with definite PLIKS; in these analyses s

Model 1 is unadjusted (25(OH)D3 is adjusted for age and gender). Model 2 as Model 1 plus adjustment for ethnicity, time spent outdoors during summer (age 8.5 years), use of sunblock, hat, covering clothing, avoidance of midday sun and BMI. Model 3 as Model 2 plus adjustment for head of household social class, mother’s and partner’s education, family history of mental health problems and puberty stage. Model 4 as Model 3 plus adjustment for 25(OH)D2, phosphate, albumin-adjusted calcium and parathyroid hormone.