Table 3– Univariate logistic regression with vitamin D for respiratory and allergic conditions: age 6 yrs

Outcomes at age 6 yrs	Whole population			Males			Females
	Subjects n/N	OR (95% CI)	p-value	Subjects n/N	OR (95% CI)	p-value	Subjects n/N	OR (95% CI)	p-value
BHR	184/354	0.17 (0.04–0.81)	0.026	88/185	0.15 (0.02–1.15)	0.067	96/169	0.30 (0.03–3.37)	0.327
Atopy	525/989	0.79 (0.32–1.98)	0.620	309/554	0.40 (0.12–1.38)	0.147	216/435	1.59 (0.40–6.26)	0.507
HDM sensitisation	237/989	0.35 (0.12–1.01)	0.053	152/554	0.24 (0.06–0.99)	0.048	85/435	0.44 (0.08–2.30)	0.329

Actual vitamin D at age 6 yrs (in nmol·L⁻¹) was log₁₀-transformed and included in univariate logistic regression analyses for outcomes at age 6 yrs. n: total subjects in regression; N: subjects in regression with outcome; BHR: bronchial hyperresponsiveness; HDM: house dust mite.