Table 3. ORs main analyses.

		Model 1		Model 2
		OR (95% CI)	Type-III test (p-value)	OR (95% CI)	Type-III test (p-value)
GA (per increase in group)		1.09 (1.01–1.18)	0.04	0.97 (0.90–1.05)	0.44
Age in years (reference: 24–31 years)	0	1.33 (1.23–1.45)	<0.0001	1.34 (1.24–1.46)	<0.0001
	2–5	1.02 (0.94–1.10)		1.01 (0.93–1.09)
	6–11	1.05 (0.98–1.14)		1.05 (0.97–1.13)
	12–17	1.17 (1.09–1.26)		1.18 (1.09–1.26)
	18–23	0.95 (0.89–1.02)		0.95 (0.89–1.01)
Birth year (reference: 1980–1984)	1985–1989	0.96 (0.88–1.05)	<0.0001	0.96 (0.87–1.05)	<0.0001
	1990–1994	0.98 (0.89–1.06)		1.02 (0.93–1.11)
	1995–1999	1.05 (0.96–1.14)		1.21 (1.11–1.31)
	2000–2004	1.24 (1.14–1.35)		1.51 (1.38–1.64)
	2005–2009	1.89 (1.73–2.06)		2.27 (2.08–2.48)
Age * gestational age (reference: 24–31 years)	0	1.33 (1.23–1.43)	<0.0001	1.36 (1.26–1.46)	<0.0001
	2–5	1.33 (1.24–1.43)		1.36 (1.26–1.46)
	6–11	1.14 (1.06–1.22)		1.15 (1.07–1.24)
	12–17	1.04 (0.97–1.11)		1.04 (0.98–1.11)
	18–23	1.03 (0.97–1.09)		1.04 (0.98–1.10)
Birth year * gestational age (reference: 1980–1984)	1985–1989	1.02 (0.94–1.11)	0.02	1.02 (0.94–1.10)	0.001
	1990–1994	1.07 (0.99–1.16)		1.03 (0.95–1.11)
	1995–1999	1.10 (1.02–1.19)		1.11 (1.03–1.20)
	2000–2004	1.11 (1.03–1.20)		1.10 (1.02–1.19)
	2005–2009	1.12 (1.04–1.21)		1.12 (1.04–1.21)
Female sex		NA		0.72 (0.72–0.73)	<0.0001
Small for gestational age		NA		1.09 (1.06–1.12)	<0.0001
Maternal atopy medication		NA		1.37 (1.35–1.38)	<0.0001
Maternal asthma medication		NA		5.57 (5.48–5.65)	<0.0001
Maternal educational level (reference: ISCED 0–2)	ISCED 3–4	NA		1.00 (0.99–1.01)	<0.0001
	ISCED 5–8			0.94 (0.93–0.95)
Cesarean section		NA		1.13 (1.12–1.15)	<0.0001
First born		NA		1.03 (1.02–1.04)	<0.0001
Acute neonatal respiratory disease		NA		1.24 (1.21–1.28)	<0.0001
BPD		NA		1.44 (1.28–1.63)	<0.0001

Estimates are adjusted for the other variables in the model.

OR: odds-ratio

95% CI: 95% confidence interval

NA: not applicable (not included in model)

*: interaction between separate links.