Table 4– Risk for asthma in children with respiratory problems in the neonatal period

Group of children	With asthma	Total number	OR (95% CI)
Respiratory diagnosis
Mechanical ventilation or CPAP	2762	29827	1.33 (1.26–1.39)
No mechanical ventilation or CPAP	2276	25921	1.32 (1.26–1.39)
CPAP	419	3508	1.22 (1.07–1.39)
Mechanical ventilation	126	710	1.85 (1.44–2.31)
Bronchopulmonary dysplasia	39	176	1.97 (1.12–3.47)

Data are presented as n, unless otherwise stated. Data are shown after adjustment for year of birth, maternal age, parity, smoking in early pregnancy, maternal body mass index and gestational duration (groups as in tables 1] and 3]). Children with asthma (five or more prescriptions) n = 43,387, total children n = 765,792. CPAP: continuous positive airway pressure.