Table 3.

Cumulative incidence of respiratory infections diagnosed by a physician in the follow-up grouped by the age of children and medical diagnosis of asthma (in brackets 95% confidence intervals)

	Asthma (−)	Asthma (+)	Total
Bronchitis
Age 1 – 3 yrs	0.75(0.65–0.87)	1.60(1.19–2.10)	0.85(0.74–0.96)
Age 4 – 7 yrs	1.05(0.92–1.19)	2.19(1.71–2.76)	1.17(1.04–1.30)
Age 1 – 7 yrs	1.80(1.63–1.98)	3.79(3.14–4.51)	2.02(1.86–2.19)
Pneumonia
Age 1 – 3 yrs	0.21 (0.15–0.27)	0.56(0.33–0.89)	0.25(1.19–0.31)
Age 4 – 7 yrs	0.25(0.20–0.33)	0.90(0.61–1.30)	0.32(0.26–0.40)
Age 1–7 yrs	0.46(0.38–0.55)	1.47(1.08–1.92)	0.57(0.48–0.66)