Table 4 Children with a history of inhaled treatment within the last 48 hours and the last 12 months in 1988 and 2003.

Inhaled drug	1988 (n = 965)		2003 (n = 1146)		Difference 2003–1988 (95% CI) %
	Last 48 hours	Last 12 months	Last 48 hours	Last 12 months	Last 48 hours	Last 12 months
Short acting bronchodilator	31 (3.2%)	83 (8.6%)	75 (6.5%)	210 (18.3%)	3.3 (1.5 to 5.2)	9.7 (6.8 to 12.6)
Long acting bronchodilator	0 (0%)	0 (0%)	10 (0.9%)	14 (1.2%)	0.9 (0.3 to 1.6)	1.2 (0.6 to 2.0)
Cromolyn	13 (1.3%)	36 (3.7%)	0 (0%)	1 (0.1%)	−1.3 (−2.3 to −0.7)	−3.7 (−5.1 to −2.7)
Corticosteroid	14 (1.5%)	24 (2.5%)	72 (6.3%)	129 (11.3%)	4.8 (3.2 to 6.5)	8.8 (6.7 to 10.9)

Data shown as n (%).