Table 1.

Characteristics of students with wheeze in control and intervention groups. Values are numbers (percentages) unless stated otherwise

	Control group (n=138)			Intervention group (n=113)
	Year 7	Year 10		Year 7	Year 10
No of students	71	67		47	66
Female	31 (44)	32 (48)		29 (62)	45 (68)
Mean age (years)	12.5	15.5		12.5	15.5
Asthma diagnosed by doctor	51 (72)	46 (69)		39 (83)	53 (80)
Mean percentage predicted change in forced expiratory volume in one second	99.2	105.7		101.8	105.3
Mean percentage change in forced expiratory volume in one second:forced vital capacity	89	89.4		89.3	89.8
Mean (SD) total quality of life score	5.7 (1.3)	5.5 (1.3)		5.1 (1.5)	5.4 (1.2)
Taking inhaled corticosteroids	25 (35)	20 (30)		18 (38)	28 (42)
Taking bronchodilator alone	18 (25)	20 (30)		15 (32)	20 (30)
Taking asthma drugs	43 (61)	40 (60)		33 (70)	48 (73)