Table 2– Pulmonary function

	PEFR L·min⁻¹		FEV₁ % pred
	Control	Mobile telephone	Control	Mobile telephone
Subjects	46	43	46	43
Baseline	350.1±7.8	352.2±10.3	58.2±3.1	57.9±3.0
1 month	348.9±7.2	357.6±10.0
2 months	351.1±7.2	364.3±9.7
3 months	353.9±7.9	376.3±9.2*	60.0±3.3	63.7±2.9**
4 months	350.4±7.4	378.2±9.3*^,#
5 months	346.8±7.2	378.2±9.2*^,#
6 months	343.5±7.7	382.7±8.6*^,#	56.5±2.8	65.2±3.2**^,#

Data are presented as n or mean±sem. PEFR: peak expiratory flow rate; FEV₁: forced expiratory volume in 1 s; % pred: % predicted. *: p<0.05 compared with baseline; **: p<0.01 compared with baseline; ^#: p<0.05 for control group versus mobile telephone group.