Statistic

FVC in Litre^a

FEV1 in Litre^b

FEV1%

PEFR in Litre/second^c

Mean (SD)

3.92 ± 0.44

2.68 ± 0.71

68.94 ± 17.46

6.85 ± 1.09

Minimum

2.28

0.92

21

4.49

Maximum

5.68

4.02

97

9.13