From: Prevalence of smoking and chronic obstructive pulmonary disease amongst teachers working in Kocaeli, TurkeyPrevalenza di tabagismo e bronchite cronica ostruttiva tra gli insegnanti di Kocaeli, Turchia
Total
Female
Male
P
FVC (% pred.)
102.4 ± 13.9
102.7 ± 13.5
102.1 ± 14.2
0.6
FEV1 (% pred.)
99.8 ± 14.1
98.6 ± 13.3
100.9 ± 14.6
0.03
FEV1/FVC (%)
101.4 ± 10.3
100.5 ± 9.4
101.5 ± 11
0.1
FEF25-75 (% pred.)
89.6 ± 24.3
83.6 ± 20.7
94.4 ± 25.9
0.001