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Table 5 Usefulness of peak expiratory flow rate (PEFR) for COPD screening

From: Case-finding of chronic obstructive pulmonary disease with questionnaire, peak flow measurements and spirometry: a cross-sectional study

Variable

PEFR < 2.2 L.s-1.m-2(n = 50)

PEFR ≥ 2.2 L.s-1.m-2(n = 18)

P

Male gender, n (%)

33 (66.0%)

13 (76.5%)

0.550

Age in years, mean ± SD

52.7 (SD 9.3)

50.5 (±SD 7.4)

0.393

Smoker, n (%)

12 (24.0%)

5 (29.4%)

0.749

Height in cm, mean ± SD

164.4 (±SD 8.8)

165.2 (±SD 5.6)

0.723