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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
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