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Table 1 Clinical characteristics of the study population

From: Is arginase a potential drug target in tobacco-induced pulmonary endothelial dysfunction?

Characteristics Smokers Never-smokers p
  (n = 29) (n = 10)  
Age, years (median, range) 63 (44–78) 55 (49–73) 0.11
Male:female ratio 23:6 7:3 0.16
Tobacco, pack-years (mean, range) 48 (10–120) NA  
Current smokers (n=) 15 NA  
FEV1, % predicted (mean, range) 88 (66–118) 92 (82–103) 0.33
OLD (n=) 2 0 1
  1. NA: not appliable; FEV1: forced expiratory volume in 1 second; OLD: presence of an obstructive pulmonary disease, defined as post-bronchodilator FEV1/forced vital capacity < 70%.