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Table 1 General characteristics of the population (n = 681)

From: Sensitivity of the COPD assessment test (CAT questionnaire) investigated in a population of 681 consecutive patients referring to a lung clinic: the first Italian specific study

  Population Men Women
n. 681 480 201
Age (mean, years) 72.3 ± 9.6 sd 72.9 ± 9.1 sd 70.8 ± 10.4 sd
Origin (%)    
North 36.4% 71.8% 28.2%
Center 30.7% 73.4% 26.8%
South + Islands 32.9% 75.9% 24.1%
Smoking    
smokers (%) 14.5% 13.1% 17.9%
no. of pack/years 29.3 ± 27.6 sd 35.4 ± 28.0 sd 15.1 ± 20.3 sd
ex-smokers (%) 63.9% 75.7% 35.8%
non-smokers (%) 21.6% 11.2% 46.3%
BMI 29.1 ± 5.0 sd 29.3 ± 4.6 sd 28.7 ± 5.9 sd