Table 1 Demographic and respiratory health characteristics of the study population (N = 576)
Men‡ | Women‡ | |
|---|---|---|
Total number | 280 (100%) | 296 (100%) |
Age 20 to 44 years | 135 (48.2%) | 145 (49.0%) |
Age 45 to 70 years | 145 (51.8%) | 151 (51.0%) |
Current smokers | 145 (51.8%) | 62 (20.9%) |
Ex-smokers | 76 (27.1%) | 31 (10.5%) |
Never smokers | 59 (21.1%) | 203 (68.6%) |
Chronic cough* | 69 (24.6%) | 24 (8.1%) |
Chronic phlegm* | 59 (21.1%) | 10 (3.4%) |
Wheezing during the last year | 127 (45.4%) | 93 (31.4%) |
Wheezing apart from cold | 92 (32.9%) | 38 (12.8%) |
Persistent wheezing† | 32 (11.4%) | 18 (6.1%) |
Standing height (m)▫ | 1.70 (0.08) | 1.57 (0.07) |
FEV1 (L)▫ | 3.50 (0.88) | 2.65 (0.59) |
FEV1 to FVC ratio (%)▫ | 75.5 (9.2) | 79.1 (6.5) |
MMEF (L/s)▫ | 3.29 (1.46) | 2.81 (0.95) |
FEV1 <80% of predicted▫ | 42 (16.7%) | 21 (8.5%) |
FEV1 to FVC ratio <70%▫ | 49 (19.5%) | 24 (9.8%) |
FEV1<80% of predicted and FEV1/FVC<70%▫ | 26 (10.4%) | 10 (4.1%) |