Skip to main content

Table 2 Demographic characteristics of participants

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

Variable COPD (n = 68) Normal lung function (n = 457) P
Male gender, n (%) 47 (69.1%) 311 (68.1%) 1.000
Age in years, mean ± SD 52 (±SD 8.8) 49.2 (SD 7.7) 0.006
Nationality, n (%)    0.488
 UAE 9 (13.2%) 79 (17.3%)
 Other 59 (86.8%) 378 (82.7%)
Height in cm, mean ± SD 164.9 (±SD 8.6) 164.82 (±SD 8.7) 0.890
Weight in kg, mean ± SD 76.3 (±SD 12.9) 77 (±SD15.4) 0.737
BMI in kg/m2, mean ± SD 28.4 (±SD 4.6) 28.4 (±SD 4.7) 0.902
Education, n (%)    0.397
 Primary 34 (50.0%) 231 (50.5%)
 Diploma 3 (4.4%) 24 (5.3%)
 College 30 (44.1%) 174 (38.1%)
 Higher Education 1 (1.5%) 28 (6.1%)
Any smoking, n (%) 17 (25.0%) 111 (24.3%) 0.881
Cigarette smoking    
 Smokers, n (%) 18 (26.4%) 115 (25.2%) 1.000
 Number of cigarettes/day, mean ± SD 14.4(±SD 11) 12 (±SD 10.4) 0.493
Midwakh smokers, n (%) 0 (0.0%) 1 (0.3%) 1.000
Water pipe smoking    
 Smokers, n (%) 1 (3.4%) 13 (3.9%) 1.000
 Heads of waterpipe/month, mean ± SD 4.1 (±SD 22.3) 1.1 (±SD 7.5) 0.098
Other Smoking    
Smokers, n (%) 1 (3.4%) 3 (0.9%) 0.294
Other tobacco per week, mean ± SD 0.9 (±SD 5.1) 0.2 (±SD 1.9) 0.082
Exposure to domestic biomass and coal pollution (cooking/heating), n (%) 12 (17.6%) 52 (11.4%) 0.162
Occupational exposure to dust, n (%) 26 (38.2%) 102 (22.3%) 0.006
Hospital admissions due to pulmonary problems in childhood, n (%) 4 (5.9%) 20 (4.4%) 0.536
\