Table 1 Basic indicators of Aleppo Household Survey (AHS) participants (n = 2038), and non-smokers satisfying criteria for inclusion in the analysis (n = 1118)
|  | All participants n (%) | Non-smokers with breath CO ≤10 ppm n (%) |
|---|---|---|
Age | Â | Â |
   18–29 years | 736 (36.1) | 450 (40.3) |
   30–45 years | 874 (42.9) | 418 (37.4) |
   46–65 years | 428 (21.0) | 250 (22.4) |
Gender | Â | Â |
   Men | 921 (45.2) | 303 (27.1) |
   Women | 1117 (54.8) | 815 (72.9) |
Religion | Â | Â |
   Muslim | 1938 (95.3) | 1073 (96.1) |
   Christian | 82 (4.0) | 37 (3.3) |
   Other | 13 (0.6) | 6 (0.5) |
Race | Â | Â |
   Arabs | 1625 (79.9) | 912 (81.6) |
   Non-Arabs | 409 (20.1) | 205 (18.4) |
Education | Â | Â |
   Illiterate | 425 (20.9) | 257 (23.0) |
   ≤ 9 years | 1131 (55.5) | 578 (51.7) |
   > 9 years | 482 (23.7) | 283 (25.3) |
|  | mean ± SD | mean ± SD |
Total number of people in the household | 6.5 ± 3.3 | 6.7 ± 3.2 |
   Adults | 3.3 ± 1.8 | 3.5 ± 1.9 |
   Children | 3.2 ± 2.5 | 3.2 ± 2.5 |
Household density (household/rooms) | 2.2 ± 1.3 | 2.2 ± 1.3 |
Total SES score | 4.3 ± 2.0 | 4.0 ± 2.0 |