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Table 1 Basic indicators of Aleppo Household Survey (AHS) participants (n = 2038), and non-smokers satisfying criteria for inclusion in the analysis (n = 1118)

From: Extent of exposure to environmental tobacco smoke (ETS) and its dose-response relation to respiratory health among adults

  All participants n (%) Non-smokers with breath CO ≤10 ppm n (%)
Age   
   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   
   Men 921 (45.2) 303 (27.1)
   Women 1117 (54.8) 815 (72.9)
Religion   
   Muslim 1938 (95.3) 1073 (96.1)
   Christian 82 (4.0) 37 (3.3)
   Other 13 (0.6) 6 (0.5)
Race   
   Arabs 1625 (79.9) 912 (81.6)
   Non-Arabs 409 (20.1) 205 (18.4)
Education   
   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