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Table 1 Distribution of Respondents According to Demographic Characteristics in Khuzestanb

From: Prevalence of asthma and other allergic conditions in adults in Khuzestan, southwest Iran, 2018

Variable Class N Weighted % 95% CI
Gender Male 2882 50.7 49.8 51.6
Female 2826 49.3 48.4 50.2
Age 20–29 years 2262 39.6 39.0 40.2
30–44 years 2256 39.4 38.8 40.0
45–65 years 1190 21.0 20.2 21.8
Education level a Illiterate 313 5.7 4.6 6.8
Low 1585 29.1 26.4 31.8
Moderate 2056 37.9 36.2 39.7
High 1460 27.2 24.0 30.4
Marital status Married 3487 62.0 60.2 63.9
Single 2077 36.9 35.0 38.8
Divorced 19 0.4 0.2 0.6
Widow/widower 41 0.7 0.5 1.0
Region Urban 5013 87.4 81.9 92.9
Rural 695 12.6 7.1 18.1
Employment status Employed 1483 53.2 50.6 55.7
Unemployed 1327 46.8 44.3 49.4
Active smokers Yes 882 15.7 13.5 17.9
No 4775 84.3 82.1 86.5
Passive smokers Yes 3292 58.1 52.9 63.4
No 2363 41.9 36.6 47.1
  1. a: Low educational level (primary school & middle school), moderate educational level (high school and associated degree), and high educational level (bachelor, master and doctorate degree)
  2. b: n may not total to 5708 in some variables due to non-response
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