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Table 1 Age, gender, smoking, environmental tobacco smoke and occupational irritants of the studied population

From: Smoking, environmental tobacco smoke and occupational irritants increase the risk of chronic rhinitis

  All Men Women
N (%) 3488 1491(42.7%) 1997(57.3%)
Mean (SD) age, years 45.0(14.7) 45.3(14.4) 44.9(14.9)
Age 20–29 643(18.4%) 246(16.5%) 397(19.9%)
 30–39 785(22.5%) 361(24.2%) 424(21.2%)
 40–49 564(16.2%) 249(16.7%) 315(15.8%)
 50–59 712(20.4%) 305(20.5%) 407(20.4%)
 60–69 740(21.2%) 314(21.1%) 426(21.3%)
Smokers 929 (26.6%) 464(31.1%) 465(23.3%)
Ex-smokers 907(26.0%) 425(28.5%) 482(24.1%)
Non-smokers 1764(50.6%) 659(44.2%) 1105(55.3%)
Exposure to tobacco smoke at work 326(9.3%) 169(11.3%) 157(7.9%)
Exposure to tobacco smoke at home 358(10.3%) 170(11.4%) 188(9.4%)
Exposure to occupational irritants 934(26.8%) 479(32.1%) 455(22.8%)
  1. Age, gender, smoking and exposure characteristics of the studied population. Occupational irritants = exposure to gases, dust or fumes at work. The figures indicate the number of subjects except age groups indicated in years