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Table 1 Characteristics of participants

From: Effects of air pollution and seasons on health-related quality of life of Mongolian adults living in Ulaanbaatar: cross-sectional studies

N = 666

Characteristics

  

Smoke-rich fuel user

 Gender

N

%

N

%

  Overall

666

100

403

61.9

  Male

242

36.3

155

65.4

  Female

424

63.7

248

59.9

 Age (years)

  Overall (mean ± SD)

54.0 ± 10.0

-

  Smoke-rich fuel user

53.3 ± 9.5

-

  Smoke-free fuel user

55.3 ± 10.7

-

 BMI (kg/m2)

  Overall (mean ± SD)

27.6 ± 5.1

-

  Smoke-rich fuel user

27.7 ± 5.2

-

  Smoke-free fuel user

27.7 ± 4.9

-

 Smoking status

N

%

N

%

  Never-smoker

447

67.1

257

59.4

  Ex-smoker

45

6.8

28

63.4

  Current smoker

174

26.1

118

67.8

 Time spent outdoors (hours)

  Overall (mean ± SD)

6.0 ± 4.9

-

  Smoke-rich fuel user

6.0 ± 5.0

-

  Smoke-free fuel user

6.2 ± 4.7

-

 Prevalence

N

%

N

%

  Ventilatory impairment

164

24.6

97

61.0

  Self-reported asthma

146

22.3

97

68.3