Skip to main content

Table 1 Participant characteristics and pulmonary function test results of 644 non-smoking women categorized by physician diagnosed and ATS criteria

From: Exposure to cooking oil fumes and chronic bronchitis in nonsmoking women aged 40 years and over: a health-care based study

Variables

Definite chronic bronchitis (N = 53)

Probably chronic bronchitis (N = 285)

No pulmonary disease (N = 306)

p-value

Mean ± SD or N (%)

 Age (yrs)

61.9 ± 9.4

63.3 ± 8.8

63.3 ± 9.2

0.558

 Height (cm)

155.1 ± 6.1

155.6 ± 5.7

155.1 ± 5.4

0.494

 Weight (kg)

57.3 ± 13.0

58.6 ± 8.6

59.1 ± 8.6

0.392

 BMI

23.8 ± 5.4

24.2 ± 3.3

24.6 ± 3.4

0.216

Pulmonary function test

 FEV1 (L)a

1.47 ± 0.45

1.53 ± 0.44

1.62 ± 0.47

0.012

 FVC (L)a

1.85 ± 0.55

1.91 ± 0.55

1.92 ± 0.58

0.720

 FEV1/FVC (%)a

80.5 ± 13.5

81.0 ± 14.7

86.0 ± 14.4

<  0.0001

Education levelsb

 ≥ junior high school

10 (18.9)

52 (18.3)

44 (14.4)

0.343

 primary school

25 (47.2)

138 (48.4)

172 (56.4)

 

 illiteracy

18 (34.0)

95 (33.3)

89 (29.2)

 

Smoking status

 Non-smoker

4 (7.6)

79 (27.7)

106 (34.6)

0.0002

 Second-hand smoker

49 (92.5)

206 (72.3)

200 (65.4)

 

Tea consumption

 No

50 (94.3)

241 (84.6)

236 (77.1)

0.003

 Yes

3 (5.7)

44 (15.4)

70 (22.9)

 

Burning incense

 No

15 (28.3)

112 (39.3)

120 (39.2)

0.291

 Yes

38 (71.7)

173 (60.7)

186 (60.8)

 
  1. ATS American Thoracic Society; BMI body mass index; FEV1 forced expiratory volume in 1st second; FVC forced vital capacity; SD standard deviation
  2. aMissing data = 7 (3, 3, 1)
  3. bMissing data = 1 (0, 0, 1)