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Table 2 Patient characteristics at the time of certification

From: Longitudinal study of respiratory function and symptoms in a non-smoking group of long-term officially-acknowledged victims of pollution-related illness

 

Male (n = 156)

Female (n = 407)

P

Age (years)

49.6 ± 8.5

51.4 ± 8.9

<.05

Chronic bronchitis

88 (56.4%)

271 (66.6%)

0.395

Asthma

66 (42.3%)

135 (33.2%)

Emphysema

2 (1.3%)

1 (0.2%)

FEV1 (l)

2.51 ± 0.75

1.93 ± 0.50

<.001

FEV1 % predicted

77 ± 21

89 ± 21

<.001

FVC (l)

3.50 ± 0.77

2.59 ± 0.52

<.001

FVC % predicted

91 ± 17

100 ± 16

<.01

VC (l)

3.67 ± 0.74

2.71 ± 0.51

<.001

VC % predicted

102 ± 18

108 ± 17

<.01

FEV1/FVC (%)

71.4 ± 14.8

74.5 ± 10.9

<.05

Dyspnea

32 (20.5%)

79 (19.4%)

0.361

 

91 (58.3%)

266 (65.4%)

 

28 (17.9%)

53 (13.0%)

 

3 (1.9%)

5 (1.2%)

 

1 (0.6%)

0 (0%)

Wheeze

47 (30.1%)

161 (39.6%)

<.05

 

59 (37.8%)

156 (38.3%)

 

40 (25.6%)

75 (18.4%)

 

8 (5.1%)

13 (3.2%)

 

1 (0.6%)

1 (0.2%)

Cough and sputum

13 (8.3%)

24 (5.9%)

0.623

 

87 (55.8%)

228 (56.0%)

 

49 (31.4%)

144 (35.4%)

 

6 (3.8%)

8 (2.0%)

 

1 (0.6%)

1 (0.2%)

 
  1. FEV 1 forced expiratory volume in 1 second, FVC forced vital capacity, VC vital capacity,
  2. FEV 1/FVC (%) forced expiratory volume in 1 second.
  3. Values are presented as mean ± standard deviation or number (%).
  4. Male versus female: Mann–Whitney U test, Kruskal Wallis test.
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BMC Public Health

ISSN: 1471-2458

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