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Table 3 Comparisons of respiratory function in 2000 and 2009

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

 

2000

2009

P

a. Male

   

Age (years)

67.0 ± 7.4

75.5 ± 7.3

<.001

FEV1 (l)

2.08 ± 0.68

1.82 ± 0.60

<.001

FEV1 % predicted

76 ± 23

75 ± 23

0.43

FVC (l)

3.01 ± 0.76

2.67 ± 0.74

<.001

FVC % predicted

90 ± 21

87 ± 22

<.01

VC (l)

3.18 ± 0.73

2.84 ± 0.72

<.001

VC % predicted

98 ± 21

92 ± 21

<.001

FEV1/FVC (%)

68.7 ± 13.7

68.4 ± 13.2

0.09

b. Female

 

Age (years)

68.8 ± 7.8

77.4 ± 7.8

<.001

FEV1 (l)

1.59 ± 0.44

1.39 ± 0.46

<.001

FEV1 % predicted

93 ± 28

91 ± 23

<.01

FVC (l)

2.23 ± 0.52

1.96 ± 0.56

<.001

FVC % predicted

101 ± 21

100 ± 25

0.62

VC (l)

2.31 ± 0.54

2.04 ± 0.57

<.001

VC % predicted

105 ± 21

99 ± 24

<.001

FEV1/FVC (%)

71.3 ± 10.0

71.0 ± 11.3

0.31

  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.
  4. 2000 versus 2009: Wilcoxon signed-rank test.