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Table 1 General characteristics of firefighters and non-firefighters

From: Pulmonary function decline in firefighters and non-firefighters in South Korea

Variables

Firefighters (n = 322)

Non-firefighters (n = 107)

p

Character

Mean

SD*

Mean

SD

p

Age (years)

43.6

6.9

44.1

10.1

0.645

Height (cm)

172.3

4.7

167.8

6.3

< 0.001

Weight (kg)

72.1

8.0

65.1

9.1

< 0.001

Waist circumference (cm)

84.3

5.1

79.7

5.0

< 0.001

Body mass index (kg/m2)

24.2

2.2

23.0

2.6

< 0.001

Exposure (years)

6.1

7.8

9.0

7.6

0.001

Weight change (kg)

0.8

3.3

0.3

2.9

0.185

 

n

%

n

%

 

Physical activity (times/week)

     

  < 3

95

29.5

61

58.1

< 0.001

  ≥3

227

70.5

44

41.9

< 0.001

Smoking

     

  Yes

38

11.8

45

42.9

< 0.001

  No

284

88.2

60

57.1

< 0.001

  1. *SD standard deviation.