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Table 1 Characteristics of the study population

From: The prevalence of respiratory symptoms and diseases and declined lung function among foundry workers

 

Unexposed controls

(n = 161)

Current foundry workers

(n = 335)

Ex-foundry

workers

(n = 64)

p-value

Age, years

mean (SD)

44.2 (10.2)

43.9 (11.5)

61.6 (6.6)

< 0.001*a

Smoking status number (percentage)

    

current smoker

57 (35%)

132 (39%)

11 (17%)

< 0.001*b

ex-smoker

36 (22%)

93 (28%)

29 (45%)

 

never-smoker

68 (42%)

110 (33%)

24 (38%)

 

Pack-years of smoking among current smokers and ex-smokers

mean (SD)

8.4 (11.8)

10.8 (13.0)

15.1 (19.9)

0.048*a

BMI (kg/m2)

mean (SD)

26.5 (3.1)

27.3 (3.6)

28.1 (4.5)

0.016*a

  1. The results are presented as the mean value (SD) or number (%)
  2. aKruskal-Wallis test, bChi-square test
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Journal of Occupational Medicine and Toxicology

ISSN: 1745-6673