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Table 4 Multiple linear regression model for percentage cross-shift change in PEF (ΔPEF%) among 50 male cement workers

From: Cement dust exposure and acute lung function: A cross shift study

 

Covariates

B

SE

p

95%CI

ΔPEF%

Constant

5.46

2.19

0.016

1.05, 9.87

 

Years in high-exposed section

-0.80

0.37

0.036

-1.55, -0.05

 

Current smoking (0/1)

-6.60

4.45

0.144

-15.53, 2.33

 

Log-"total" dust (mg/m3)

-1.62

0.73

0.032

-3.09, -0.15

  1. ΔPEF% = [(postshift PEF - preshift PEF)/preshift PEF] times 100. B: regression coefficient. SE: standard error of regression coefficient. 95% CI: 95% confidence interval.