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Table 6 Garshick et al. [3]: Linear regression with fixed effects for log RR with weights proportional to the inverse of the respective variance

From: Diesel engine exhaust and lung cancer risks – evaluation of the meta-analysis by Vermeulen et al. 2014

log RR

Coef.

Std. Err.

t

P

95 % CI

Dose

0.00061

0.000091

6.6

0.095 (<0.001)

−0.00055 (0.00042

0.00177 0.00078)

Constant

0.244

0.013

18.6

0.034

0.078

0.411

Garshick (modified)

Dose

0.00005

0.00007

0.75

0.59 (0.45)

−0.00077 (−0.00008

0.00087 0.00017)

Constant

0.159

0.009

16.87

0.038

0.039

0.279

  1. Coefficient (Coef.) of the cumulative exposure (Dose) to DEE in μg/m3-years and absolute term (Constant) with standard deviation (Std.Err.); t-test statistic for the coefficient with the corresponding P-value and a 95 % confidence interval for the coefficient, 95 % CI. The figures in parentheses are the results when using the standard normal distribution. Garshick et al. [3] as used by Vermeulen et al. [1], and Garshick et al. [3] (modified) were evaluated