Table 4. Excess relative risk (ERR) per 100 WLM for specific cancer sites after accounting for various potential confounding factors, 1960–2003 – analyses restricted to individuals with available information on all considered confounders (n=56 278).

	ERR/WLM (95% Confidence limits)
Poisson regression model	All non-lung cancers	Stomach cancer	Larynx cancer	Liver cancer
Without adjustment	0.015 (0.006; 0.023)	0.022 (0.001; 0.043)	0.020 (−0.038; 0.078)	0.042 (−0.009; 0.092)
Adjusted for exposure to
γ-Radiation	0.016 (0.007; 0.026)	0.012 (−0.011; 0.035)	−0.009 (−0.067; 0.050)	0.041 (−0.015; 0.098)
LRN	0.016 (0.007; 0.026)	0.011 (−0.013; 0.034)	−0.018 (−0.077; 0.014)	0.047 (−0.009; 0.103)
Arsenic	0.014 (0.005; 0.024)	0.009 (−0.013; 0.031)	0.009 (−0.053; 0.072)	NC
Fine dust	0.011 (−0.0002; 0.023)	0.007 (−0.022; 0.036)	−0.033 (−0.129; 0.063)	0.022 (−0.045; 0.09)
Silica dust	0.012 (−0.005; 0.024)	0.012 (−0.018; 0.043)	−0.055 (−0.161; 0.050)	0.034 (−0.035; 0.101)

ERR/WLM=excess relative risk per working level months; NC=not calculable.