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. 2018 Jul 24;15(8):1563. doi: 10.3390/ijerph15081563

Table 5.

Two models of Cox regression analysis for recurrence (hazard ratio (HR), 95% confidence interval (95%CI) and p-value) including only occupational exposure to PAHs (Model 1) or aromatic amines (Model 2).

Occupational Exposure to: HR 95%CI p-Value
Model 1
PAHs § 1.077 0.701 to 1.654 0.735
Model 2
Aromatic amines § 1.129 0.743 to 1.743 0.569

§ Dichotomous variables: occupational exposure absent or present.