4.

按吸烟量分层后肺癌调整危险比与累积氡暴露量的相关分析

Relation of cumulative radon exposure to lung cancer risk by smoking

Smoking status	Cumulative radon exposure (WLM)	Adjusted HR (95%CI)
Never	No	1.00
	≤118.44	5.75 (1.26-26.12)
	> 118.44	11.66 (3.24-42.05)
≤43.7 pks	No	2.89 (0.77-10.89)
	≤118.44	11.73 (3.58-38.46)
	> 118.44	15.32 (4.79-49.02)
> 43.7 pys	No	1.56 (0.39-6.25)
	≤118.44	10.19 (2.06-34.00)
	> 118.44	17.15 (5.33-55.16)