Fig. 1From: Reproductive factors and risk of lung cancer among 300,000 Chinese female never-smokers: evidence from the China Kadoorie Biobank studyRelative risks of lung cancer associated with reproductive factors. Models were adjusted for age, study area, occupation, education, log-height, log-weight, physical activity, family history of any cancer, personal history of lung disease, alcohol drinking, frequency of environmental tobacco smoke exposure, heating fuel during winter and cooking fuel. *Relevent to never usersBack to article page