Table 3

Percent of ever smokers among all relatives, relatives reported to have a smoking related cancer, and relatives reported to have lung cancer

FatherMotherBrothersSistersSonsDaughters
CaseControlCaseControlCaseControlCaseControlCaseControlCaseControl
All65.568.731.438.965.858.641.641.242.441.437.832.2
Smoking-related cancer86.489.753.278.693.297.380.070.6100.057.1
Lung cancer91.795.068.086.496.2100.095.872.7100.0100.0