Table 3: Relative risks of cancers for current and former active tobacco and passive tobacco exposure
Exposure; cancer sitePeriod of exposureRR (95% CI)
MenWomenAll
Active tobacco
Lung*Current9.9 (6.8-14.2)7.6 (5.4-10.7)9.0 (6.70-12.1)
Former--3.8 (2.8-5.3)
Oral cavity and pharynx*Current--3.6 (2.6-4.8)
Former--1.2 (0.7-1.9)
Larynx*Current--7.0 (3.1-15.5)
Former--4.6 (3.4-6.4)
Esophagus*Current2.52 (1.8-3.5)2.3 (1.5-3.4)2.5 (2.0-3.1)
Former--2.0 (1.8-2.3)
Stomach*Current1.7 (1.5-2.1)1.4 (1.2-1.8)1.6 (1.4-2.0)
Former--1.3 (1.2-1.5)
Liver*Current1.8 (1.2-2.8)1.5 (1.1-2.0)1.6 (1.3-1.9)
Former--1.5 (1.1-2.1)
Pancreas*Current1.6 (1.3-2.0)1.7 (1.3-2.3)1.7 (1.5-1.9)
Former--1.2 (1.0-1.3)
Colon-rectum†Current1.4 (1.2-1.6)1.1 (1.0-1.1)1.2 (1.1-1.3)
Former1.2 (1.1-1.4)1.2 (1.1-1.3)1.2 (1.1-1.2)
Ovary‡Current-1.1 (1.0-1.1)-
Former-1.1(1.0-1.1)-
Cervix*Current-2.2 (1.1-4.4)-
Former-1.3 (1.1-1.4)-
Kidney*Current1.6 (1.3-1.9)1.4 (1.0-1.7)1.5 (1.3-1.7)
Former--1.2 (1.1-1.4)
Myeloid leukemia*Current--1.1 (0.7-1.7)
Former--1.3 (0.3-5.8)
Bladder*Current2.8 (2.0-3.9)2.7 (1.8-4.1)2.8 (2.2-3.5)
Former--1.7 (1.5-2.0)
Passive tobacco
Lung§Ever exposed--1.34 (1.24-1.45)

Note: CI = confidence interval, RR = relative risk.

*Estimates from Gandini and colleagues.43

†Estimates from Tsoi and colleagues.19

‡Estimates from the Collaborative Group on Epidemiological Studies of Ovarian Cancer.44

§Estimates from Kim and colleagues.4