Table 2.

Lung cancer incidence in relation to menthol and nonmenthol cigarette smoking^*

Baseline smoking status, type of cigarette, cpd†	OR(95% CI)‡
Never smoker	1.0 (Referent)
Current, nonmenthol, ≥20 cpd	21.1 (12.2 to 36.5)
Current, nonmenthol, 10–19 cpd	12.9 (7.3 to 23.0)
Current, nonmenthol, <10 cpd	10.3 (5.5 to 19.3)
Current, menthol, ≥20 cpd	12.2 (7.2 to 20.8)
Current, menthol, 10–19 cpd	8.7 (5.2 to 14.7)
Current, menthol, <10 cpd	5.0 (2.9 to 8.6)
Former smoker	4.4 (2.8 to 6.9)

^*A matched nested case–control study of lung cancer incidence in relation to menthol and nonmenthol cigarette smoking. Analysis included 440 incident lung cancer case patients and 2213 individually matched control subjects after excluding 23 (5.0%) of 463 identified lung cancer case patients and 102 (4.4%) of 2315 control subjects in the final multivariable model because of incomplete data on one or more model covariates. OR = odds ratio; CI = confidence interval; cpd = cigarettes per day.

^†Self-reported smoking status at entry into the cohort.

^‡Odds ratios and 95% confidence intervals were estimated from conditional logistic regression matched on age (mostly within 1 year), sex, race (black, white, and other), and recruitment source (community health centers, general population), and adjusted for education (<9, 9–11, 12, >12 years, and college or beyond), household income (<$15,000, $15,000–$24,999, and ≥$25,000), ever use of noncigarette tobacco products (yes, no), health insurance status (yes, no), first-degree family history of lung cancer (yes, no), and body mass index (continuous).