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Table 13 Risk of lung cancer according to mentholated cigarette use - Houston case-control study [85]

From: Systematic review of the epidemiological evidence comparing lung cancer risk in smokers of mentholated and unmentholated cigarettes

Smoking habits Cases Adjusted RR (CI)
Current smokers 278 Nonea 0.63 (0.43-0.93)
   Age, gender 0.69 (0.46-1.03)
Former smokers 176 Nonea 0.76 (0.50-1.17)
   Age, gender 0.99 (0.62-1.56)
Current and former smokers 454 Nonea 0.72 (0.54-0.95)
   Smoking statusa 0.69 (0.52-0.91)
   Age, gender, smoking statusa 0.81 (0.60-1.09)
  1. a RRs and CIs were derived as described in additional file 1: Methods for deriving RR estimates.