|  |  |  | Duration of mentholated cigarette use (years) | ||||
---|---|---|---|---|---|---|---|---|
 |  |  |  | 0 | 1-9 | 10-19 | 20+ | Any |
Gender | Age | No. of casesa | Adjusted | RR | RR (CI) | RR (CI) | RR (CI) | RR (CI) |
Male | < 50 | 6 (3) | No | 1.0 | - | - | - | 2.2 (0.5-11.1) |
 | 50-64 | 82 (24) | No | 1.0 | - | - | - | 1.1 (0.7-1.8) |
 | 65-74 | 60 (22) | No | 1.0 | - | - | - | 1.7 (1.0-2.9) |
 | 75+ | 20 (6) | No | 1.0 | - | - | - | 1.7 (0.6-4.3) |
 | All | 168 (55) | Ageb | 1.00 | - | - | - | 1.40 (1.01-1.94) |
 | All | 160 (51)c | Age, othersd | 1.00 | - | - | - | 1.45 (1.03-2.02) |
 | All | 158 (57)e | Age, othersd | 1.00 | 1.10 (0.65-1.87) | 1.32 (0.84-2.08) | 1.59 (0.96-2.63) | - |
Female | < 50 | 11 (2) | No | 1.0 | - | - | - | 0.3 (0.1-1.6) |
 | 50-64 | 61 (19) | No | 1.0 | - | - | - | 0.8 (0.5-1.4) |
 | 65-74 | 50 (10) | No | 1.0 | - | - | - | 0.6 (0.3-1.1) |
 | 75+ | 28 (7) | No | 1.0 | - | - | - | 0.9 (0.4-2.1) |
 | All | 150 (38) | Ageb | 1.00 | - | - | - | 0.71 (0.50-1.00) |
 | All | 138 (34)c | Age, othersd | 1.00 | - | - | - | 0.75 (0.51-1.11) |
 | All | 132 (42)c | Age, othersd | 1.00 | 0.72 (0.38-1.39) | 1.01 (0.61-1.69) | 0.70 (0.40-1.23) | - |
Combined | < 50 | 17 (5) | Genderb | 1.00 | - | - | - | 0.73 (0.26-2.04) |
 | 50-64 | 143 (43) | Genderb | 1.00 | - | - | - | 0.95 (0.67-1.35) |
 | 65-74 | 110 (32) | Genderb | 1.00 | - | - | - | 1.12 (0.74-1.69) |
 | 75+ | 48 (13) | Genderb | 1.00 | - | - | - | 1.17 (0.62-2.21) |
 | All | 318 (93) | Gender, ageb | 1.00 | - | - | - | 1.02 (0.80-1.29) |
 | All | 298 (85)c | Gender, age, othersb,d | 1.00 | - | - | - | 1.09 (0.85-1.41) |
 | All | 290 (99)c | Gender, age, othersb,d | 1.00 | 0.93 (0.62-1.40) | 1.17 (0.84-1.65) | 1.10 (0.76-1.60) | - |