Research Article
Smoking, Alcohol, and Betel Quid and Oral Cancer: A Prospective Cohort Study
Table 1
Descriptive and bivariate analyses of the studied population.
| | Variables | No. of patients
(% in column)
() | Oral cavity cancer* | value | | Yes | No | | No. of patients (%) | No. of patients (%) |
| | Age | | | | | | 18–39 years | 2368 (22.2%) | 17 (0.7%) | 2314 (99.3%) | <.001 | | 40–49 years | 1879 (17.6%) | 61 (3.3%) | 1777 (96.7%) | | 50–59 years | 2118 (19.9%) | 94 (4.5%) | 1977 (95.5%) | | ≥60 years | 4292 (40.3%) | 58 (1.4%) | 4189 (98.6%) | | Habitual smoker | | | | | | Yes | 2268 (21.3%) | 174 (8.0%) | 1993 (92.0%) | <.001 | | No | 8389 (78.7%) | 56 (0.7%) | 8264 (99.3%) | | Habitual drinker | | | | | | Yes | 1569 (14.7%) | 138 (9.2%) | 1356 (90.8%) | <.001 | | No | 9088 (85.3%) | 92 (1.0%) | 8901 (99.0%) | | Habitual betel quid chewer | | | | | | Yes | 758 (7.1%) | 126 (18.3%) | 564 (81.7%) | <.001 | | No | 9899 (92.9%) | 104 (1.1%) | 9693 (98.9%) | | Abnormal mucosa lesion | | | | | | Yes | 514 (4.8%) | 230 (66.9%) | 114 (33.1%) | <.001 | | No | 7974 (95.2%) | 0 (0%) | 10143 (100%) |
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*Those with abnormal mucosa lesions but no further biopsy were excluded ().
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