| Type of substance use |  | |||
---|---|---|---|---|---|
Characteristics | Number (n) | Areca nut only, % | Areca + tobacco, % | Smokers only, % | p value * |
Total participants (n) | 851 | 314 (36.8) | 242 (28.4) | 295 (34.7) | Â |
Age at screening (years) | Â | Â | Â | Â | Â |
Age 16-20 | 182 | 14 | 22.31 | 28.47 | < 0.001 |
Age 21-25 | 311 | 42 | 32.64 | 33.9 | Â |
Age 26-30 | 181 | 28 | 16.12 | 18.31 | Â |
Age 31-35 | 177 | 15.9 | 28.93 | 19.32 | Â |
Education (years) | Â | Â | Â | Â | Â |
< 10 years | 112 | 7.96 | 16.94 | 15.59 | < 0.001 |
10-12 years | 490 | 57.96 | 39.67 | 71.86 | Â |
> 12 years | 249 | 34.08 | 43.39 | 12.54 | Â |
Family history of substance use | Â | Â | Â | Â | Â |
Absent | 554 | 55.1 | 33.06 | 25.76 | < 0.001 |
Present | 297 | 44.9 | 66.94 | 74.24 | Â |
Duration of use (years) | Â | Â | Â | Â | Â |
< 6 years | 467 | 44.59 | 50 | 69.83 | < 0.001 |
6-10 years | 255 | 39.49 | 22.31 | 26.1 | Â |
> 10 years | 129 | 15.92 | 27.69 | 4.07 | Â |