| Value | Category | Cases | |
|---|---|---|---|
| 1 | I did not chew betel nut without tobacco during the past 30 days | 2516 |
73.5%
|
| 2 | Less than once a week | 368 |
10.7%
|
| 3 | At least once a week but not every day | 328 |
9.6%
|
| 4 | Every day | 212 |
6.2%
|
| Sysmiss | 98 |