| Value | Category | Cases | |
|---|---|---|---|
| 1 | I did not chew betel nut with tobacco during the past 30 days | 1001 |
64.3%
|
| 2 | 1 or 2 days | 211 |
13.6%
|
| 3 | 3 to 5 days | 99 |
6.4%
|
| 4 | 6 to 9 days | 36 |
2.3%
|
| 5 | 10 to 19 days | 30 |
1.9%
|
| 6 | 20 to 29 days | 36 |
2.3%
|
| 7 | all 30 days | 143 |
9.2%
|
| Sysmiss | 18 |