| Measurement frequency | Rural (%) | Urban (%) | Total (%) |
|---|---|---|---|
| Weekly | 380(34.3) | 575(63.9) | 955(47.6) |
| Monthly | 445(40.2) | 232(25.8) | 677(33.7) |
| 3 months | 184(16.6) | 49(5.4) | 233(11.6) |
| 6 months | 47(4.2) | 24(2.7) | 71(3.5) |
| More than 6 months | 51(4.6) | 20(2.2) | 71(3.5) |
| Total | 1107(55.2) | 900(44.8) | 2007 |