Table 1.
Study sites by region and province*
| Region | Female population (20–59 years old) | Province | Sample size |
|---|---|---|---|
| Central | 5,113,691 | Chonburi: Famous province for Oceanside. Lots of factory and tourism business. 80 km from Bangkok | 725 |
| Northern | 3,644,532 | Phitsanulok: 383 km from Bangkok. Mountainous area mostly in Agriculture | 457 |
| Southern | 2,659,222 | Surat Thani: Large City in the region. Center for tourism along seaside. Mostly in tourism and fishery business. 639 km from Bangkok | 378 |
| Northeastern | 6,595,363 | Khonkaen: Big city and the center of northeastern. Mostly in agriculture and tourism service business. 449 km from Bangkok | 902 |
| Total | 2462 |
*Thailand consist of 77 provinces