|
| Data |
| Gender (male/female) | 63/37 |
| Age (years) | 70 ± 8 |
| Education level |
|
| Below primary | 12 |
| Primary | 54 |
| Junior high | 14 |
| Senior high | 13 |
| Technical secondary | 7 |
| Economic conditions |
|
| Poor | 31 |
| Medium | 56 |
| Rich | 13 |