Tab. I.
The Indonesian SF-12 factor structure and number of response options.
| Component | Subscales | Item code | Number of response options |
|---|---|---|---|
| Physical component score (PCS-12) |
General health | Item 1 | 5 |
| Physical health | Item 2 and 3 | 3 | |
| Role-physical | Item 4 and 5 | 2 | |
| Bodily pain | Item 8 | 5 | |
| Mental component score (MCS-12) |
Role-emotional | Item 6 and 7 | 2 |
| Mental health | Item 9 and 11 | 6 | |
| Vitality | Item 10 | 6 | |
| Social function | Item 12 | 5 |
Four items were reversed scored: the General health item (item 1), the Bodily pain item (item 8), one Mental health item (item 9; ‘Felt calm and peaceful’) and the Vitality item (item 10).