Table 1:
Distribution and reliability of the Chinese SF-12v2 Health Survey among older adults in Guangzhou (N=1000)
| Scales | Mean | SD | Minimum (% floor) | Maximum (% ceiling) | Cronbach’s alpha† | ||
|---|---|---|---|---|---|---|---|
| Total (N=1000) | Institutional care (N=549) | Community-based home care (N=451) | |||||
| PF | 48.6 | 39.57 | 0.00 (31.40) | 100.00(26.90) | 0.92 | 0.94 | 0.88 |
| RP | 51.13 | 30.74 | 0.00 (12.80) | 100.00 (13.10) | 0.96 | 0.97 | 0.92 |
| BP | 62.85 | 26.96 | 0.00 (3.70) | 100.00 (21.20) | 1.00 | 1.00 | 1.00 |
| GH | 36.65 | 25.51 | 0.00 (13.80) | 100.00 (1.10) | 1.00 | 1.00 | 1.00 |
| VT | 58.6 | 27.12 | 0.00 (4.70) | 100.00 (14.30) | 1.00 | 1.00 | 1.00 |
| SF | 59.88 | 32.29 | 0.00 (10.80) | 100.00 (23.80) | 1.00 | 1.00 | 1.00 |
| RE | 64.45 | 26.14 | 0.00 (3.40) | 100.00 (18.30) | 0.93 | 0.96 | 0.87 |
| MH | 70.06 | 20.89 | 0.00 (0.50) | 100.00 (13.00) | 0.73 | 0.80 | 0.60 |
| PCS | 39.92 | 10.33 | 16.95(0.00) | 67.02(0.00) | 0.81 | 0.79 | 0.81 |
| MCS | 49.08 | 9.85 | 12.50(0.00) | 72.80(0.00) | 0.83 | 0.84 | 0.79 |
†
Cronbach’s alpha for PCS was calculated from PF, RP, BP and GH, and for MCS was calculated from VT, SF, RE and MH. SF-12v2: Short Form-12 Health Survey Version 2; MCS: Mental Component Summary; PCS: Physical Component Summary; PF: Physical Functioning; RP: Role Physical; BP: Bodily Pain; GH: General Health; VT: Vitality; SF: Social Functioning; RE: Role Emotional; MH: Mental Health.