Table 3.
Correlation between cognitive function, depressive symptoms, and overall QOL
| SPEARMAN CORRELATION COEFFICIENTS PROB > |R| UNDER H0: RHO = 0 NUMBER OF OBSERVATIONS | |||||||
|---|---|---|---|---|---|---|---|
| STMS | MMSE | DRS | GDS | OVERALL QOL (S) |
OVERALL QOL (C) |
COGNITIVE STATUS |
|
| MMSE | 0.88 | ||||||
| <0.001 | |||||||
| 112 | |||||||
| DRS | 0.87 | 0.90 | |||||
| <0.001 | <0.001 | ||||||
| 92 | 92 | ||||||
| GDS | −0.14 | −0.12 | −0.17 | ||||
| 0.14 | 0.19 | 0.11 | |||||
| 111 | 114 | 92 | |||||
| Overall QOL (S) | 0.12 | 0.13 | 0.09 | −0.38 | |||
| 0.22 | 0.19 | 0.39 | <0.001 | ||||
| 106 | 108 | 89 | 108 | ||||
| Overall QOL (C) | 0.34 | 0.31 | 0.30 | −0.39 | 0.30 | ||
| <0.001 | <0.001 | <0.005 | <0.001 | <0.002 | |||
| 106 | 108 | 89 | 108 | 108 | |||
| Cognitive status | −0.77 | −0.80 | −0.84 | 0.13 | −0.15 | −0.29 | |
| <0.001 | <0.001 | <0.001 | 0.18 | 0.13 | 0.003 | ||
| 114 | 116 | 92 | 114 | 108 | 108 | ||
DRS = Dementia Rating Scale; GDS = Geriatric Depression Scale short form; MMSE = Mini-mental State Examination; NS = not significant; Overall QOL (S) = self-rated overall quality of life; Overall QOL (C) = overall quality of life rated by caregiver; STMS = Short Test of Mental Status; Cognitive status, 1 = Normal, 2 = MCI, 3 = Dementia (with or without stroke/parkinsonism).