Table 1 Subject characteristics (n = 646)
| Â | N | % |
|---|---|---|
Caregiver's age, y [Mean(SD)] | 64.3(11.6) | |
Gender (Female) | 412 | 65 |
Relationship of caregiver | Â | Â |
   Spouse | 460 | 71 |
   Child/Child-in-law | 138 | 21 |
   Other | 48 | 7 |
Caregivers at work | 147 | 23 |
Household income (Yen, millions) | Â | Â |
   <=3 | 250 | 41 |
   <=5 | 191 | 32 |
   <=7 | 81 | 13 |
   <=9 | 43 | 7 |
   >9 | 39 | 7 |
Duration of caregiving, y [Mean(SD)] | 5.2(4.4) | |
Hours spent caregiving per day [Mean(SD)] | 6.0 (6.3) | |
Hours required for close supervision of the patient [Mean(SD)] | 5.2 (6.7) | |
Patient's age, y [Mean(SD)] | 70.4 (9.6) | |
Diagnosis | Â | Â |
   PD (Parkinson's disease) | 279 | 43 |
   SCD (spinocerebellar degeneration) | 78 | 12 |
   MSA (multiple system atrophy) | 39 | 6 |
   ALS (amyotrophic lateral sclerosis) | 30 | 5 |
   CVA (cerebrovascular accident) | 220 | 34 |
Duration of disease, y [Mean(SD)] | 8.0 (6.1) | |
ADL (Index of activity of daily living by MHLW) | Â | Â |
   J/Independent | 89 | 17 |
   A | 177 | 34 |
   B | 177 | 34 |
   C | 74 | 14 |
SF-8 score [Mean(SD)] | Â | Â |
   PF (Physical Functioning) |  | 2.4(1.2) |
   RP (Role functioning Physical) |  | 2.5(1.2) |
   BP (Bodily Pain) |  | 3.0(1.3) |
   GH (General Health perceptions) |  | 3.7(0.9) |
   VT (Vitality) |  | 2.9(0.9) |
   SF (Social Functioning) |  | 2.5(1.2) |
   RE (Role functional Emotional) |  | 2.5 (1.1) |
   MH (Mental Health) |  | 2.8 (1.1) |
CES-D score [Mean(SD)] | Â | 15.6 (9.8) |
ZBI score [Mean(SD)] | Â | 35.0(18.4) |
Barthel Index (only CVA) [Mean(SD)] | Â | 53.0(34.0) |