Table 2.
Baseline sociodemographic characteristics of caregivers and global scores of SQLC, ZBI, CSI, Goldberg Anxiety Scale, Goldberg Depression Scale, and WPAI.
| Baseline characteristics | |
| Age, years*(mean ± SD) | 58.8 ± 11.7 |
| Sex (female), n (%) | 38 (64.4) |
| Race (Caucasian),* n (%) | 54 (91.5) |
| Marital status, n (%) | – |
| Single | 4 (6.8) |
| Married/couple’s relationship | 46 (78.0) |
| Separated/divorced | 3 (5.1) |
| Widower/widow | 1 (1.7) |
| Missing | 5 (8.5) |
| Highest level of education, n (%) | |
| None | 5 (8.5) |
| Primary school | 23 (39.0) |
| Secondary school | 9 (15.2) |
| Vocational education | 5 (8.5) |
| University | 12 (20.3) |
| Missing | 5 (8.5) |
| Employment status, n (%) | |
| Never worked | 6 (10.2) |
| Employed | 13 (22.0) |
| Unemployed | 6 (10.2) |
| Retired | 16 (27.1) |
| On sick leave | 3 (5.1) |
| Another situation | 10 (16.9) |
| Missing | 5 (8.5) |
| Full time care,*n (%) | 25 (42.4) |
| SQLC* (mean ± SD) | 63.6 ± 26.4 |
| ZBI* (mean ± SD) | 24.9 ± 13.5 |
| CSI* (mean ± SD) | 5.0 ± 3.3 |
| Goldberg Anxiety Scale** (mean ± SD) | 7.2 ± 1.3 |
| Goldberg Depression Scale*** (mean ± SD) | 5.7 ± 1.9 |
| WPAI | |
| • Outcome score 1 (mean ± SD) | 12.0 ± 27.5 |
| • Outcome score 2 (mean ± SD) | 26.4 ± 28.2 |
| • Outcome score 3 (mean ± SD) | 36.1 ± 33.9 |
| • Outcome score 4 (mean ± SD) | 25.6 ± 25.3 |
Missing subjects *n = 5; **n = 31; ***n = 34.
APD advanced Parkinson’s disease, CSI Caregiver Strain Index, SQLC Scales of Quality of Life for Caregivers, WPAI Work Productivity and Activity Impairment (assessed in 16 caregivers that were employed during the study; Outcome 1: percent work time missed due to APD; Outcome 2: percent impairment while working due to APD; Outcome 3: percent overall work impairment due to APD; and Outcome 4: percent activity impairment due to APD), ZBI Zarit Burden Inventory.