Table 1. Participant characteristics at initial WHODAS administration.
| Control | Low | Med | High | Group comparison | |
|---|---|---|---|---|---|
| N | 223 | 127 | 174 | 202 | |
| N of companions | 198 | 112 | 148 | 172 | |
| Sex (% male) | 37 | 33 | 40 | 45 | χ2(3)=5.33 (P=0.15) |
| Age (years) | |||||
| Mean | 47 | 35.1 | 42.2 | 47.5 | F(3,722)=45.25 (P<0.001) |
| SD | 11.7 | 10.1 | 10.2 | 9.9 | |
| Education (years) | |||||
| Mean | 15 | 14.6 | 14.9 | 14.5 | F(3,722)=1.46 (P=0.22) |
| SD | 2.5 | 2.3 | 2.3 | 2.8 | |
| WHODAS | |||||
| Mean | 40.1 | 40.4 | 41.9 | 43.4 | F(3,722)=4.22 (P=0.0057) |
| SD | 8.7 | 8.3 | 10.8 | 12 | |
| Companion WHODAS | |||||
| Mean | 39.3 | 40.4 | 41 | 43.2 | F(3,626)=5.07 (P=0.0018) |
| SD | 6.6 | 7.4 | 8.9 | 10.5 | |
| Modified TFC a | |||||
| Mean | 5.9 | 6.0 | 5.9 | 5.8 | F(3,722)=3.48 (P=0.016) |
| SD | 0.4 | 0.2 | 0.5 | 0.6 | |
Abbreviations: Med, medium; TFC, Total Functional Capacity; WHODAS, World Health Organization Disability Assessment Schedule.
a
Modified TFC=occupation item score+finances item score, occupation (0=unable, 1=marginal work only, 2=reduced capacity for usual job, 3=normal), finances (0=unable, 1=major assistance, 2=slight assistance, 3=normal).