Table 5.
Comparison of variables between surveys for which consent was obtained from the substitute decision maker (SDM) and surveys for which consent was obtained from the patient themselves (difference of >15%).
| Characteristic | Consent from SDMa (n=53) | Consent from patient (n=57) | P value |
| Web-based survey, n (%) | 50 (94) | 36 (63) | <.001b |
| Age (y), mean (SD) | 73.75 (13.085) | 70.60 (10.61) | .17 |
| Male sex, n (%) | 34 (64) | 27 (47) | .08 |
| Distance (km), mean (SD) | 15.897 (16.525) | 19.435 (16.48) | .26 |
| Driving, n (%) | 27 (55)c | 40 (74)d | .04e |
| Language barrier, n (%) | 10 (19) | 0 (0) | <.001b |
| Hearing impaired, n (%) | 18 (34) | 10 (18) | .048 |
| Hearing impairment affecting phone conversations, n (%) | 12 (67)f | 2 (20)g | .02e |
| Residual stroke symptoms, n (%) | 17 (49)h | 10 (28)i | .07 |
| Tangibles, mean (SD) | 3.21 (0.83) | 3.67 (0.61) | <.001b |
| Reliability, mean (SD) | 3.87 (0.82) | 3.94 (0.56) | .68 |
| Responsiveness, mean (SD) | 3.76 (0.94) | 3.76 (0.59) | .98 |
| Assurance, mean (SD) | 3.99 (0.78) | 4.04 (0.53) | .68 |
| Empathy, mean (SD) | 3.75 (0.71) | 3.96 (0.56) | .34 |
aConsent from SDM indicates that the survey was answered with the help of an SDM.
bP<.001.
cN=49.
dN=54.
eP<.05.
fN=18.
gN=10.
hN=35.
iN=36.