Respondent and non-respondent characteristics by mode
| Paper | Patient portal | IVR | SMS | Tablet and mail†‡ | |||||
|---|---|---|---|---|---|---|---|---|---|
| Respondents (n=541) | Non-respondents (n=4151) | Respondents (n=1019) | Eligible non-respondents (n=1996) | Respondents (n=893) | Eligible non-respondents (n=2696) | Respondents (n=757) | Eligible non-respondents (n=2572) | Respondents (n=1211) | |
| Female | 65.4% | 65.6% | 68.8% | 67.6% | 63.2% | 64.5% | 64.2% | 64.9% | 57.1% |
| Mean age (SD) | 54.09 (15.73) | 47.12* (21.54) | 54.12 (15.93) | 46.27* (10.98) | 44.61 (18.77) | 41.97* (20.02) | 46.56 (18.58) | 43.76* (19.78) | 49.57 (18.38) |
| Number of morbidities | * | ||||||||
| 0 | 17.7% | 31.4% | 59.6% | 62.7% | 35.9% | 37.2% | 38.4% | 37.7% | – |
| 1 | 35.9% | 42.2% | 32.5% | 31.1% | 43.7% | 44.7% | 40.8% | 42.1% | – |
| 2 | 25.1% | 16.7% | 7.5% | 6.0% | 15.0% | 13.1% | 16.0% | 14.7% | – |
| 3 | 13.7% | 6.3% | 0.5% | 0.2% | 4.1% | 3.6% | 3.4% | 4.4% | – |
| 4 or more | 7.6% | 3.4% | 0% | 0.1% | 1.2% | 1.4% | 1.3% | 1.1% | – |
| Annual wellness visit | 20.3% | 17.4% | 25.3% | 19.3%* | 19.4% | 16.6% | 22.6% | 17.5% | – |
*Significantly different from respondent group, p<0.05.
†During the electronic tablet/postal mail phase, responses were not linked to the electronic medical record; as a result, non-respondent patient characteristics are unavailable.
‡An intervention was introduced midway through data collection.
IVR, interactive voice response; SMS, short message service.