Table 3.
Costs (expressed as percent of total costs) of survey implementation by study arm
| Cost category | Arm 1 | Arm 2 | Arm 3 | Arm 4 |
|---|---|---|---|---|
| KPCO labor: survey development and administration | 40% | 42% | 52% | 50% |
| IVR vendor: labor | - | 19% | 10% | 34% |
| Survey vendor: labor | 26% | 11% | 12% | - |
| Survey vendor: materials/postage | 8% | 6% | 4% | - |
| Incentive and participant gratitudea | 26% | 22% | 22% | 16% |
| Cost per response | $50 | $62 | $45 | $63 |
a
Incentive is the $2 bill included with the advance letter in arms 1 and 2, participant gratitude is the $10 gift card for completing the survey.