From: Risks and rewards of using prepaid vs. postpaid incentive checks on a survey of physicians
Characteristic | Cooperation rate (%) for prepaid group (n = 2426) | Cooperation rate (%) for postpaid group (n = 953) | Delta | Chi-squared statistic, degrees of freedom, p-value |
---|---|---|---|---|
Total | 41.4 (1004) | 29.1 (277) | 12.3 | 46.8, 1, < 0.0001 |
Region | ||||
Midwest | 44.3 (233) | 36.0 (74) | 8.3 | 4.2, 1, 0.0406 |
Northeast | 41.3 (240) | 30.3 (70) | 11.0 | 9.0, 1, 0.0028 |
South | 41.2 (356) | 25.0 (85) | 16.2 | 30.6, 1, < 0.0001 |
West | 38.7 (175) | 27.5 (48) | 11.2 | 7.5, 1, 0.0064 |
Metropolitan statistical area size | ||||
Very large | 41.3 (718) | 29.5 (201) | 11.8 | 30.6, 1, < 0.0001 |
Large | 43.5 (141) | 26.5 (34) | 17.0 | 12.4, 1, 0.0005 |
Small/medium | 40.1 (145) | 29.5 (42) | 10.6 | 5.2, 1, 0.0237 |
Specialty | ||||
Hematology | 39.2 (82) | 26.7 (20) | 12.5 | 4.0, 1, 0.0478 |
Hematology- oncology | 40.5 (612) | 28.3 (166) | 12.2 | 29.2, 1, < 0.0001 |
Oncology | 44.0 (310) | 31.4 (91) | 12.6 | 14.1, 1, 0.0002 |
Gender and Age | ||||
Female | 37.5 (282) | 24.9 (71) | 12.6 | 16.2, 1, 0.0001 |
Male under age 55 | 43.1 (421) | 30.2 (118) | 12.9 | 20.6, 1, < 0.0001 |
Male age 55 or older | 43.4 (301) | 32.0 (88) | 11.4 | 11.0, 1, 0.0009 |