Table 2. Total 12-Month Intervention Costs by Study Group.
| Intervention | Cost, $ | |
|---|---|---|
| Intervention group (n = 9960) | Control group (n = 9891) | |
| Primary care visit | ||
| Medicare | ||
| Wellness | 257 838 | 292 195 |
| Papanicolaou test only | 127 733 | 144 551 |
| KPWA | ||
| Wellness | 552 459 | 625 528 |
| Papanicolaou test only | 180 414 | 204 303 |
| Mailing | ||
| First | 146 711 | 0 |
| Second | 2990 | 0 |
| Processing | ||
| Medicare | 87 474 | 96 294 |
| KPWA | 76 978 | 83 636 |
| Colposcopy | ||
| Medicare | 19 803 | 12 457 |
| KPWA | 30 267 | 19 039 |
| Total cost | ||
| Medicare | ||
| Wellness visit | 514 817 | 400 946 |
| Papanicolaou test–only visit | 384 711 | 253 301 |
| KPWA | ||
| Wellness visit | 809 405 | 728 204 |
| Papanicolaou test–only visit | 437 360 | 306 978 |
| Cost per participant (95% CI) | ||
| Medicare | ||
| Wellness visit | 51.69 (49.87-53.54) | 40.54 (38.68-42.39) |
| Papanicolaou test–only visit | 38.63 (37.30-39.95) | 25.61 (24.34-26.88) |
| KPWA | ||
| Wellness visit | 81.27 (78.04-84.56) | 73.62 (70.30-76.95) |
| Papanicolaou test–only visit | 43.91 (42.13-45.70) | 31.04 (29.36-32.70) |
Abbreviation: KPWA, Kaiser Permanente Washington.