Patient Characteristics
| Characteristic | Intervention (n=2,222) No. (%) | Control (n=3,012) No. (%) | P Valuea |
|---|---|---|---|
| a For difference across patient groups, by χ2 test. | |||
| Age, years | |||
| 18–39 | 122 (5.5) | 122 (4.1) | <.001 |
| 40–64 | 862 (38.8) | 1,030 (34.2) | |
| ≥65 | 1,238 (55.7) | 1,860 (61.8) | |
| Sex | |||
| Male | 1,055 (47.5) | 1,443 (47.9) | .76 |
| Female | 1,167 (52.5) | 1,569 (52.1) | |
| Number of office visits during study | |||
| 1 | 315 (14.2) | 485 (16.1) | .051 |
| 2 | 406 (18.3) | 552 (18.3) | |
| 3 | 407 (18.3) | 486 (16.1) | |
| 4 | 317 (14.3) | 378 (12.6) | |
| 5 | 231 (10.4) | 320 (10.6) | |
| ≥6 | 546 (24.6) | 791 (26.3) | |