Appendix 1.
A Comparison of Patient Characteristics of the Cohort vs. Nonrespondents to Time 2 Survey
| Nonrespondents to Time 2 | Patient Cohort (Responded to Time 1 and Time 2) | ||
|---|---|---|---|
| Baseline Characteristics | (n = 885; 41%) | (n = 1,291; 59%) | p‐value |
| Age (N = 2,168) | |||
| 18‐24 | 7 (0.8%) | 6 (0.5%) | <0.0001 |
| 25‐34 | 20 (2.3%) | 5 (0.4%) | |
| 35‐44 | 66 (7.5%) | 52 (4.0%) | |
| 45‐54 | 124 (14%) | 154 (12%) | |
| 55‐64 | 219 (25%) | 324 (25%) | |
| 65‐74 | 296 (34%) | 502 (39%) | |
| 75+ | 146 (17%) | 247 (19%) | |
| Sex | |||
| Male | 429 (48%) | 556 (43%) | 0.013 |
| Female | 456 (52%) | 735 (57%) | |
| Race | |||
| White | 392 (47%) | 635 (49%) | 0.3 |
| Black | 114 (14%) | 153 (12%) | |
| Asian | 73 (8.7%) | 123 (10%) | |
| Pacific Islander | 6 (0.7%) | 3 (0.2%) | |
| First Nation | 4 (0.5%) | 9 (0.7%) | |
| Other | 252 (30%) | 361 (28%) | |
| Education (N = 2,154) | |||
| Eighth grade or less | 115 (13%) | 153 (12%) | 0.7 |
| Some high school | 69 (8.0%) | 103 (8.0%) | |
| High school | 165 (19%) | 280 (22%) | |
| Some college | 281 (32%) | 412 (32%) | |
| College | 122 (14%) | 176 (14%) | |
| More than college | 114 (13%) | 164 (13%) | |
| Insurance | |||
| Private | 411 (46%) | 522 (40%) | 0.045 |
| Medicaid | 17 (1.9%) | 27 (2.1%) | |
| Medicare | 398 (45%) | 638 (49%) | |
| Medicaid and Medicare | 59 (6.7%) | 104 (8.1%) | |
| Comorbidity count (mean, SD) | 5.0 (4.0, 7.0) | 5.0 (4.0, 8.0) | 0.063 |
| Patient Activation Measure | 3.2 (3.0, 3.6) | 3.2 (3.0, 3.6) | 0.6 |