Table 4.
Patient characteristics, stratified by loss to follow-up during the COVID period.
| Characteristic | Lost to follow-up (N = 4,997) | Not lost to follow-up (N = 9,173) | P-value |
|---|---|---|---|
| Age, median (IQR), years | 56 (31–72) | 60 (43–72) | <0.0001 |
| Female sex | 2,908 (58.2) | 5,654 (61.6) | <0.0001 |
| Race * | <0.0001 | ||
| Native American | 6 (0.1) | 19 (0.2) | |
| Asian | 211 (4.2) | 353 (3.8) | |
| Black or African American | 823 (16.5) | 1,421 (15.5) | |
| Pacific Islander | 21 (0.4) | 50 (0.5) | |
| Not reported | 1,276 (25.5) | 2,098 (22.9) | |
| White | 2,661 (53.3) | 5,233 (57.1) | |
| Preferred language | <0.0001 | ||
| English | 4,565 (91.3) | 8,515 (92.8) | |
| Non-English | 382 (7.6) | 624 (6.8) | |
| Unknown | 50 (1.0) | 34 (0.4) | |
| Insurance coverage | <0.0001 | ||
| Commercial | 2,246 (44.9) | 3,660 (39.9) | |
| Medicaid | 685 (13.7) | 1,170 (12.7) | |
| Medicare | 1,691 (33.8) | 3,742 (40.8) | |
| Other | 155 (3.1) | 201 (2.2) | |
| Unknown | 220 (4.4) | 400 (4.4) | |
| ZIP code AGI per household, median, $US | 84,311 (53,526–179,965) | 88,124 (56,093–182,162) | 0.0253 |
| Charlson-Deyo comorbidity index | 0.0028 | ||
| 0 | 3,306 (66.2) | 5,815 (63.4) | |
| 1 | 967 (19.3) | 1,867 (20.3) | |
| 2 | 340 (6.8) | 751 (8.2) | |
| ≥3 | 384 (7.7) | 740 (8.1) | |
Data are reported as N (%), unless otherwise noted.
*
Race variable is imputed as described in Methods.
COVID19, coronavirus disease 2019; IQR, interquartile range; AGI, annual gross income.