Table 1a.
Demographics overall and by prior SARS-CoV-2 infection status
| Characteristic | Prior Infection (n = 8,746) |
No prior infection (n = 1,348) |
Overall (n=10,094) |
|---|---|---|---|
| Age at infection [years] | |||
| Mean (SD) | 46 (15) | 52 (15) | 47 (15) |
| Median [IQR] | 45 (34, 59) | 54 (39, 64) | 47 (34, 60) |
| Missing | 5 | 1 | 6 |
| Race/Ethnicity | |||
| Non-Hispanic White | 5080 (58%) | 847 (63%) | 5927 (59%) |
| Non-Hispanic Black | 1214 (14%) | 204 (15%) | 1418 (14%) |
| Non-Hispanic Asian | 462 (5%) | 88 (7%) | 550 (5%) |
| Hispanic | 1523 (17%) | 156 (12%) | 1679 (17%) |
| Mixed race/Other | 400 (5%) | 43 (3%) | 443 (4%) |
| Missing | 67 | 10 | 77 |
| Sex assigned at birth | |||
| Female | 6329 (73%) | 911 (68%) | 7240 (72%) |
| Male | 2392 (27%) | 432 (32%) | 2824 (28%) |
| Intersex | 4 (0%) | 0 (0%) | 4 (0%) |
| Missing | 21 | 5 | 26 |
| Enrollment group and era | |||
| Pre-Omicron | 3362 (38%) | 317 (24%) | 3679 (36%) |
| Omicron acute | 2963 (34%) | 548 (41%) | 3511 (35%) |
| Omicron post-acute | 2421 (28%) | 483 (36%) | 2904 (29%) |
| Referral type | |||
| Self-referral/Community outreach/Long COVID | 4377 (50%) | 960 (71%) | 5337 (53%) |
| Another referral | 4364 (50%) | 388 (29%) | 4752 (47%) |
| Missing | 5 | 0 | 5 |
| Hospitalized during acute phase of first infection | |||
| Not hospitalized during acute phase | 7738 (91%) | n/a | 7738 (91%) |
| Hospitalized during acute phase | 723 (9%) | n/a | 723 (9%) |
| Missing | 285 | n/a | 285 |
| Vaccinated at first infection | |||
| Unvaccinated | 3042 (35%) | 182 (14%) | 3224 (32%) |
| Partially vaccinated or date of last dose unknown | 516 (6%) | 85 (6%) | 601 (6%) |
| Fully vaccinated | 5144 (59%) | 1068 (80%) | 6212 (62%) |
| Missing | 44 | 13 | 57 |
| Visit month | |||
| 6 months | 5000 (57%) | 952 (71%) | 5952 (59%) |
| 9+ | 3746 (43%) | 396 (29%) | 4142 (41%) |
| Marital status at enrollment | |||
| Divorced, widowed, separated, or never married | 3177 (37%) | 531 (40%) | 3708 (38%) |
| Married or living with partner | 5376 (63%) | 783 (60%) | 6159 (62%) |
| Missing | 193 | 34 | 227 |
| Homelessness at enrollment | |||
| Homeless | 197 (2%) | 30 (2%) | 227 (2%) |
| Not homeless | 8422 (98%) | 1294 (98%) | 9716 (98%) |
| Missing | 127 | 24 | 151 |
| Disability at enrollment | |||
| Disabled | 319 (4%) | 80 (6%) | 399 (4%) |
| Not disabled | 8271 (96%) | 1233 (94%) | 9504 (96%) |
| Missing | 156 | 35 | 191 |
| Unemployment at enrollment | |||
| Unemployed | 245 (3%) | 47 (4%) | 292 (3%) |
| Not unemployed | 8345 (97%) | 1266 (96%) | 9611 (97%) |
| Missing | 156 | 35 | 191 |
| Medicaid at enrollment | |||
| Medicaid | 1303 (15%) | 176 (13%) | 1479 (15%) |
| Not Medicaid | 7196 (85%) | 1132 (87%) | 8328 (85%) |
| Missing | 247 | 40 | 287 |
| Uninsured at enrollment | |||
| Uninsured | 273 (3%) | 38 (3%) | 311 (3%) |
| Not uninsured | 8226 (97%) | 1270 (97%) | 9496 (97%) |
| Missing | 247 | 40 | 287 |
| Lost insurance due to pandemic | |||
| Lost insurance | 274 (3%) | 23 (2%) | 297 (3%) |
| Did not lose insurance | 8256 (97%) | 1279 (98%) | 9535 (97%) |
| Missing | 216 | 46 | 262 |
| Difficulty covering expenses in the month before enrollment | |||
| Not at all difficult to cover expenses | 5105 (62%) | 933 (73%) | 6038 (63%) |
| Somewhat difficult to cover expenses | 2288 (28%) | 258 (20%) | 2546 (27%) |
| Very difficult to cover expenses | 889 (11%) | 92 (7%) | 981 (10%) |
| Missing | 464 | 65 | 529 |
| Most recent doctor’s visit before index | |||
| Within the last 5 years | 8373 (99%) | 1290 (99%) | 9663 (99%) |
| Greater than 5 years | 82 (1%) | 15 (1%) | 97 (1%) |
| Missing | 291 | 43 | 334 |
| Skipped care in 12 months before index | |||
| Skipped care | 480 (6%) | 58 (4%) | 538 (5%) |
| Did not skip care | 8035 (94%) | 1258 (96%) | 9293 (95%) |
| Missing | 231 | 32 | 263 |
| 2019 Household Income | |||
| <$25,000 | 1319 (16%) | 218 (18%) | 1537 (17%) |
| $25,000-$49,999 | 1279 (16%) | 149 (12%) | 1428 (15%) |
| ≥$50,000 | 5403 (68%) | 856 (70%) | 6259 (68%) |
| Missing | 745 | 125 | 870 |
| Food insecurity in 12 months before index | |||
| Food insecure | 1233 (14%) | 156 (12%) | 1389 (14%) |
| Not food insecure | 7310 (86%) | 1161 (88%) | 8471 (86%) |
| Missing | 203 | 31 | 234 |