Table A2.
Comparing characteristics of participants with vaccine information in EHR (among participants with information about receipt and date of at least one dose of a COVID-19 vaccine in at least one source, N = 41,484).
| Without Vaccine in EHR N = 32,972 |
With Vaccine in EHR N = 8512 |
|
|---|---|---|
| Site | ||
| Atrium | 2689 (8.2%) | 4232 (49.7%) |
| Campbell | 447 (1.4%) | 0 (0.0%) |
| Maryland | 4683 (14.2%) | 0 (0.0%) |
| MedStar | 8551 (25.9%) | 1292 (15.2%) |
| Mississippi | 71 (0.2%) | 272 (3.2%) |
| New Hanover | 369 (1.1%) | 334 (3.9%) |
| Tulane | 166 (0.5%) | 0 (0.0%) |
| Vidant | 752 (2.3%) | 0 (0.0%) |
| Wake Forest | 13,404 (40.6%) | 1495 (17.6%) |
| Wake Med | 1842 (5.6%) | 887 (10.4%) |
| Age (years) | 53.2 ± 14.8 | 51.4 ± 15.1 |
| Sex | ||
| Female | 22,582 (68.5%) | 6179 (72.6%) |
| Male | 10,385 (31.5%) | 2333 (27.4%) |
| Unspecified | 5 (0.0%) | 0 (0.0%) |
| Healthcare Worker | ||
| No | 27,001 (81.9%) | 4433 (52.1%) |
| Yes | 5971 (18.1%) | 4079 (47.9%) |
| Race/Ethnicity | ||
| American Indian/Alaskan Native | 98 (0.3%) | 11 (0.1%) |
| Asian/Pac Islander | 647 (2.0%) | 244 (2.9%) |
| Black/African Am | 2004 (6.1%) | 555 (6.5%) |
| Hispanic/Latino | 834 (2.5%) | 218 (2.6%) |
| Mixed Ethnicity | 445 (1.3%) | 132 (1.6%) |
| Not Specified | 308 (0.9%) | 62 (0.7%) |
| Non-Hispanic White | 28,636 (86.8%) | 7290 (85.6%) |
| Region of Enrollment | ||
| Deep South | 237 (0.7%) | 272 (3.2%) |
| North Atlantic | 13,234 (40.1%) | 1292 (15.2%) |
| South East | 19,501 (59.1%) | 6948 (81.6%) |
| County of Residence | ||
| Rural | 7218 (21.9%) | 1072 (12.6%) |
| Suburban | 7338 (22.2%) | 2093 (24.6%) |
| Urban | 18,415 (55.9%) | 5347 (62.8%) |
p < 0.001 for all comparisons. p-values for Pearson’s Chi-squared test for categorical variables and Welch’s two-sample t-test for normally distributed continuous variables.