TABLE 2—
Descriptive Characteristics for New, Established, and All Patients in a US Network: 2022
| Characteristic | New Patients, No. (%) | Established Patients, No. (%) | P a | All Patients, No. (%) |
| Total | 761 260 (40.8) | 1 102 747 (59.2) | 1 864 007 (100.0) | |
| COVID-19 vaccine series completion | 680 895 (89.4) | 656 545 (59.5) | ≤ .001 | 1 337 440 (71.8) |
| Age | ≤ .001 | |||
| 6 mo–4 y | 5 464 (0.7) | 105 285 (9.6) | 110 749 (5.9) | |
| 5–11 y | 45 385 (6.0) | 108 668 (9.9) | 154 053 (8.3) | |
| 12–17 y | 72 480 (9.5) | 102 278 (9.3) | 174 758 (9.4) | |
| 18–29 y | 150 414 (19.8) | 137 602 (12.5) | 288 016 (15.5) | |
| 30–49 y | 230 635 (30.3) | 289 013 (26.2) | 519 648 (27.9) | |
| 50–64 y | 158 055 (20.8) | 223 461 (20.3) | 381 516 (20.5) | |
| 65–74 y | 65 025 (8.5) | 95 411 (8.7) | 160 436 (8.6) | |
| ≥ 75 y | 33 802 (4.4) | 41 029 (3.7) | 74 831 (4.0) | |
| Sex | ≤ .001 | |||
| Female | 319 808 (42.0) | 462 353 (41.9) | 782 161 (42.0) | |
| Male | 440 722 (57.9) | 639 866 (58.0) | 1 080 588 (58.0) | |
| Missing | 730 (0.1) | 528 (0.1) | 1258 (0.1) | |
| Race | ≤ .001 | |||
| American Indian/Alaska Native | 10 297 (1.4) | 10 820 (1.0) | 21 117 (1.1) | |
| Asian | 58 542 (7.7) | 74 127 (6.7) | 132 669 (7.1) | |
| Native Hawaiian/other Pacific Islander | 4 450 (0.6) | 7 872 (0.7) | 12 322 (0.7) | |
| Black/African American | 88 399 (11.6) | 214 019 (19.4) | 302 418 (16.2) | |
| White | 431 523 (56.7) | 646 656 (58.6) | 1 078 179 (57.8) | |
| ≥ 1 race | 7 398 (1.0) | 14 627 (1.3) | 22 025 (1.2) | |
| Missing | 160 651 (21.1) | 134 626 (12.2) | 295 277 (15.8) | |
| Hispanic/Latino | ≤ .001 | |||
| No | 376 260 (49.4) | 617 518 (56.0) | 993 778 (53.3) | |
| Yes | 312 644 (41.1) | 432 543 (39.2) | 745 187 (40.0) | |
| Missing | 72 356 (9.5) | 52 686 (4.8) | 125 042 (6.7) | |
| Federal poverty level,b % | ≤ .001 | |||
| < 50 | 330 218 (43.4) | 475 001 (43.1) | 805 219 (43.2) | |
| 50– < 100 | 112 724 (14.8) | 234 259 (21.2) | 346 983 (18.6) | |
| 100– < 130 | 51 558 (6.8) | 94 274 (8.6) | 145 832 (7.8) | |
| 130– < 185 | 67 655 (8.9) | 106 882 (9.7) | 174 537 (9.4) | |
| ≥ 185 | 84 388 (11.1) | 129 280 (11.7) | 213 668 (11.5) | |
| Missing | 114 717 (15.1) | 63 051 (5.7) | 177 768 (9.5) | |
| Payor type | ≤ .001 | |||
| Medicaid | 367 259 (48.2) | 625 211 (56.7) | 992 470 (53.2) | |
| Medicare | 75 256 (9.9) | 127 758 (11.6) | 203 014 (10.9) | |
| Other public | 4 046 (0.5) | 7 949 (0.7) | 11 995 (0.6) | |
| Private | 147 068 (19.3) | 167 551 (15.2) | 314 619 (16.9) | |
| Uninsured | 167 631 (22.0) | 174 278 (15.8) | 341 909 (18.3) | |
| Patient visits | ≤ .001 | |||
| 1–3 | 473 341 (62.2) | 88 699 (8.0) | 562 040 (30.2) | |
| 4–16 | 260 177 (34.2) | 567 619 (51.5) | 827 796 (44.4) | |
| > 16 | 27 742 (3.6) | 446 429 (40.5) | 474 171 (25.4) | |
| Chronic health condition | ≤ .001 | |||
| Diabetes | 13 701 (1.8) | 75 733 (6.9) | 89 434 (4.8) | |
| Immunosuppression | 3 828 (0.5) | 22 459 (2.0) | 26 287 (1.4) | |
| Chronic kidney disease | 2 439 (0.3) | 19 548 (1.8) | 21 987 (1.2) | |
| Chronic neurologic disease | 1 990 (0.3) | 17 150 (1.6) | 19 140 (1.0) | |
| Chronic cardiac disease | 4 713 (0.6) | 32 673 (3.0) | 37 386 (2.0) | |
| Chronic liver disease | 2 641 (0.4) | 14 033 (1.3) | 16 674 (0.9) | |
| Chronic pulmonary disease | 13 008 (1.7) | 70 754 (6.4) | 83 762 (4.5) | |
| Overweight | 73 418 (9.6) | 223 584 (20.3) | 297 002 (15.9) | |
| Obesity | 112 354 (14.8) | 352 193 (31.9) | 464 547 (24.9) | |
| Current or former smoker | 15 635 (2.1) | 172 930 (15.7) | 188 565 (10.1) |
a
P values generated from the χ2 test of independence. The P values and χ2 test of independence compare new patients with established patients.
b
Defined by the 2021–2022 US Census Bureau depending on last date of patient federal poverty level assessment.