Table. Descriptive Statistics of Study Cohort per Month.
| Characterisic | Study year and montha | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | 2022 | |||||||||||||||||
| Jul | Aug | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| No. of cases | 1140 | 3760 | 3820 | 3520 | 5720 | 22 400 | 35 710 | 4830 | 4180 | 12 200 | 23 890 | 13 250 | 13 170 | 5140 | 11 760 | 10 890 | 7780 | 11 980 |
| Sex | ||||||||||||||||||
| Men | 482 (42) | 1541 (41) | 1574 (41) | 1480 (42) | 2338 (41) | 8707 (39) | 13 392 (38) | 1846 (38) | 1571 (38) | 4428 (36) | 8684 (36) | 4960 (37) | 4880 (37) | 1886 (37) | 4388 (37) | 3979 (37) | 2934 (38) | 4412 (37) |
| Women | 658 (58) | 2219 (59) | 2246 (59) | 2040 (58) | 3382 (59) | 13 693 (61) | 22 318 (63) | 2984 (62) | 2609 (62) | 7772 (64) | 15 206 (64) | 8290 (63) | 8290 (63) | 3245 (63) | 7372 (63) | 6911 (64) | 4846 (62) | 7568 (63) |
| Age, mean (SD) | 43 (21) | 43 (22) | 44 (22) | 46 (23) | 43 (22) | 41 (21) | 42 (21) | 46 (22) | 46 (21) | 48 (20) | 50 (20) | 50 (20) | 51 (20) | 51 (20) | 54 (20) | 57 (20) | 56 (20) | 56 (20) |
| Race | ||||||||||||||||||
| Asian | 42 (4) | 89 (2) | 85 (2) | 90 (3) | 166 (3) | 696 (3) | 1574 (4) | 220 (5) | 225 (5) | 591 (5) | 1297 (5) | 795 (6) | 720 (5) | 280 (5) | 527 (4) | 481 (4) | 311 (4) | 433 (4) |
| Black | 120 (11) | 385 (10) | 293 (8) | 184 (5) | 317 (6) | 1887 (8) | 3263 (9) | 265 (5) | 174 (4) | 496 (4) | 985 (4) | 591 (4) | 674 (5) | 307 (6) | 533 (5) | 462 (4) | 382 (5) | 602 (5) |
| White | 879 (77) | 2850 (76) | 3060 (80) | 2940 (84) | 4658 (81) | 16 862 (75) | 25 519 (71) | 3881 (80) | 3489 (83) | 10 318 (85) | 19 776 (83) | 10 842 (82) | 10 682 (81) | 4120 (80) | 9794 (83) | 9213 (85) | 6403 (82) | 9872 (82) |
| Other or unknownb | 113 (10) | 427 (11) | 426 (11) | 325 (9) | 588 (10) | 2975 (13) | 5358 (15) | 438 (9) | 283 (7) | 895 (7) | 1852 (8) | 1046 (8) | 1122 (9) | 451 (9) | 904 (8) | 733 (7) | 674 (9) | 1074 (9) |
| Unvaccinated | 548 (487) | 1786 (48) | 1770 (46) | 1473 (42) | 2506 (44) | 6906 (31) | 8831 (25) | 1014 (21) | 513 (12) | 1243 (10) | 2368 (10) | 1267 (10) | 1238 (9) | 560 (11) | 1198 (10) | 1015 (9) | 777 (10) | 1132 (9) |
| ≥2 Vaccines | 561 (49) | 1866 (50) | 1951 (51) | 1923 (55) | 2971 (52) | 14 547 (65) | 25 395 (71) | 3570 (74) | 3526 (84) | 10 645 (87) | 20 784 (87) | 11 564 (87) | 11 557 (88) | 4449 (87) | 10 213 (87) | 9533 (88) | 6762 (87) | 10 454 (87) |
| Prior infection | 44 (4) | 75 (2) | 58 (2) | 60 (2) | 84 (1) | 1049 (5) | 2262 (6) | 299 (6) | 169 (4) | 537 (4) | 1249 (5) | 914 (7) | 1131 (9) | 560 (11) | 1178 (10) | 1114 (10) | 1079 (14) | 2588 (22) |
| Corticosteroid treatment | 75 (7) | 245 (7) | 258 (7) | 243 (7) | 348 (6) | 900 (4) | 1281 (4) | 288 (6) | 210 (5) | 432 (4) | 783 (3) | 453 (3) | 528 (4) | 204 (4) | 494 (4) | 556 (5) | 398 (5) | 704 (6) |
| Paxlovid | 0 | 0 | 0 | 0 | 0 | 1 (0.004) | 28 (0.08) | 95 (2) | 511 (12) | 3041 (25) | 6582 (28) | 3738 (28) | 4018 (31) | 1564 (30) | 3503 (30) | 3095 (28) | 2282 (29) | 3977 (33) |
| Remedsivir | 45 (4) | 144 (4) | 162 (4) | 133 (4) | 212 (4) | 506 (2) | 713 (2) | 134 (3) | 86 (2) | 212 (2) | 370 (2) | 215 (2) | 275 (2) | 139 (3) | 258 (2) | 335 (3) | 355 (5) | 684 (6) |
| Elixhauser comorbidity index, mean (SD) | 1.54 (2.3) | 1.52 (2.3) | 1.63 (2.3) | 1.74 (2.4) | 1.67 (2.3) | 1.53 (2.2) | 1.72 (2.4) | 2.04 (2.8) | 1.85 (2.5) | 1.93 (2.4) | 1.98 (2.4) | 2.07 (2.5) | 2.32 (2.6) | 2.46 (2.7) | 2.50 (2.7) | 2.67 (2.8) | 2.77 (3.0) | 2.93 (3.0) |
| Hospitalization | 87 (8) | 209 (6) | 223 (6) | 195 (6) | 269 (5) | 661 (3) | 929 (3) | 339 (7) | 180 (4) | 323 (3) | 590 (2) | 358 (3) | 479 (4) | 218 (4) | 442 (4) | 536 (5) | 413 (5) | 808 (7) |
| Mortality | 8 (0.70) | 16 (0.43) | 23 (0.60) | 26 (0.73) | 51 (0.89) | 78 (0.35) | 132 (0.37) | 30 (0.62) | 25 (0.60) | 27 (0.22) | 48 (0.20) | 24 (0.18) | 30 (0.23) | 17 (0.33) | 44 (0.37) | 48 (0.44) | 43 (0.55) | 54 (0.45) |
a
Unless otherwise indicated, data are expressed as No. (%) of cases. Numbers are obfuscated (thus sums may not add up to true marginal totals), and percentages are rounded.
b
Other includes American Indian or Alaska Native, Arab, Native Hawaiian or other Pacific Islander, multiple races, or other. Unknown refers to unknown or declined to answer. Race was self-identified by patients within their electronic health record.