Patient and provider characteristics for patients with acute myocardial infarction in the covid-19 (March 2020-February 2021) versus precovid-19 study period (March 2019-February 2020)
| Characteristics | Precovid-19 period (March 2019-February 2020) (n=138 133) | Covid-19 period (March 2020-February 2021) (n=111 580) |
| Age, years: | ||
| Mean, SD | 66.63 (13.12) | 66.17 (13.04) |
| 18-49 | 14 553 (10.54) | 12 172 (10.91) |
| 50-59 | 26 644 (19.29) | 22 102 (19.81) |
| 60-69 | 37 339 (27.03) | 31 056 (27.83) |
| ≥70 | 59 597 (43.14) | 46 250 (41.45) |
| Gender: | ||
| Male | 87 259 (63.17) | 71 598 (64.17) |
| Female | 50 874 (36.83) | 39 982 (35.83) |
| Race: | ||
| White | 109 802 (79.49) | 90 108 (80.76) |
| Black | 14 740 (10.67) | 11 866 (10.63) |
| Asian | 2914 (2.11) | 2276 (2.04) |
| Other | 10 677 (7.73) | 7330 (6.57) |
| Marital Status: | ||
| Married | 65 621 (47.51) | 53 081 (47.57) |
| Single | 59 314 (42.94) | 48 327 (43.31) |
| Other | 13 198 (9.55) | 10 172 (9.12) |
| Payor: | ||
| Commercial | 32 532 (23.55) | 27 356 (24.52) |
| Medicaid | 12 817 (9.28) | 11 048 (9.90) |
| Medicare | 80 576 (58.33) | 63 131 (56.58) |
| Other | 12 208 (8.84) | 10 045 (9.00) |
| Elixhauser score: | ||
| 0 | 4615 (3.34) | 3602 (3.23) |
| 1 | 15 372 (11.13) | 11 913 (10.68) |
| ≥2 | 118 146 (85.53) | 96 065 (86.10) |
| Congestive heart failure: | 58 943 (42.67) | 47 645 (42.70) |
| Hypertension | 114 858 (83.15) | 92 434 (82.84) |
| Diabetes | 57 420 (41.57) | 45 391 (40.68) |
| Obesity | 32 109 (23.24) | 28 552 (25.59) |
| Atrial fibrillation | 22 634 (16.39) | 17 781 (15.94) |
| Transient ischemic attack | 312 (0.23) | 258 (0.23) |
| Coronary artery disease | 117 244 (84.88) | 94 567 (84.75) |
| Dyslipidemia | 100 739 (72.93) | 82 526 (73.96) |
| Smoking | 36 603 (26.50) | 30 140 (27.01) |
| No of beds: | ||
| 0-299 | 46 559 (33.71) | 38 813 (34.78) |
| 300-500 | 45 620 (33.03) | 36 249 (32.49) |
| >500 | 45 954 (33.27) | 36 518 (32.73) |
| Region: | ||
| Midwest | 34 822 (25.21) | 28 534 (25.57) |
| Northeast | 18 047 (13.06) | 14 175 (12.70) |
| South | 65 493 (47.41) | 52 906 (47.42) |
| West | 19 771 (14.31) | 15 965 (14.31) |
| Urban-rural status: | ||
| Rural | 18 056 (13.07) | 14 628 (13.11) |
| Urban | 120 077 (86.93) | 96 952 (86.89) |
| Teaching | 69 133 (50.05) | 54 760 (49.08) |
| Percutaneous coronary intervention | 84 046 (60.84) | 70 491 (63.18) |
Data are number (percentage), unless otherwise specified. IQR=interquartile range; SD=standard deviation.