Table 2. Volume and IRR of Exemplar Procedures During Initial Shutdown and COVID-19 Surge Compared With Prepandemic Rates.
| Surgical procedure | Initial shutdowna | COVID-19 surgeb | ||||||
|---|---|---|---|---|---|---|---|---|
| Procedure volume, No. | IRR (95% CI) | P value | Procedure volume, No. | IRR (95% CI) | P value | |||
| 2019 | 2020 | 2019 | 2020 | |||||
| Cataract repair | 13 564 | 1396 | 0.11 (−0.11 to 0.32) | .03 | 24 430 | 23 797 | 1.00 (0.90 to 1.09) | .95 |
| Bariatric surgical procedure | 5697 | 630 | 0.12 (−0.06 to 0.30) | .006 | 11 148 | 9371 | 0.89 (0.75 to 1.03) | .15 |
| Knee arthroplasty | 20 131 | 2667 | 0.13 (−0.07 to 0.32) | .009 | 40 637 | 36 619 | 0.86 (0.73 to 0.98) | .04 |
| Hip arthroplasty | 12 578 | 2525 | 0.19 (0.01 to 0.37) | <.001 | 24 356 | 22 961 | 0.90 (0.77 to 1.04) | .18 |
| Groin hernia repair | 12 378 | 2815 | 0.23 (0.05 to 0.41) | <.001 | 23 625 | 21 391 | 0.92 (0.86 to 0.99) | .03 |
| Thyroidectomy | 2652 | 985 | 0.38 (0.22 to 0.55) | <.001 | 5129 | 4786 | 0.96 (0.88 to 1.05) | .40 |
| Spinal fusion | 3859 | 1592 | 0.42 (0.25 to 0.59) | <.001 | 7439 | 7473 | 1.02 (0.93 to 1.12) | .65 |
| Laminectomy | 3199 | 1512 | 0.51 (0.34 to 0.68) | <.001 | 6068 | 5734 | 1.01 (0.94 to 1.09) | .71 |
| Coronary artery bypass graft | 3099 | 1624 | 0.61 (0.45 to 0.76) | <.001 | 5186 | 4399 | 0.99 (0.85 to 1.12) | .83 |
| Appendectomy | 10 581 | 7304 | 0.71 (0.64 to 0.78) | <.001 | 18 488 | 17 198 | 0.96 (0.90 to 1.02) | .22 |
| Lower extremity amputation | 1642 | 1426 | 0.90 (0.77 to 1.03) | .16 | 2660 | 2863 | 1.12 (0.98 to 1.25) | .08 |
| Cesarean delivery | 32 345 | 30 398 | 0.98 (0.94 to 1.03) | .42 | 61 447 | 56 131 | 0.95 (0.90 to 1.01) | .11 |
Abbreviation: IRR, incidence rate ratio.
a
Weeks 12 through 18, 2020 (March 15-May 2, 2020).
b
Weeks 44, 2020, through 4, 2021 (October 25, 2020-January 30, 2021).