Month of surgery | All (n = 755) | Covid-19 negative (n = 702) | Covid-19 positive (n = 53) |
---|---|---|---|
March 2020 | |||
N(%) | 27 (3.6) | 17 (3.1) | 10 (32.3) |
Rate per 30 days (95%CI) | 0.13 (0.09–0.20) | 0.08 (0.05–0.14) | 0.67 (0.36–1.25) |
April 2020 | |||
N(%) | 9 (6.0) | 6 (4.7) | 3 (13.6) |
Rate per 30 days (95%CI) | 0.18 (0.08–0.37) | 0.13 (0.05–0.33) | 0.38 (0.12–1.16) |
P value | p = 0.528 | p = 0.107 | p = 0.195 |