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Table 3 In-hospital mortality by month of surgery

From: Cardiac surgery outcome during the COVID-19 pandemic: a retrospective review of the early experience in nine UK centres

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