Period | 30 days mortality after surgeries | ||||
N°, of operated patients | % | RR | 95% CI | p value | |
First quarter 2015 | 2506 | 1.64 | – | – | – |
Second quarter 2015 | 2469 | 2.19 | 1.34 | 0.88 to 2.04 | n.s. |
Third quarter 2015 | 2322 | 2.02 | 1.24 | 0.80 to 1.91 | n.s. |
Fourth quarter 2015 | 2457 | 2.20 | 1.24 | 0.80 to 1.91 | n.s. |