Ā | Unadjusted OR | 95% CI | p value |
---|---|---|---|
Year of surgery | |||
ā2011 | Ref | Ā | Ā |
ā2012 | 0.808 | 0.670ā0.973 | 0.025 |
ā2013 | 0.702 | 0.584ā0.843 | ā<ā0.0001 |
ā2014 | 0.523 | 0.437ā0.626 | ā<ā0.0001 |
ā2015 | 0.473 | 0.388ā0.577 | ā<ā0.0001 |
ā2016 | 0.361 | 0.295ā0.441 | ā<ā0.0001 |
ā2017 | 0.290 | 0.238ā0.353 | ā<ā0.0001 |
ā2018 | 0.276 | 0.210ā0.362 | ā<ā0.0001 |