“…As mentioned previously, these findings suggest delay of surgery may be a confounding factor related to the dependent (mortality) and the independent variables (comorbidity), rather than a causative factor of mortality. This idea is further supported by studies showing, after adjusting for patient age, gender, and comorbidities, surgical delay greater than 1 day does not lead to an increase of mortality [21,24,30,47]. However, other studies have shown, even after adjusting for comorbidities, surgical delay greater than 48 hours led to an increase in 30-day and 1-year mortality rates [7,34,37,41,50].…”