Cher EWL, et al. - Through a retrospective study of 1,004 patients with hip fractures, researchers examined the correlations of surgical delay and Charlson Comorbidity Index (CCI) with the risk of mortality and ascertained the dominant predictor. Study mortality rates were 1.1% (n = 11), 1.8% (n = 18), 2.7% (n = 27), and 13.3% (n = 129) during in-hospital admission, at 30 days, 90 days, and 2 years, respectively. At 2 years, lost to follow-up rate was 3.3%. In prognosticating both short- and long-term mortality, CCI was consistently the dominant factor. A CCI score of 5 was determined as the inflection point above which comorbidity at baseline exhibited a greater risk of mortality compared with a delay in surgery. Therefore, in comparison with delay in surgery, CCI is the dominant predictor of both short- and long-term mortality. Moreover, in the prediction of mortality in patients surgically treated for hip fractures, the impact of CCI is vital.