Table 1.

Proposed score, ranging from 0 to 4, to predict mortality after hip fracture

Age (years)	Sex	NLR > 5 at postoperative day 5
65 to 74 = 0	Male = + 1	If yes = + 1
75 to 84 = + 1	Female = 0
Above 84 = + 2

Based on the previously observed coefficient factors, age is considered as decades in the score (0 point from 65 to 74 years, 1 point from 75 to 84 years and 2 points above 84 years). One point is added for males. Performance analysis of this score, ranging from 0 to 3, reveals no predictive value, with an AUC of 0.52 [95 % CI 0.43–0.60] (P = 0.69 vs. AUC = 0.5)

As planned, NLR > 5 at D5 after surgery was considered in the score, with one additional point when positive. Then, a score ranging from 0 to 4 is obtained for all the patients