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Table 1 Proposed score, ranging from 0 to 4, to predict mortality after hip fracture

From: Use of the neutrophil-to-lymphocyte ratio as a component of a score to predict postoperative mortality after surgery for hip fracture in elderly subjects

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

  
  1. 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)
  2. 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