Association between markers of inflammation and outcomes after hip fracture surgery: analysis of routinely collected electronic healthcare data

Table 3 C-statistics with 95% confidence intervals (CI) demonstrating the discriminant ability of each combination of NHFS and inflammatory biomarker for each postoperative outcome

	NHFS	NHFS + Albumin	NHFS + CRP	NHFS + NLR	NHFS + MLR
Mortality at 30 days (n = 1039)	0.68 (0.62–0.75)	0.74 (0.68–0.80)	0.70 (0.64–0.76)	0.70 (0.62–0.75)	0.70 (0.64–0.76)
Length of stay ≥ 28 days (n = 968)*	0.58 (0.54–0.61)	0.59 (0.55–0.63)	0.58 (0.55–0.62)	0.60 (0.57–0.64)	0.59 (0.55–0.63)
Did not return home at 30 days (n = 735)*	0.66 (0.62–0.70)	0.68 (0.64–0.72)	0.67 (0.63–0.71)	0.68 (0.64–0.72)	0.67 (0.63–0.71)

NHFS: Nottingham Hip Fracture Score; CRP: C-reactive protein; NLR: Neutrophil-to-lymphocyte ratio; MLR: Monocyte-to-lymphocyte ratio. *Analysis of postoperative discharge destination at 30 days only included patients admitted from their own homes or sheltered housing. Analysis of hospital LOS and postoperative discharge destination at 30 days excluded any patients who died within this period

ISSN: 1471-2318