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Table 4 The univariate and multivariate Cox regression analysis of factors associated with 1-year all-cause mortalitylight"/>

From: Combined Systemic Immune-inflammatory Index (SII) and Geriatric Nutritional Risk Index (GNRI) predict survival in elderly patients with hip fractures: a retrospective study

Variable

1–year mortality

Univariate

Multivariate

HR (95% CI)

P value

HR (95% CI)

P value

Age(years)

    

 < 80

1.0 (Reference)

   

 ≥ 80

1.69 (1.11–2.59)

0.015

0.76 (0.58–1.48)

0.757

Gender

    

 Male

1.0 (Reference)

   

 Female

0.86 (0.53–1.39)

0.543

Charlson Comorbidities Index

    

 ≤ 2

1.0 (Reference)

   

 > 2

3.51 (2.23–5.51)

0.000

2.10 (1.24–3.53)

0.005

Hypertension

1.31 (0.85–2.02)

0.216

Diabetes

1.10 (0.71–1.72)

0.673

Cerebral disease

1.75 (1.12–2.74)

0.014

1.05 (0.65–1.71)

0.844

Heart disease

2.86 (1.23–2.82)

0.003

1.33 (0.85–2.09)

0.216

Anemia

3.74 (2.45–5.70)

 < 0.001

1.39 (0.90–2.14)

0.135

Fracture type

    

Intertrochanteric

1.0 (Reference)

   

Neck

0.48 (0.32–0.73)

0.001

0.74 (0.47–1.16)

0.186

American Society of Anesthesiologists physical score

    

 ≤ 2

1.0 (Reference)

   

 > 2

2.39 (1.48–3.87)

 < 0.001

1.59 (0.94–2.71)

0.085

Albumin (per 1 g/L increase)

0.87 (0.88–0.91)

 < 0.001

Height(per 1 cm increase)

1.00 (0.98–1.03)

0.886

Weight(per 1 kg increase)

0.97 (0.96–0.99)

0.006

SII

2.69 (1.78–4.07)

 < 0.001

GNRI

4.27 (2.62–6.96)

 < 0.001

SII–GNRI score 1

1.0 (Reference)

   

SII–GNRI score 2

4.35 (2.19–8.63)

 < 0.001

3.68 (1.83–7.40)

 < 0.001

SII–GNRI score 3

11.27 (5.58–22.77)

 < 0.001

8.47 (4.10–17.49)

 < 0.001

length of stay (per 1 day increase)

1.03 (1.02–1.04)

 < 0.001

1.02 (1.00–1.03)

0.011

Blood transfusion (yes vs. no)

3.26 (2.11–5.01)

 < 0.001

2.20 (1.40–3.46)

0.001

  1. GNRI Geriatric Nutritional Risk Index, SII Systemic Immune-inflammatory Index, Heart disease coronary heart disease, myocardial infarction and heart failure; Cerebral disease Alzheimer's disease, Parkinson's disease and a history of cerebral infarction