Table 4 Univariate and multivariate COX regression analysis of all-cause mortality associated with perioperative AHF in elderly patients with hip fracture

Age > =75 years

1.343(0.658–2.742)

0.418

Gender

1.042(0.576–1.885)

0.892

Comodity

 Hypertension

0.771(0.454–1.307)

0.334

 Stroke

1.206(0.712–2.043)

0.485

 Conoary artery diease

1.611(0.832–3.118)

0.157

2.096(1.046–4.197)

0.037

 Diabetes

0.598(0.340–1.052)

0.075

0.487(0.268–0.884)

0.018

 COPD

0.342(0.106–1.104)

0.073

0.509(0.151–1.719)

0.277

 Arrhythmology

1.930(0.266–13.990)

0.515

 Cancer

0.323(0.128–0.816)

0.017

0.252(0.095–0.669)

0.006

 Fracture type

1.518(0.893–2.578)

0.123

1.470(0.827–2.614)

0.190

 Fracture site

0.790(0.465–1.343)

0.384

 The time from injury to hospital admission < 48 hours

1.498(0.838–2.677)

0.173

1.786(0.967–3.297)

0.064

Laboratory index

 Admission Hb < 100 g/L

1.205(0.656–2.213)

0.547

 Admission Alb< 40 g/L

0.813(0.384–1.721)

0.588

 Admission CRP > 5 mg/dL

0.940(0.438–2.016)

0.873

Perioperative complications

 Deep vein thrombosis

0.685(0.404–1.161)

0.160

0.714(0.414–1.230)

0.225

 Pulmonary infection

0.615(0.358–1.056)

0.078

0.565(0.322–0.981)

0.046

 Adverse cardiovascular events

0.746(0.429–1.298)

0.300

 Acute cerebrovascular disease

1.109(0.475–2.589)

0.812

 Stress hyperglycemia

1.434(0.770–2.671)

0.255

 Stress ulcer

1.850(0.255–13.413)

0.543

 Urinary tract infection

0.467(0.168–1.300)

0.145

0.341(0.118–0.988)

0.047

 Anaemia

1.234(0.649–2.345)

0.522

 Hypoproteinemia

0.758(0.356–1.612)

0.472

 Electrolyte disturbance

0.926(0.528–1.623)

0.788

 Hospital stay

1.030(0.986–1.076)

0.180

1.020(0.954–1.089)

0.567

 Anesthesia

0.972(0.864–1.093)

0.632

 Surgical type

1.391(0.816–2.370)

0.225

 Preoperative waiting time

1.053(0.982–1.130)

0.147

1.015(0.909–1.133)

0.791

 Intraoperative blood loss

1.000(0.998–1.002)

0.834

 Operation time

0.994(0.986–1.002)

0.125

0.994(0.986–1.002)

0.147