Table 1 Baseline characteristics of patients with or without AHF in old patients with hip fracture

Age (IQR),years

80(73–85)

81(76–86)

76(71–83)

< 0.001

Age group,n(%)

< 0.001

 < 75 years

145(29.5)

68(21.4)

77(44.3)

 > = 75 years

347(70.5)

250(78.6)

97(55.7)

Gender,n(%)

0.835

 Males

147(29.9)

94(29.6)

53(30.5)

 Female

345(70.1)

224(70.4)

121(69.5)

Comodity,n(%)

 Hypertension

243(49.4)

157(49.4)

86(49.4)

0.991

 Stroke

267(54.3)

171(53.8)

96(55.2)

0.766

 Conoary artery diease

146(29.7)

83(26.1)

63(36.2)

0.019

 Diabetes

115(23.4)

76(23.9)

39(22.4)

0.710

 COPD

11(2.2)

9(2.8)

2(1.1)

0.228

 Arrhythmology

20(4.1)

10(3.1)

10(5.7)

0.162

 Cancer

20(4.1)

14(4.4)

6(3.4)

0.608

Fracture type,n(%)

0.626

 Femoral neck

267(54.3)

170(53.5)

97(55.7)

 Intertrochanteric

225(45.7)

148(46.5)

77(44.3)

Fracture site,n(%)

0.843

 Left

260(52.8)

167(52.5)

93(53.4)

 Right

232(47.2)

151(47.5)

81(46.6)

 The time from injury to hospital admission < 48 hours,n(%)

378(76.8)

245(77.0)

133(76.4)

0.879

 Laboratory index

  Admission Hb,n(%)

< 0.001

  < 10 g/L

105(21.3)

84(26.4)

21(12.1)

  > = 10 g/L

387(78.7)

234(73.6)

153(87.9)

 Admission Alb,n(%)

< 0.001

  < 40 g/L

381(77.4)

262(82.4)

119(68.4)

  > = 40 g/L

111(22.6)

56(17.6)

55(31.6)

 Admission CRP,n(%)

0.882

  <=5 mg/L

100(20.3)

64(20.1)

36(20.7)

  > 5 mg/L

392(79.7)

254(79.9)

138(79.3)

 Anesthesia,n(%)

0.587

  General

226(45.9)

141(44.3)

85(48.9)

  Regional

227(46.1)

150(47.2)

77(44.3)

  Both

39(7.9)

27(8.5)

12(6.9)

 Surgical type,n(%)

0.674

  Hip replacement

241(49.0)

158(49.7)

83(47.7)

  Closed reduction and internal fixation

251(51.0)

160(50.3)

91(52.3)

  Preoperative waiting time (IQR),days

4(3–6)

4(3–6)

5(3–6)

0.843

  Intraoperative blood loss (IQR),ml

200(200–300)

200(200–300)

215(200–300)

0.083