Table 1 Demographic characteristics and perioperative data of patients (n = 498). Data were presented as the mean ± standard deviation, the number (percentile) or median [25th,75th interquartile range]
|  | Total (n = 498) | Complications | P | Mortality | P | |||
|---|---|---|---|---|---|---|---|---|
yes(n = 176) | no(n = 322) | Alive(n = 488) | Dead(n = 10) | |||||
Age, years old | 85.8 ± 4.3 | 86.2 ± 4.3 | 85.6 ± 4.4 | 0.113 | 85.9 ± 4.3 | 87.5 ± 5.0 | 0.239 | |
BMI(Kg/m2) | 21.9 ± 4.0 | 21.8 ± 4.3 | 21.9 ± 3.9 | 0.285 | 21.9 ± 4.1 | 20.6 ± 3.6 | 0.438 | |
Sex | Â | Â | Â | 0.719 | Â | Â | 0.007 | |
 Male | 155(31.1%) | 53(30.1%) | 102(31.7%) |  | 148(30.3%) | 7(70%) |  | |
 Female | 343(68.9%) | 123(69.9%) | 220(68.3%) |  | 340(69.7%) | 3(30%) |  | |
ASA | 3 [3,3] | 3 [3,3] | 3 [3,3] | 0.178 | 3[3,3] | 3[3,4] | 0.031 | |
 II | 90(18.1%) | 26(14.8%) | 64(19.9%) |  | 90(18.4%) | 0 |  | |
 III | 369(74.1%) | 135(76.7%) | 234(72.7%) |  | 362(74.2%) | 7(70%) |  | |
 IV | 37(7.4%) | 14(8.0%) | 23(7.1%) |  | 34(7.0%) | 3(30%) |  | |
 V | 2(0.4%) | 1(0.6%) | 1(0.3%) |  | 2(0.4%) | 0 |  | |
CCI | 0 [0,1] | 1 [0,1] | 0 [0,1] | 0.019 | 0[0,1] | 2[1.5,3.0] | < 0.001 | |
 0 | 281(56.4%) | 87(49.4%) | 194(60.2%) |  | 279(57.2%) | 2(20%) |  | |
 1 | 122(24.5%) | 49(27.8%) | 73(22.7%) |  | 122(25.0%) | 0 |  | |
 2 | 70(14.1%) | 29(16.5%) | 41(12.7%) |  | 65(13.3%) | 5 (50%) |  | |
 3 | 21(4.2%) | 8(4.5%) | 13(4.0%) |  | 19(3.9%) | 2 (20%) |  | |
 4 | 2(0.4%) | 1(0.6%) | 1(0.3%) |  | 2(0.4%) | 0 |  | |
 5 | 2(0.4%) | 2(1.1%) | 0 |  | 1(0.2%) | 1 (10%) |  | |
Anemia | 203(40.8%) | 79(44.9%) | 124(38.5%) | 0.166 | 198(40.6%) | 5(50%) | 0.971 | |
Perioperative transfusion | 253(50.8%) | 110(62.5%) | 143(44.4%) | 0.000 | 243(49.8%) | 10(100%) | 0.002 | |
Fracture type | 0.488 | Â | Â | 0.284 | ||||
 intracapsular fracture | 282(56.6%) | 96(54.5%) | 186(57.8%) |  | 278(57%) | 4(40%) |  | |
 extracapsular fracture | 212(42.6%) | 80(45.5%) | 136(4.2%) |  | 210(43%) | 6(60%) |  | |
Time from fracture to surgery(day) | 5[2,10] | 5[2.25,10] | 5[2,10] | 0.661 | 5[2,10] | 4.5[2.0,9.25] | 0.745 | |
Surgical procedures | 0.661 | Â | Â | Â | ||||
 Internal fixation | 218(43.8%) | 80(45.5%) | 138 (42.8%) |  | 212(43.4%) | 6(60%) |  | |
 Hemiarthroplasty | 279(56.0%) | 96(54.5%) | 183 (56.8%) |  | 275(56.4%) | 4(40%) |  | |
 Total hip arthroplasty | 1(0.3%) | 0 | 1(0.3%) |  | 1(0.2%) | 0 |  | |
Anesthetic type | 0.301 | Â | Â | 0.701 | ||||
 General anesthesia | 269(54.0%) | 101(57.4%) | 168(52.2%) |  | 263(53.9%) | 6(60%) |  | |
 Regional anesthesia | 229(46.0%) | 75(42.6%) | 154(47.8%) |  | 225(46.1%) | 4(40%) |  | |
The duration of procedure(minute) | 77[60,98] | 78[61,97] | 76[57,100.75] | 0.725 | 77[60,98] | 78.5[58,149.25] | 0.534 | |
Admission to ICU | 293(58.8%) | 127(72.2%) | 166(51.6%) | < 0.001 | 185(58.4%) | 8(80%) | 0.007 | |
Length of hospital stay(day) | 12[9,18] | 16[11,22] | 11[8,15] | < 0.001 | 12[9,17] | 14.5[8,35] | 0.452 | |