Surgical outcomes for patients undergoing spinal or general anesthesia for hip fracture surgery after propensity-score matching
| Outcomes | Total (n=14 716) | Spinal (n=7358) | General (n=7358) | OR, general vs spinal (95% CI) | P value |
| Operative time (min), mean (SD) | 62.51 (36.82) | 60.28 (32.93) | 64.73 (40.22) | <0.001 | |
| Total hospital LOS (days), mean (SD) | 6.01 (10.67) | 6.29 (11.78) | 5.73 (9.42) | 0.001 | |
| 30-day complications, % (n) | |||||
| Combined stroke/MI/death rate | 7.26 (1068) | 6.59 (485) | 7.92 (583) | 1.219 (1.076 to 1.381) | 0.002 |
| Death | 5.02 (739) | 4.44 (327) | 5.60 (412) | 1.276 (1.099 to 1.481) | 0.001 |
| Stroke | 0.75 (110) | 0.76 (56) | 0.73 (54) | 0.964 (0.664 to 1.401) | 0.85 |
| Myocardial infarction | 2.09 (308) | 1.93 (142) | 2.26 (166) | 1.171 (0.935 to 1.468) | 0.17 |
| Reoperation | 2.01 (296) | 1.90 (140) | 2.12 (156) | 1.119 (0.887 to 1.411) | 0.35 |
| Acute renal failure | 0.27 (40) | 0.18 (13) | 0.37 (27) | 2.077 (1.072 to 4.025) | 0.027 |
| Cardiac arrest requiring CPR | 0.54 (80) | 0.49 (36) | 0.60 (44) | 1.229 (0.786 to 1.919) | 0.37 |
| Unplanned intubation | 0.80 (118) | 0.71 (52) | 0.90 (66) | 1.269 (0.882 to 1.825) | 0.20 |
| Ventilator support >48 hours | 0.35 (52) | 0.30 (22) | 0.41 (30) | 1.364 (0.787 to 2.364) | 0.27 |
| DVT or thrombophlebitis | 0.90 (132) | 0.72 (53) | 1.07 (79) | 1.510 (1.060 to 2.151) | 0.023 |
| Pulmonary embolism | 0.73 (108) | 0.77 (57) | 0.69 (51) | 0.893 (0.610 to 1.307) | 0.56 |
| Postoperative delirium | 25.58 (3765) | 25.80 (1898) | 25.37 (1867) | 0.978 (0.908 to 1.053) | 0.56 |
a: alpha level set at 0.05.
CPR, cardiopulmonary resuscitation; DVT, deep vein thrombosis; LOS, length of stay; MI, myocardial infarction.