Total | Negative HBL group | Positive HBL group | P value | |
---|---|---|---|---|
Number of patients | 150 | 93 | 57 | |
Age (year) | 38.1 (10.3) | 34.3 (9.5) | 49.2 (8.1) | <0.001 |
Sex (%) | ||||
 Female | 99 (66.0) | 60 (64.5) | 39 (68.4) | 0.711 |
 Male | 51 (34.0) | 33 (35.5) | 18 (31.6) | |
BMI (%) | ||||
 < 25 | 77 (51.3) | 53 (57.0) | 24 (42.1) | 0.065 |
 ≧25 | 73 (48.7) | 40 (43.0) | 33 (57.9) | |
Hypertension (%) | ||||
 No | 56(37.3) | 45 (48.4) | 11 (19.3) | <0.001 |
 Yes | 94 (62.7) | 50 (51.6) | 46 (80.7) | |
Diabetes (%) | ||||
 No | 63 (42.0) | 53 (57.0) | 10 (17.5) | 0.017 |
 Yes | 87 (58.0) | 40 (43.0) | 47 (82.5) | |
History of smoking (%) | ||||
 No | 77 (51.3) | 61 (65.6) | 16 (28.1) | <0.001 |
 Yes | 73 (48.7) | 32 (34.4) | 41 (71.9) | |
History of alcohol (%) | ||||
 No | 68 (42.5) | 40 (38.8) | 28 (49.1) | 0.165 |
 Yes | 92 (57.5) | 63 (61.2) | 29 (50.9) | |
Chronic steroid use (%) | ||||
 No | 133 (88.7) | 80 (86.0) | 53 (93.0) | 0.321 |
 Yes | 17 (11.3) | 13 (14.0) | 4 (7.00) | |
COPD (%) | ||||
 No | 145 (96.7) | 90 (96.8) | 55 (96.5) | 0.965 |
 Yes | 5 (3.30) | 3 (3.20) | 2 (3.50) | |
History of blood transfusion (%) | ||||
 No | 149 (99.3) | 92 (98.9) | 57 (100.0) | 0.421 |
 Yes | 1 (0.7) | 1 (1.10) | 0 (0.00) | |
Preoperative VAS | 5.9 [4.9, 7.1] | 6.8 [4.8, 7.0] | 5.8 [4.9, 7.0] | 0.265 |
Preoperative JOA | 12.7 [10.0, 16.5] | 13.1 [10.0, 16.0] | 13.2 [10.8, 15.5] | 0.228 |
Preoperative SF-36 | 70.6 (5.4) | 71.3 (6.0) | 69.9 (6.8) | 0.65 |
Duration from admission to surgery (day) | 0.6 (0.5) | 0.48 (0.5) | 0.72 (0.3) | 0.021 |
Length of surgical incision (cm) | 14.0 (1.6) | 12.9 (1.1) | 15.8 (0.9) | <0.001 |
Duration of operation (min) | 164.6 (18.4) | 157.0 (13.8) | 178.2(15.5) | <0.001 |
P1% | 38.3 [36.7, 44.1] | 37.2 [36.0, 36.4] | 46.0 [41.4, 48.1] | <0.001 |
P2% | 29.7 [27.0, 31.8] | 30.9 [26.9, 34.7] | 28.5 [26.9, 30.9] | 0.011 |
Level | ||||
 T11 | 64 (43.0) | 43 (46.1) | 22 (37.9) | 0.637 |
 T12 | 63 (41.9) | 38 (40.8) | 25 (43.6) | |
 L1 | 23 (15.2) | 12 (13.1) | 11 (18.5) | |
Levels of fusion (%) | ||||
 T9-L1 | 73 (48.7) | 50 (53.8) | 23 (40.4) | 0.4408 |
 T10-L2 | 61 (40.7) | 36 (38.7) | 25 (43.9) | |
 T11-L3 | 16 (10.7) | 7 (7.50) | 9 (15.8) | |
Intraoperative infusion of crystalloids (ml) | 1569.0 [1317.0, 1862.3] | 1561.1 [1359.5, 1856.2] | 1538.1 [1239.2, 1889.9] | 0.706 |
Intraoperative infusion of colloids (ml) | 812.4 [627.0, 995.5] | 809.6 [618.0, 1011.3] | 815.1 [670.2, 939.5] | 0.876 |
Autologous blood transfusion (%) | ||||
 No | 120 (80.0) | 77 (82.8) | 43 (75.4) | 0.470 |
 Yes | 30 (20.0) | 16 (17.2) | 14 (24.6) | |
Allogeneic blood transfusion (%) | ||||
 No | 115 (76.7) | 75 (80.6) | 40 (70.2) | 0.775 |
 Yes | 35 (23.3) | 18 (19.4) | 17 (29.8) | |
Preoperative total cholesterol (mmol/L) | 4.7 [3.3, 6.4] | 3.7 [3.2, 5.0] | 6.8 [5.2, 7.0] | <0.001 |
Preoperative triglyceride (mmol/L) | 2.1 [1.4, 3.5] | 1.7 [1.0, 2.3] | 3.8 [3.2, 4.9] | <0.001 |
Preoperative Hct (%) | 40.9 (3.5) | 40.3 (3.9) | 42.6(4.4) | 0.405 |
Preoperative Hb (g/L) | 122.8 (13.4) | 124.2 (15.2) | 119.8 (10.2) | 0.017 |
Preoperative ALB (g/L) | 39.7 (4.8) | 39.2 (4.0) | 40.6 (4.3) | 0.040 |
Preoperative PT (s) | 10.2 (0.6) | 10.1 (0.4) | 10.9 (0.5) | <0.001 |
Preoperative APTT (s) | 33.4 (2.7) | 35.7 (2.8) | 32.9 (2.8) | <0.001 |
Preoperative Fib (mg/dL) | 4.7 (0.9) | 4.9 (1.0) | 4.6 (0.7) | 0.038 |