Demographic characteristics | Transfusion group(n = 167) | Non-transfusion group(n = 328) | Total(n = 495) |
---|---|---|---|
Gendera | |||
 Male | 80 (47.90%) | 217 (66.16%) | 297 (60.00%) |
 Female | 87 (52.10%) | 111 (33.84%) | 198 (40.00%) |
Course of disease(month)a | |||
 ≦6 | 106 (63.47%) | 238 (72.56%) | 344 (69.49%) |
 > 6 | 61 (36.53%) | 90 (27.44%) | 151 (30.51%) |
marriage | |||
 Yes | 145 (86.83%) | 272 (82.93%) | 417 (84.24%) |
 No | 22 (13.17%) | 56 (17.07%) | 78 (15.76%) |
Systolic blood pressure(mmHg) | |||
 ≦120 | 62 (37.13%) | 136 (41.46%) | 198 (40.00%) |
 > 120 | 105 (62.87%) | 192 (58.54%) | 297 (60.00%) |
Diastolic blood pressure(mmHg) | |||
 ≦80 | 95 (56.89%) | 192 (58.54%) | 287 (57.98%) |
 > 80 | 72 (43.11%) | 136 (41.46%) | 208 (42.02%) |
BMI(kg/m2)a | |||
 < 18.5 | 48 (28.74%) | 85 (25.91%) | 133 (26.87%) |
 18.5 ~ 24.9 | 107 (64.07%) | 206 (62.80%) | 313 (63.23%) |
 > 25 | 12 (7.19%) | 37 (11.28%) | 49 (9.90%) |
Paina | |||
 Yes | 164 (98.20%) | 305 (92.99%) | 469 (94.75%) |
 No | 3 (1.80%) | 23 (7.01%) | 26 (5.25%) |
Lower limb pain | |||
 Yes | 95 (56.89%) | 170 (51.83%) | 265 (53.54%) |
 No | 72 (43.11%) | 158 (48.17%) | 230,946.46%) |
Number of lower limb pain | |||
 0 | 71 (42.51%) | 158 (48.17%) | 229 (46.26%) |
 1 | 18 (10.78%) | 57 (17.38%) | 75 (15.15%) |
 2 | 78 (46.71%) | 113 (34.45%) | 191 (38.59%) |
Fatigue | |||
 Yes | 52 (31.14%) | 98 (29.88%) | 150 (30.30%) |
 No | 115 (68.86%) | 230 (70.12%) | 345 (69.70%) |
Fever | |||
 Yes | 55 (32.93%) | 88 (26.83%) | 143 (28.89%) |
 No | 112 (67.07%) | 240 (73.17%) | 352 (71.11%) |
Night sweatsa | |||
 Yes | 47 (28.14%) | 72 (21.95%) | 119 (24.04%) |
 No | 120 (71.86%) | 256 (78.05%) | 376 (75.96%) |
Appetitea | |||
 Yes | 89 (53.29%) | 215 (65.55%) | 304 (61.41%) |
 No | 78 (46.71%) | 113 (34.45%) | 191 (38.59%) |
Weight loss | |||
 Yes | 73 (43.71%) | 117 (35.67%) | 190 (38.38%) |
 No | 94 (56.29%) | 211 (64.33%) | 305 (61.62%) |
Surgical approach | |||
 Anterior | 99 (59.28%) | 190 (57.93%) | 289 (58.38%) |
 Posterior | 63 (37.73%) | 130 (39.63%) | 193 (38.99%) |
 Anteroposterior | 5 (2.99%) | 8 (2.44%) | 13 (2.63%) |
Focal segmentala | |||
 ≦2 | 124 (74.25%) | 273 (83.23%) | 397 (80.20%) |
 > 3 | 43 (25.75%) | 55 (16.77%) | 98 (19.80%) |
Intervertebral fusion device | |||
 Yes | 82 (49.10%) | 147 (44.82%) | 229 (46.26%) |
 No | 85 (50.90%) | 181 (55.18%) | 266 (53.74%) |
Internal fixationa | |||
 Yes | 158 (94.61%) | 281 (85.67%) | 439 (88.69%) |
 No | 9 (5.39%) | 47 (14.33%) | 56 (11.31%) |
ODIa | |||
 ≦18 | 87 (52.10%) | 206 (62.80%) | 293 (59.19%) |
 > 18 | 80 (47.90%) | 122 (37.20%) | 202 (40.81%) |
JOA | |||
 ≦20 | 106 (63.47%) | 190 (57.93%) | 296 (59.80%) |
 > 20 | 61 (36.53%) | 138 (42.07%) | 199 (40.20%) |
VAS | |||
 ≦7 | 83 (49.70%) | 167 (50.91%) | 250 (50.51%) |
 > 7 | 84 (50.30%) | 161 (49.09%) | 245 (49.49%) |
ASIA | |||
 Unimpaired | 100 (59.88%) | 219 (66.77%) | 319 (64.44%) |
 Impaired | 67 (40.12%) | 109 (33.23%) | 176 (35.56%) |
Age(year)a | |||
 < 60 | 85 (50.90%) | 236 (71.95%) | 321 (64.85%) |
 ≥60 | 82 (49.10%) | 92 (8.05%) | 174 (35.15%) |
Occupationa | |||
 Farmer | 109 (65.27%) | 191 (58.23%) | 300 (60.61%) |
 Not farmer | 58 (34.73%) | 137 (41.77%) | 195 (39.39%) |
Race | |||
 Han | 77 (46.11%) | 167 (50.91%) | 244 (49.29%) |
 non-Han | 90 (53.89%) | 161 (49.09%) | 251 (50,71%) |
Hospitalization days(day)a | |||
 ≦11 | 76 (45.51%) | 224 (68.29%) | 300 (60.61%) |
 > 11 | 91 (54.49%) | 104 (31.71%) | 195 (39.39%) |
Surgery classificationa | |||
 Grade 4 | 108 (64.67%) | 187 (57.01%) | 295 (59.60%) |
 Grade 1–3 | 59 (35.33%) | 141 (42.99%) | 200 (40.40%) |
Preoperative hospitalization days(day)a | |||
 ≦4 | 81 (48.50%) | 216 (65.85%) | 297 (60.00%) |
 > 4 | 86 (51.5%) | 112 (34.15%) | 198 (40.00%) |
Medical insurance | |||
 NCMS | 88 (52.69%) | 174 (53.05%) | 262 (52.93%) |
 Non- NCMS | 79 (47.31%) | 154 (46.95%) | 233 (47.07%) |
Blood glucose(mmol/L)a | |||
 3.9 ~ 6.1 | 138 (82.63%) | 252 (76.83% | 390 (78.79%) |
 < 3.9 or > 6.1 | 29 (17.37%) | 76 (23.17%) | 105 (21.21%) |
Blood type | |||
 A | 37 (22.16%) | 62 (18.90%) | 99 (20.00%) |
 B | 46 (27.54%) | 89 (27.113% | 135 (27.27%) |
 AB | 7 (4.19%) | 24 (7.32%) | 31 (6.26%) |
 O | 77 (46.11%) | 153 (46.65%) | 230 (46.46%) |
C-reactive protein(mg/L) | |||
 ≦10 | 65 (38.92%) | 148 (45.12%) | 213 (43.03%) |
 > 10 | 102 (61.08%) | 180 (54.88%) | 282 (56.79%) |
Hepatitis B surface antigen | |||
 Positive | 14 (8.38%) | 32 (9.76%) | 46 (9.29%) |
 Negative | 153 (91.62%) | 296 (90.24%) | 449 (90.71%) |
White blood cells(a109/L)a | |||
 4 ~ 10 | 141 (84.43%) | 264 (80.49%) | 405 (81.82%) |
 < 4 or > 10 | 26 (15.57%) | 64 (19.51%) | 90 (18.18%) |
Hemoglobin(g/L)a | |||
 < 120 | 108 (64.67%) | 206 (62.80%) | 314 (63.43%) |
 ≥120 | 59 (35.33%) | 122 (37.20%) | 181 (36.57%) |
Platelets(a109/L) | |||
 100–300 | 92 (55.09%) | 178 (54.27%) | 270 (54.55%) |
 < 100 or > 300 | 75 (44.91%) | 150 (45.73%) | 225 (45.45%) |
Percentage of neutrophils(%) | |||
 0.5–0.7 | 96 (57.49%) | 196 (59.76%) | 292 (58.99%) |
 < 0.5 or > 0.7 | 71 (42.51%) | 132 (40.24%) | 203 (41.01%) |
Percentage of lymphocytes(%)a | |||
 0.2–0.4 | 80 (47.90%) | 193 (58.84%) | 273 (55.15%) |
 < 0.2 or > 0.4 | 87 (52.10%) | 135 (41.16%) | 222 (44.85%) |
Absolute monocytes(a109/L) | |||
 0.12–0.8 | 134 (80.24%) | 257 (78.35%) | 391 (78.99%) |
 < 0.12 or > 0.8 | 33 (19.76%) | 71 (21.65%) | 104 (21.01%) |
Percentage of monocytes(%) | |||
 0.03–0.08 | 63 (37.72%) | 125 (38.11%) | 188 (37.98%) |
 < 0.03 or > 0.08 | 104 (62.28%) | 203 (61.89%) | 307 (62.02%) |
Total bilirubin(umol/L) | |||
 3.4–17.1 | 140 (83.83%) | 279 (85.06%) | 419 (84.65%) |
 < 3.4 or > 17.1 | 27 (16.17%) | 49 (14.94%) | 76 (15.35%) |
Direct bilirubin(umol/L) | |||
 ≦6.8 | 149 (89.22%) | 306 (93.29%) | 455 (91.92%) |
 > 6.8 | 18 (10.78%) | 22 (6.17%) | 40 (8.08%) |
Indirect bilirubin(umol/L) | |||
 1.7–10.2 | 139 (83.23%) | 283 (86.28%) | 422 (85.25%) |
 < 1.7 or > 10.2 | 28 (16.77%) | 45 (13.72%) | 73 (14.75%) |
Total protein(g/L) | |||
 60–80 | 135 (80.84%) | 271 (82.62%) | 406 (82.02%) |
 < 60 or > 80 | 32 (19.16%) | 57 (17.38%) | 89 (17.98%) |
Albumin(g/L)a | |||
 ≥40 | 36 (21.56%) | 125 (38.11%) | 161 (32.53%) |
 < 40 | 131 (78.44%) | 203 (61.89%) | 334 (67.47%) |
Aspartate aminotransferase(U/L) | |||
 10–40 | 146 (87.43%) | 290 (88.41%) | 436 (88.08%) |
 < 10 or > 40 | 21 (12.57%) | 38 (11.59%) | 59 (11.92%) |
Alanine aminotransferase(U/L) | |||
 10–40 | 118 (70.66%) | 242 (73.78%) | 360 (72.73%) |
 < 10 or > 40 | 49 (29.34%) | 86 (26.22%) | 135 (27.27%) |
AST/ALTa | |||
 ≦1 | 125 (74.85%) | 128 (39.02%) | 253 (51.11%) |
 > 1 | 42 (25.15%) | 200 (60.98%) | 242 (48.89%) |
Blood urea(mmol/L)a | |||
 3.2–7.1 | 129 (77.25%) | 226 (68.90%) | 355 (71.72%) |
 < 3.2 or > 7.1 | 38 (22.75%) | 102 (31.10%) | 140 (28.28%) |
Blood creatinine(umol/L) | |||
 76–88.41 | 29 (17.37%) | 63 (19.21%) | 92 (18.59%) |
 < 76 or > 88.41 | 138 (82.63%) | 265 (80.79%) | 403 (84.41%) |
Blood uric acid(umol/L)a | |||
 208–428 | 82 (49.10%) | 179 (54.57%) | 261 (52.73%) |
 < 208 or > 428 | 85 (50.90%) | 149 (45.43%) | 234 (47.27%) |
Erythrocyte sedimentation rate(mm/h) | |||
 ≦20 | 39 (23.35%) | 103 (31.40%) | 142 (28.69%) |
 > 20 | 128 (76.65%) | 225 (68.60%) | 353 (71.31%) |
Total cholesterol(mmol/L)a | |||
 2.86–5.98 | 145 (86.83%) | 270 (82.32%) | 415 (83.84%) |
 < 2.86 or > 5.98 | 22 (13.17%) | 58 (17.68%) | 80 (16.16%) |
Triglyceride(mmol/L) | |||
 0.56–1.7 | 143 (85.63%) | 273 (83.23%) | 416 (84.04%) |
 < 0.56 or > 1.7 | 24 (14.37%) | 55 (16.77%) | 79 (15.96%) |
High density lipoprotein cholesterol(mmol/L)a | |||
 0.94–2 | 114 (68.26%) | 260 (79.27%) | 374 (75.56%) |
 < 0.94 or > 2 | 53 (31.74%) | 68 (20.73%) | 121 (24.44%) |
Low density lipoprotein cholesterol(mmol/L) | |||
 2.07–3.12 | 82 (49.10%) | 138 (42.07%) | 220 (44.44%) |
 < 2.07 or > 3.12 | 85 (50.90%) | 190 (57.93%) | 275 (55.56%) |