Table 1.
Characteristic in patients with different GNRI.
| Characteristic | Total (n = 91) | GNRI | p-value | |
|---|---|---|---|---|
| Low-GNRI (<98.6), n = 31 | High-GNRI (≥98.6), n = 60 | |||
| Demographic | ||||
| Age (years) | 70.49 ± 3.91 | 70.94 ± 3.98 | 70.27 ± 3.88 | 0.442 |
| Sex (male, %) | 44 (48.35) | 14 (45.16) | 30 (50.00) | 0.662 |
| CCI | 1.21 ± 1.06 | 2.06 ± 0.73 | 1.40 ± 1.14 | 0.004* |
| Hypertension, n (%) | 28 (30.77) | 10 (32.26) | 18 (30.00) | 0.825 |
| Smoking history, n (%) | 10 (10.99) | 2 (6.45) | 8 (13.33) | 0.521 |
| Drinking history, n (%) | 13 (14.29) | 4 (12.90) | 9 (15.00) | 1.000 |
| Duration of illness (months) | 4.13 ± 2.26 | 3.90 ± 2.10 | 4.25 ± 2.35 | 0.491 |
| Duration of anti-TB agents (months) | 1.27 ± 0.75 | 1.24 ± 0.72 | 1.30 ± 0.78 | 0.729 |
| ESR (mm/1 h) | 48.71 ± 13.67 | 48.85 ± 16.89 | 48.64 ± 11.84 | 0.946 |
| CRP (mg/L) | 28.55 ± 6.03 | 29.80 ± 6.91 | 27.90 ± 5.46 | 0.156 |
| Length of hospital day | 11.05 ± 3.66 | 11.64 ± 4.08 | 10.75 ± 3.41 | 0.271 |
| Vertebral body involvement | ||||
| Abscess, n (%) | 54 (59.34) | 18 (58.06) | 36 (60.00) | 0.859 |
| Kyphotic deformity, n (%) | 32 (35.16) | 10 (32.26) | 22 (36.67) | 0.676 |
| Number of involed verterbrae, n (%) | 0.533 | |||
| 1 | 7 (7.69) | 2 (6.45) | 5 (8.33) | |
| 2–3 | 69 (75.82) | 22 (70.98) | 47 (78.33) | |
| >3 | 15 (16.48) | 7 (22.58) | 8 (13.33) | |
| Location of lesions, n (%) | 0.911 | |||
| Cervical | 11 (12.09) | 4 (12.90) | 7 (11.67) | |
| Thoracic | 41 (45.05) | 13 (41.94) | 28 (46.67) | |
| Lumbosacral | 39 (42.86) | 14 (45.16) | 25 (41.67) | |
| Franked scale, n (%) | 0.183 | |||
| B | 2 (2.20) | 0 (0.00) | 2 (3.33) | |
| C | 12 (13.19) | 3 (9.68) | 9 (15.00) | |
| D | 25 (27.47) | 6 (19.35) | 19 (31.67) | |
| E | 52 (57.14) | 22 (70.97) | 30 (50.00) | |
| Extra-osseous lesions, n (%) | 18 (19.78) | 6 (19.35) | 12 (20.00) | 0.074 |
| Surgical factors | ||||
| Operative time (minutes) | 196.80 ± 77.66 | 202.08 ± 93.45 | 194.07 ± 75.01 | 0.644 |
| Estimated blood loss (mL) | 627.25 ± 253.19 | 650.44 ± 277.09 | 615.27 ± 241.49 | 0.533 |
| Surgical approach, n (%) | 0.432 | |||
| Anterior | 32 (35.16) | 11 (35.48) | 21 (35.00) | |
| Posterior | 47 (45.05) | 14 (45.16) | 33 (55.00) | |
| Combined | 12 (13.19) | 6 (19.35) | 6 (10.00) | |
| Fused vertebrae | 4.53 ± 1.39 | 4.52 ± 1.48 | 4.53 ± 1.36 | 0.956 |
| Blood transfusion, n (%) | ||||
| RBC | 30 (32.97) | 15 (48.39) | 15 (25.00) | 0.024* |
| Plasma | 17 (18.68) | 9 (29.03) | 8 (13.33) | 0.069 |
| Complications, n (%) | 40 (43.96) | 23 (74.19) | 17 (28.33) | 0.000* |
| Pneumonia | 14 (15.38) | 9 (29.03) | 5 (8.33) | 0.022* |
| Pneumothorax | 6 (6.59) | 4 (12.90) | 2 (3.33) | 0.194 |
| CSF leakage | 2 (2.20) | 1 (3.00) | 1 (1.67) | 0.554 |
| VTE | 5 (5.49) | 3 (9.68) | 2 (3.33) | 0.439 |
| UTI | 7 (7.69) | 3 (9.68) | 4 (6.67) | 0.924 |
| Wound associated complications | 5 (5.49) | 3 (9.68) | 2 (3.33) | 0.439 |
| Recurrence | 1 (1.10) | 0 (0.00) | 1 (1.67) | 1.000 |
*p < 0.05, the difference between the Low-GRNI group and the High-GRNI group was significant.