Table 1 Clinical Factors and Univariate Analysis of Increased Spinal Cord Area
TOTAL | SAI | MAI | LAI | P Value | |
|---|---|---|---|---|---|
Gender, N (%) | 0.546 | ||||
Male | 65 | 27 (41.5) | 21 (32.3) | 17 (26.2) | |
Female | 18 | 7 (38.9) | 8 (44.4) | 3 (16.7) | |
Age, year | 55.5 ± 11.6 | 57.8 ± 10.7 | 53.4 ± 12.2 | 59.9 ± 11.5 | 0.302 |
Smoking, N (%) | 34 | 16 (47.0) | 9 (26.5) | 9 (26.5) | 0.339 |
Drinking, N (%) | 30 | 14 (46.7) | 6 (20.0) | 10 (33.3) | 0.081 |
Diabetes, N (%) | 21 | 10 (47.6) | 6 (28.6) | 5 (23.8) | 0.729 |
Hypertension, N (%) | 24 | 9 (37.5) | 9 (37.5) | 6 (25.0) | 0.917 |
Diagnosis, N (%) | 0.001 | ||||
OPLL | 19 | 6 (31.6) | 8 (42.1) | 5 (26.3) | |
MCDH | 30 | 13 (43.3) | 11 (36.7) | 6 (20.0) | |
DCSS | 34 | 15 (44.1) | 10 (29.4) | 9 (26.5) | |
Operative level, N (%) | 0.885 | ||||
C2-C7 | 2 | 0 (0) | 1 (50.0) | 1 (50.0) | |
C3-C6 | 8 | 3 (37.5) | 3 (37.5) | 2 (25.0) | |
C3-C7 | 69 | 30 (43.5) | 23 (33.3) | 16 (27.5) | |
C4-C7 | 4 | 1 (25.0) | 2 (50.0) | 1 (25.0) | |
Blood loss, ml | 236 ± 177 | 237 ± 147 | 190 ± 145 | 300 ± 244 | 0.098 |
Operative time, min | 147 ± 38 | 140 ± 37 | 156 ± 44 | 145 ± 30 | 0.248 |
Duration of follow-up, month | 17.2 ± 15.7 | 16.5 ± 19.4 | 18.1 ± 14.1 | 17.1 ± 11.1 | 0.923 |
Duration of postoperative hospital stay, day | 9.1 ± 3.3 | 9.2 ± 3.7 | 9.1 ± 3.7 | 9.0 ± 2.3 | 0.982 |
Preoperative duration of symptoms, month | 45.8 ± 71.6 | 43.0 ± 76.2 | 43.7 ± 56.3 | 53.6 ± 85.4 | 0.858 |
postoperative drainage volume, ml | 270.0 ± 130.3 | 262.0 ± 158.1 | 290.0 ± 127.2 | 253.6 ± 93.6 | 0.437 |