Table 1.
The Distribution of Each Variable That Meets the Screening Condition
| Name | Levels | Normal | SSI | P |
|---|---|---|---|---|
| (N=1273) | (N=54) | |||
| Gender | Female | 685 (53.8%) | 38 (70.4%) | 0.024 |
| Male | 588 (46.2%) | 16 (29.6%) | ||
| Age | Mean ±SD | 56.4 ±11.1 | 65.6 ±6.6 | <0.001 |
| Diabetes | No | 1155 (90.7%) | 28 (51.9%) | <0.001 |
| Yes | 118 (9.3%) | 26 (48.1%) | ||
| Modic | I | 1086 (85.3%) | 0 (0%) | <0.001 |
| II | 135 (10.6%) | 18 (33.3%) | ||
| III | 52 (4.1%) | 36 (66.7%) | ||
| ASA | 1 | 65 (5.1%) | 5 (9.3%) | 0.225 |
| 2 | 1010 (79.3%) | 38 (70.4%) | ||
| 3 | 198 (15.6%) | 11 (20.4%) | ||
| Antibiotics | Mean ±SD | 0.3 ±0.5 | 0.4 ±0.5 | 0.012 |
| OP times | Mean ±SD | 95.8 ±48.7 | 99.8 ±62.4 | 0.641 |
| Number of vertebral bodies spanned | Mean ±SD | 1.9 ±0.9 | 2.4 ±2.2 | 0.066 |
| Number of screws | Mean ±SD | 5.1 ±1.6 | 6.3 ±3.3 | 0.012 |
| AT | Mean ±SD | 114.5 ±54.0 | 94.4 ±66.2 | 0.032 |
| Glucose | Mean ±SD | 5.6 ±2.0 | 8.3 ±3.0 | <0.001 |
| WBC | Mean ±SD | 8.4 ±3.4 | 9.7 ±3.8 | 0.011 |
| Hb | Mean ±SD | 126.5 ±19.8 | 106.7 ±19.7 | <0.001 |
| PLT | Mean ±SD | 257.7 ±98.4 | 252.4 ±112.3 | 0.699 |
| Albumin | Mean ±SD | 40.1 ±5.0 | 36.5 ±6.4 | <0.001 |
| ESR | Mean ±SD | 18.2 ±17.7 | 32.0 ±26.2 | <0.001 |
| Blood transfusion | No | 1166 (91.6%) | 19 (35.2%) | <0.001 |
| Yes | 107 (8.4%) | 35 (64.8%) | ||
| Sebum thickness | Mean ±SD | 7.8 ±4.0 | 12.2 ±8.2 | <0.001 |
| Skin to lamina thickness | Mean ±SD | 47.4 ±9.7 | 48.7 ±12.0 | 0.426 |
Abbreviations: ASA, American Society of Anesthesiologists; OP-time, Operation time; AT, anesthesia time; WBC, white blood cell; Hb, hemoglobin; PLT, platelet; ESR, erythrocyte sedimentation rate.