Table 2.
Results of univariate and multivariate analysis about perioperative risk factors related to complications of lumbar spine fusion surgery
| Parameters | Group A(24 patients) | Group B(178 patients) | Univariate | Multivariate |
|---|---|---|---|---|
| Age(years) | 80.88 ± 3.18 | 78.87 ± 2.23 |
P < 0.001* t = 3.92 |
P = 0.001† OR = 1.323 95%CI (1.126–1.554) |
| Comorbidity | 19/24 (79.2%) | 132/178 (74.2%) |
P = 0.596 χ2 = 0.281 |
P = 0.441 OR = 1.557 95%CI (0.505–4.803) |
| Sex(male) | 13/24 (54.2%) | 86/178 (48.3%) |
P = 0.290 X2 = 0.281 |
P = 0.679 OR = 1.227 95%CI (0.466–3.234) |
| Fixation segments | ||||
| 1 | 4 | 33 |
P = 0.848 Z=-0.192 |
P = 0.171 OR = 1.466 95%CI (0.848–2.535) |
| 2 | 13 | 88 | ||
| 3 | 4 | 33 | ||
| 4 | 1 | 17 | ||
| 5 | 2 | 5 | ||
| 6 | 0 | 1 | ||
| 7 | 0 | 1 | ||
| Operation time(min) | 147.9 ± 33.7 | 154.0 ± 43.1 |
P = 0.785 Z=-0.272 |
P = 0.474 OR = 0.994 95%CI (0.978–1.010) |
|
Surgical blood loss(mL) |
349.2 ± 186.0 | 367.2 ± 232.2 |
P = 0.971 Z=-0.036 |
P = 0.809 OR = 1.000 95%CI (0.997–1.002) |
* Student’s t-test † multivariate logistic regression analysis