Table 2.
Multivariate Binary Logistic Model Predicting Likelihood of Reoperation Based on Perceived Risk Factors
| Variable | Wald | P Value | Exp(B) | 95% CI for Exp(B) | 
|---|---|---|---|---|
| Age | 0.19 | .65 | 1.16 | 0.59-2.26 | 
| Sex | 0.58 | .44 | 0.36 | 0.02-4.91 | 
| Physeal status (open vs closing or closed) | 0.00 | .99 | 0.99 | 0.07-13.50 | 
| Laterality (unilateral vs bilateral) | 2.20 | .13 | 4.38 | 0.62-30.83 | 
| Obesity (underweight or normal weight vs overweight or obese) | 1.40 | .23 | 0.23 | 0.02-2.59 | 
| Technique (retroarticular vs transarticular drilling) | 0.08 | .77 | 1.50 | 0.09-23.66 | 
| Duration of nonoperative treatment | 0.18 | .66 | 0.96 | 0.82-1.13 | 
| Size | 5.05∗ | .02∗ | 2.93∗ | 1.13-6.56∗ | 
CI, confidence interval.
Significant value.