Table 4.

Multivariate regression model of predicting postoperative complications after surgery for degenerative lumbar scoliosis

Predictors	Odds ratio	95% confidence Interval		P values
		Lower limit	Upper limit
Operation time	2.45	1.11	4.78	0.001
ASA class (more than 2)	2.21	1.22	3.45	0.003
Insulin	1.72	1.18	2.43	0.023
Steroid use for chronic condition	1.55	1.06	2.32	0.031

Nagelkerke R² = 0.668.