Table 4: Multivariate regression analysis summary.

Variables Included 95% CI for Odds Ratio
B (SE) Lower Odds ratio Upper
Constant -0.879 (0.634)
OKT-A (categorical) 1.219 (0.342) b 1.730 3.384 6.619
OHBS-A (categorical) 0.916 (0.342) b 1.279 2.499 4.882
Age (continuous) -0.032 (0.014)a 0.942 0.969 0.997
Gender -0.833 (0.342) a 0.222 0.435 0.850

Note: R2 = 0.442 (Hosmer & Lemeshow), 0.118 (Cox & Snell), 0.198 (Nagelkerke). Model X2(4) = 37.52, P< 0.001. aP<0.05, **P<0.01.