Table 4.

Logistic regression analysis of log CA-125 and independent clinical factors in predicting lymph node metastasis.

Variable	β	Standard error	P	Odds ratio	95% confidence interval
Age (quantitative)	0,028	0,016	0.073	0,972	0,943 to 1,003
Histology serous or nonserous	0,149	0,191	0.435	1,161	0,798 to 1,689
Preoperative log CA-125	0,345	0,129	0.008	1,412	1,096 to 1,818
Lymph node metastasis in imaging studies	1,206	0,415	0.004	3,338	1,481 to 7,525

Model χ ² = 23,49; P < 0.001; overall classification 77,3%.