Table 4.

Binary logistic regression analysis of the risk factors affecting the degree of GPA resection.

Risk factors	Odds Ratio	95% CI	P-value
Intraoperative confirmed CSI	0.187	0.039, 0.898	0.036*
Knosp grade	0.214	0.05, 0.917	0.038*
Proportion of suprasellar tumor volume	0.937	0.898, 0.978	0.003*
Invasion of the middle cranial fossa	0.197	0.020, 1.913	0.161

CI, confidence interval; CSI, cavernous sinus invasion; GPA, giant pituitary adenomas. Significant P-values are shown in bold.

^*P < 0.05.