Table 4.

Diagnostic Performance of variables for predicting EPE.

parameters	Cut off value	AUC	95% CI	Sensitivity	Specificity	P values
APT	3.650	0.752	0.649-0.855	76%	89.4%	<0.001
ADC	0.97	0.665	0.557-0.773	80%	59.6%	0.005
Tumor size	17.30	0.700	0.597-0.803	54%	78.9%	0.001
LCC	10.78	0.756	0.661-0.851	72%	66%	<0.001
Combined Model I	/	0.803	0.718-0.888	74%	72.3%	<0.001
Combined Model II	/	0.845	0.766-0.924	82%	75.5%	<0.001
Combined Model III	/	0.869	0.793-0.940	84%	80.9%	<0.001

APT, amide proton transfer; ADC, apparent diffusion coefficient; LCC, length of capsular contact; EPE, Extraprostatic extension; Combined Model I, LCC + tumor size + ADC; Combined Model II, LCC + tumor size + APT; Combined Model III, LCC + tumor size + ADC + APT.

Bold font represents statistical significance.