Rectal Tumour Staging with Endorectal Ultrasound: Is There Any Difference between Western and Eastern European Countries?

Table 4

Accuracy of N-staging in each patient group.

	Group I ( = 29)	Group II ( = 29)	Group III ( = 65)
Sensitivity	14%	11%	50%
Specificity	77%	80%	42%
PPV	17%	20%	28%
NPV	74%	67%	66%