Staging laparoscopy improves treatment decision-making for advanced gastric cancer

Table 3 Agreement of endoscopic and laparoscopic staging of T stage (n = 150)

		Endoscopic ultrasound					Staging laparoscopy
		T2/3	T4a	T4b			T2/3	T4a	T4b
Final stage
T2/3		28	42	3			64	9	0
T4a		4	29	18			8	42	1
T4b		0	11	15			0	0	26
	Acc.	Sens.	Spec.	PPV	NPV	Acc.	Sens.	Spec.	PPV	NPV
T2/3	67%	38%	95%	88%	62%	89%	88%	90%	89%	88%
T4a	50%	57%	46%	35%	68%	88%	82%	91%	82%	91%
T4b	79%	58%	83%	42%	90%	99%	100%	99%	96%	100%

Overall accuracy: 48.0% (endoscopic ultrasound), and 86.7% (staging laparoscopy). Acc.: Accuracy; Sens.: Sensitivity; Spec.: Specificity; PPV: Positive predictive value; NPV: Negative predictive value.