Staging laparoscopy improves treatment decision-making for advanced gastric cancer

Table 2 Agreement of computed tomographic and laparoscopic staging of T stage (n = 582)

		Computed tomography					Staging laparoscopy
		T2/3	T4a	T4b			T2/3	T4a	T4b
Final stage
T2/3		115	35	3			126	27	0
T4a		82	176	4			49	212	1
T4b		22	136	9			0	0	167
	Acc.	Sens.	Spec.	PPV	NPV	Acc.	Sens.	Spec.	PPV	NPV
T2/3	76%	75%	76%	53%	90%	87%	82%	89%	72%	93%
T4a	56%	67%	47%	51%	63%	87%	81%	92%	89%	85%
T4b	72%	5%	98%	56%	72%	100%	100%	100%	99%	100%

Overall accuracy: 51.5% (computed tomography), and 86.8% (staging laparoscopy). Acc.: Accuracy; Sens.: Sensitivity; Spec.: Specificity; PPV: Positive predictive value; NPV: Negative predictive value.