¹⁸F-Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography Accuracy in the Staging of Non-Small Cell Lung Cancer: Review and Cost-Effectiveness

Table 3

Concordance between the three diagnostic techniques and histology.

		CT	PET	PET/CT	HP; gold standard	Total; biopsies
Size	T0	1	5	6	12	103
	T1	21	15	16	12
	T2	39	37	41	39
	T3	29	32	26	26
	T4	13	14	14	14
Kappa		0.726	0.596	0.882
Stratified kappa		0.051	0.061	0.037
Nodes	N0	59	39	43	24	40
	N1	8	19	16	4
	N2	23	28	24	10
	N3	13	17	20	2
	N				63
Kappa ()		0.332	0.566	0.756		40
Stratified kappa		0.121	0.105	0.092
Metastases	M0	81	78	78	80	25
	M1	22	25	25	23
Kappa		0.8915	0.783	0.910
Stratified kappa		0.048	0073	0.053

HP: histopathology.