Endocytoscopy in real-time assessment of histological and endoscopic activity in ulcerative colitis

Table 4 Correlation between endocytoscopy scores and endoscopic/histological score

Correlation	Spearman’s rho	P value	Kappa1	P value
MES vs ECSS	0.78	< 0.001	0.60	< 0.001
MES vs ELECT score	0.81	< 0.001	0.88	< 0.001
ECSS vs NHI	0.69	< 0.001	0.47	< 0.001
ELECT vs NHI	0.74	< 0.001	0.88	< 0.001
ECSS vs NHI
Cecum	1.0	< 0.001	1	0.02
Ascending colon	0.59	0.07	0.41	0.05
Transverse colon	0.30	0.38	0.21	0.24
Descending colon	0.53	0.10	0.21	0.12
Sigmoid	0.87	< 0.001	0.61	0.01
Rectum	0.90	< 0.001	0.21	0.25
ELECT vs NHI
Cecum	0.82	< 0.001	1	0.02
Ascending colon	0.60	0.07	1	< 0.001
Transverse colon	0.42	0.20	0.56	0.02
Descending colon	0.59	0.06	1	< 0.001
Sigmoid	0.91	< 0.001	1	< 0.001
Rectum	0.88	< 0.001	0.78	0.005

¹Kappa correlation was analyzed based on Mayo endoscopic score = 0 or endocytoscopic [(endocytoscopy score < 1) or (ErLangen Endocytoscopy in ColiTis score < 2)] remission vs histological remission (Nancy histological index = 0).

MES: Mayo endoscopic score; ECSS: Endocytoscopy score; ELECT: ErLangen Endocytoscopy in ColiTis score; NHI: Nancy histological index.