. 2016 May 25;6:26703. doi: 10.1038/srep26703

Table 2. Serum NDKA levels in the screening cohort according to the colorectal findings.

Colorectal findings	N	Median (pg/mL)	IQR (pg/mL)	P
No neoplasia	334	56.90	46.88–66.94
No colorectal findings	173	57.37	46.88–69.11
Benign pathologies	161	56.19	46.86–65.44	0.542^b
Inflammatory Polyps	5	55.24	49.00–71.27	0.944^b
Hyperplasic Polyps	39	55.05	42.21–65.00	0.218^b
Haemorrhoids	67	55.43	47.14–64.51	0.338^b
Diverticula	44	60.70	47.26–71.76	0.472^b
Other	6	60.39	46.48–83.07	0.548^b
Non-advanced adenomas	120	58.34	45.12–71.06	0.499^a
Advanced neoplasia	57	66.93	47.54–82.49	0.006^a
Advanced adenomas	53	66.93	47.54–82.49	0.010^a
Cancer	4	66.98	49.18–91.81	0.262^a

IQR: interquartile range; p values correspond to Mann-Whitney U test for comparisons with the no neoplasia group (a) or the no colorectal findings group (b).