Point-of-care testing in the diagnosis of gastrointestinal cancers: Current technology and future directions

Table 2 Described methods of testing for gastrointestinal cancer and accuracy of commercially available tests based on recent evidence (point-of-care)

Technology	Commercial available POC device	POC sensitivity	POC specificity	Level of evidence	Papers retrieved in primary search (n)
Occult blood	Yes	79%[25]	94%[25]	1	10[20,22,34,66-72]
Fecal proteins	Yes	83%[33] (calprotectin)	84%[33] (calprotectin)	2	3[34,73,74]
Volatile organic compounds	No				0
Pyruvate kinase isoenzyme type M2	Yes	80.3%[48]	95.2%[48]	1	1[72]
Tumour markers	No				6[47,49,68,75-77]
DNA mutation analysis	No				4[56,76,78,79]
Multitarget stool DNA test	No				0

POC: Point-of-care.