Faecal pyruvate kinase isoenzyme type M2 for colorectal cancer screening: A meta-analysis

Table 2 Overview of included studies

Reference	Country of study	Conflict of interest regarding faecal M2-PK
Shastri et al[7], 2006	Germany	None declared
Koss et al[8], 2008	United Kingdom	None declared
Möslein et al[10], 2010	Germany	None declared
Haug et al[30], 2008	Germany	None declared
Shastri et al[31], 2008	Germany	Coauthor Stein: Conference speaker for ScheBo Biotech AG
Haug et al[33], 2007	Germany	None declared
Mulder et al[35], 2007	The Netherlands	None declared
Ewald et al[37], 2007	Germany	None declared
Tonus et al[41], 2006	Germany	Non declared
Vogel et al[44], 2005	Germany	Tests performed by ScheBo Biotech AG
Naumann et al[45], 2004	Germany	None declared
Hardt et al[46], 2004	Germany	None declared
Tonus et al[49], 2009	Germany	None declared
Kloer et al[50], 2005	Germany	None declared
McLoughlin et al[51], 2005	Ireland	None declared
Bellutti et al[52], 2005	Germany	None declared
Schmidt et al[53], 2009	Germany	None declared

Faecal M2-PK: Faecal pyruvate kinase isoenzyme type M2.