Table 3.

Studies included in the individual patient data meta-analysis

First author	Year	PMID	Design	Study period	Follow-up duration	Total (N)	Cancer (N)
Van Doormaal	2007	20946181	Concurrently controlled trial	Dec 2002–Dec 2007	Median 2.5 years	630	51
Beckers	2008	18385199	Prospective cohort	Apr 2003–Jan 2006	Mean 27.3 months	25	0
Carrier	2010	20885135	Prospective cohort	May 2006–Dec 2007	Median 24 months	51	2
Jara-Palomares	2010	19447476	Prospective cohort	Feb 2003–Aug 2004	24 months	49	9
Rieu	2011	21309993	Prospective cohort	Jan 2004–May 2005	12 months	32	4
Rondina	2012	21802118	Prospective cohort	Nov 2008–Jan 2010	Mean 449 days	40	1
Alfonso	2013	23616232	Prospective cohort	Jan 2007–Jun 2010	24 months	99	9
Carrier	2015	26095467	Randomised controlled trial	Oct 2008–Apr 2014	12 months	854	33
Robin	2015	26672686	Randomised controlled trial	Mar 2009–Aug 2012	24 months	394	25
Prandoni	2016	26672849	Randomised controlled trial	Sep 2006–May 2008	24 months	205	22