Different types of fruit intake and colorectal cancer risk: A meta-analysis of observational studies

Table 3 Risk of bias of 24 included studies, based on the Risk of Bias In Non-randomized Studies of Interventions-I tool

Ref.	Confounding	Selection of participants	Classification of interventions	Deviations from intended interventions	Bias due to missing data	Measurement of outcomes	Selection of reported result	Overall rating
Lee et al[39], 2017	Moderate	Low	Low	Low	Moderate	Low	Low	Moderate
Abu Mweis et al[41], 2015	Moderate	Low	Moderate	Low	Moderate	Low	Low	Moderate
Leenders et al[40], 2015	Moderate	Moderate	Low	Low	Moderate	Low	Low	Moderate
Tayyem et al[42], 2014	Moderate	Low	Low	Low	Low	Low	Low	Moderate
Rosato et al[43], 2013	Moderate	Low	Low	Low	Moderate	Low	Low	Moderate
Vogtmann et al[50], 2013	Low	Low	Low	Low	Moderate	Low	Low	Moderate
Annema et al[44], 2011	Moderate	Low	Low	Low	Moderate	Low	Low	Moderate
Foschi et al[45], 2010	Moderate	Moderate	Low	Low	Moderate	Low	Low	Moderate
Jedrychowski et al[32], 2010	Moderate	Low	Moderate	Low	Moderate	Low	Low	Moderate
Williams et al[46], 2009	Moderate	Low	Low	Low	Moderate	Low	Low	Moderate
Li et al[51], 2010	Moderate	Low	Low	Low	Moderate	Low	Low	Moderate
Gallus et al[47], 2005	Moderate	Low	Moderate	Low	Moderate	Low	Low	Moderate
Lin et al[36], 2006	Low	Moderate	Low	Low	Moderate	Low	Low	Moderate
Satia-Abouta et al[48], 2004	Moderate	Low	Low	Low	Moderate	Low	Low	Moderate
Voorrips et al[53], 2000	Moderate	Moderate	Low	Low	Moderate	Low	Low	Moderate
Franceschi et al[29], 1998	Moderate	Low	Moderate	Low	Moderate	Low	Low	Moderate
Levi et al[49], 1999	Moderate	Low	Low	Low	Moderate	Low	Low	Moderate
Le Marchand et al[56], 1997	Moderate	Low	Moderate	Low	Moderate	Low	Low	Moderate
Deneo-Pellegrini et al[57], 1996	Moderate	Low	Low	Low	Moderate	Low	Low	Moderate
Theodoratou et al[37], 2007	Moderate	Low	Low	Low	Moderate	Low	Low	Moderate
Deneo-Pellegrini et al[38], 2002	Moderate	Low	Low	Low	Moderate	Low	Low	Moderate
Nomura et al[52], 2008	Moderate	Low	Low	Low	Moderate	Low	Low	Moderate
Lin et al[55], 2005	Moderate	Low	Low	Low	Moderate	Low	Low	Moderate
Michels et al[54], 2000	Moderate	Moderate	Low	Low	Moderate	Low	Low	Moderate