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Table 1 Sensitivity analysis: criteria and assessment of the quality of included studies based on Study Quality Guide 2011 by Cochrane Consumers and Communication Review Group

From: Do interventions to promote walking in groups increase physical activity? A meta-analysis

Criteria Randomization Allocation Blinding Baseline comparability Follow up Valid measures Ethical approval Informed consent Score
Studies
[36] Kriska 1986 Yes Yes Ncl Yes Yes Yes Yes Yes 7
[37] McAuley 1994 Yes Ncl Ncl Ncl Yes No Yes Yes 4
[38] Rogers 1997 No No No No No Yes Yes Yes 3
[39] Sullivan 1998 Yes Ncl No No No Yes Yes Yes 4
[40] Resnick 2002 Yes Ncl Ncl Yes Yes Yes Yes Yes 6
[41] Coull 2004 Yes Yes Yes Yes Yes No Yes Yes 7
[13] Fisher 2004 Yes Yes No Yes Yes No Yes Yes 6
[42] Nguyen 2002 No No No No Yes No Ncl Ncl 1
[43] Staten 2005 No No No No Yes No Ncl Yes 2
[44] Banks-Wallace 2007 No No No No No Yes Yes Yes 3
[45] Hogue 2007 No No No No Yes No Yes Yes 3
[46] Estabrooks 2008 Ncl No No No No No Ncl Ncl 0
[47] Jancey 2008 Ncl No No Yes No Yes Yes Yes 4
[48] Krieger 2009 No No No No Yes Ncl Ncl Ncl 1
[49] Zoellner 2010 No No No No Yes Yes Yes Yes 4
[50] Takeda 2011 No No No Yes Yes Yes Yes Yes 5
[51] Lee 2012 Yes Yes Yes Yes No Yes Yes Yes 7
[52] Maki 2012 Ncl Yes Yes No Yes Yes Yes Yes 6
[53] Thomas 2012 Yes Yes Yes Yes Yes Yes Yes Yes 8
  1. Yes = satisfied quality criterion, No = do not satisfy quality criteria, Ncl = information provided not clear.