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Table 2 Recruitment studies – summary of predictors

From: Identifying the participant characteristics that predict recruitment and retention of participants to randomised controlled trials involving children: a systematic review

  Parent Child Family Neighbourhood
Author Predicting Setting Medical or non- medical intervention Ethnicity Education Parent Age Income SES Parental depression Single parenthood Marital status Employment Child gender Child age Number of family members Number of children N'hood high school drop out Density of n'hood networks
Baker et al., 2011 [23] Recruitment Community Non- medical     X X         
Byrnes et al., 2012 [25] Recruitment Health Non- medical        X     
Constantine et al., 1993 [26] Recruitment Mixed Non- medical               
Cunningham et al., 2000 [28] Recruitment Community Non- medical    X   X    X     
Damashek et al., 2011 [29] Recruitment Community Non- medical X X X X           
Daniels et al., 2012 [30] Recruitment Community Non- medical X            
Eisner M and Meidert U, 2011 [31] Recruitment Community Non- medical     X        
Heinrichs et al., 2005 [35] Recruitment Community Non- medical    X        X    
Ireys et al., 2001 [36] Recruitment Mixed Medical         X      
Mihrshahi et al., 2002 [39] Recruitment Community Medical X X       X       
Multi-centre Otitis Media Study Group, 2001 [38] Recruitment Health Medical X     X      X X   X   
Van den Akkeret al., 2003 [44] Recruitment Health Medical           X X     
Vermaire et al., 2011 [49] Recruitment Health Non- medical      X X   X      
Winslow et al., 2009 [47] Recruitment Mixed Non- medical X X             
Zebracki et al., 2003 [48] Recruitment Health Medical X X X     X X    X    
    Total 12 7 6 5 5 4 5 3 2 6 3 2 1 1 1
    Significant 6 4 3 2 4 2 2 1 0 1 0 0 0 1 1
   Non- significant 6 3 3 3 1 2 3 2 2 5 3 2 1 0 0
  1. Key: x = not significant, ✔ = significant, SES socioeconomic status