Table 1.

Assessment of methodological quality of included intervention studies according to EPOC risk of bias criteria

Study	Allocation sequence	Concealment of allocation	Baseline outcome measurements	Baseline characteristics	Incomplete outcome data	Knowledge of allocated interventions	Protection against contamination	Selective outcome reporting	Other risk of bias
Aimonino Ricauda et al34	L	L	L	L	L	L	L	H	L
Ojoo et al32	H	L	L	L	L	U	H	L	L
Abad-Corpa et al33	H	L	L	H	L	U	L	L	L
Egan et al31	L	U	U	L	L	U	H	L	L
Lainscak et al36	L	L	U	U	L	L	H	L	H
Boxall et al30	L	L	L	L	L	H	H	L	L
Jonsdottir et al37	L	L	L	L	L	U	H	L	L
Marques et al38	L	L	H	L	L	U	H	L	L
Monninkhof et al35	H	L	L	L	L	U	H	L	L

Notes: L, low risk of bias; H, high risk of bias; U, unclear risk of bias.

Abbreviation: EPOC, Effective Practice and Organisation of Care.