Table 3.

Risk of bias table

RCT (Cochrane risk of bias tool)	Random sequence generation	Allocation concealment	Blinding of participants and personnel	Blinding of outcome assessment	Incomplete outcome data	Selective reporting	Other bias	Overall bias
Emery et al. 2007	+	–	–	+	–	+	?	–
Family Healthware Trial	?	?	–	–	–	?	–	–
NRSI (ROBINS-I risk of bias tool)	Confounding	Participants selection	Classification of intervention	Deviation from intended interventions	Missing data	Measurement of outcomes	Selection of reported result	Overall bias
Van Erkelens et al. 2017	Critical	Serious	Moderate	Low	Serious	Moderate	Moderate	Critical

+, low risk; ?, unclear risk; −, high risk