Table 3.

EPHPP Quality Assessments for Quantitative Studies

	Study	Aggarwal et al. (2019)		Bachhuber et al. (2018)		Barocas et al. (2019)		Chavis et al. (2020)
Domain	Study team member	M.D.	A.G.	M.D.	A.G.	M.D.	A.G.	M.D.	A.G.
Selection bias	Participants representative of target population	Somewhat likely	Somewhat likely	Somewhat likely	Somewhat likely	Very likely	Very likely	Very likely	Very likely
	Percent of selected individuals who agreed to participate	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
	Section rating	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Strong	Strong
Study design	Indicate the study design	Cohort analytic	Cohort analytic	Retrospective chart review	Retrospective chart review	Cohort analytic	Cohort analytic	Retrospective RSR data review	Retrospective RSR data review
	Study described as randomized	No	No	No	No	No	No	No	No
	Was randomized method described	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
	Was randomized method appropriate	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
	Section rating	Moderate	Moderate	Weak	Weak	Moderate	Moderate	Weak	Weak
Confounders	Important differences between groups pre-intervention	Yes	Yes	Can’t tell	Can’t tell	Yes	Yes	Yes	Yes
	Indicate % of confounders controlled	Most	Most	Can’t tell	Can’t tell	<60%	<60%	Most	Most
	Section rating	Strong	Strong	Weak	Weak	Weak	Weak	Strong	Strong
Blinding	Outcome assessors aware of intervention or exposure status of participants	Yes	Yes	Can’t tell	Can’t tell	Yes	Yes	Yes	Yes
	Participants aware of research question	Can’t tell	Can’t tell	Can’t tell	Can’t tell	Can’t tell	Can’t tell	Can’t tell	Can’t tell
	Section rating	Weak	Weak	Moderate	Moderate	Weak	Weak	Weak	Weak
Data collection	Data collection methods valid	Yes	Yes	Yes	Yes	Yes	Yes	Can’t tell	Can’t tell
	Data collection tools reliable	Yes	Yes	Can’t tell	Can’t tell	Yes	Yes	Can’t tell	Can’t tell
	Section rating	Strong	Strong	Moderate	Moderate	Strong	Strong	Weak	Weak
Withdrawals and dropouts	Withdrawals and dropouts reported in #s/reasons per groups	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
	% of participants completing the study	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
	Section rating	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Final score	Discrepancy between reviewers (Y/N)	N	N	N	N	N	N	N	N
	Reason for discrepancy	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
	Final global rating	Moderate	Moderate	Weak	Weak	Weak	Weak	Weak	Weak