Table 1.

Quality assessment tool for observational cohort and cross sectional studies, NIH (2014).

	Bernstein et al. (2013)	Daviss et al. (1995)	Di Battista,​ Hart, Greco,​ and Gloizer (2009)	Garrison et al. (2005)	Gelfand et al. (2004)	Gonder-Frederick et al. (2006)	Grey,​ Cameron,​ and Thurber (1991)	Grey,​ Cameron,​ Lipman, and Thurber (1995)	Herzer and Hood (2009)	Herzer et al. (2011)	Hilliard,​ Herzer,​ Dolan, and Hood (2011)	Kovacs et al. (1990)	Kovacs et al. (1997)	La Greca,​ Swales, Klemp,​ Madigan, and Skyler (1995)	Naar-King, Idalski,​ et al, 2006; Naar-King,​ Podolski, et al.,​ 2006	Wiebe,​ Alderfer,​ Palmer,​ Lindsay, and Jarrett (1994)	Weist, Finney,​ Barnard, Davis,​ and Ollendick (1993)
Ql	G	F	G	F	G	G	G	G	G	F	G	G	F	F	F	F	F
Q2	F	G	G	G	P	G	G	G	G	F	F	G	G	G	G	G	P
Q3	U	F	U	NA	NA	U	U	U	G	G	G	G	G	P	G	G	P
Q4	F	F	P	G	P	G	G	G	G	F	F	G	G	G	G	G	P
Q5	G	P	P	P	P	P	P	P	F	F	P	P	P	G	G	P	P
Q6	NA	NA	NA	NA	F	NA	NA	G	NA	NA	NA	G	G	NA	NA	G	F
Q7	G	G	G	G	G	G	G	G	G	G	G	G	G	G	G	G	F
Q8	F	F	G	F	P	G	G	F	NA	G	G	G	G	F	G	G	F
Q9	G	G	G	P	P	G	G	G	G	G	G	G	F	F	G	F	G
Q10	NA	P	NA	F	NA	NA	NA	G	NA	G	NA	G	G	NA	NA	NA	NA
Q11	G	G	G	G	F	G	G	G	G	G	G	G	F	G	G	P	G
Ql2	U	NA	NA	NA	NA	NA	NA	U	U	U	U	U	U	U	U	U	U
Ql3	G	G	G	NA	NA	P	G	G	G	G	G	P	G	P	P	G	U
Ql4	G	G	G	F	P	G	G	G	G	G	G	F	G	G	G	G	F

Key: G = good; F = fair; P = poor; U = unknown; NA = not applicable.