Table 1.

Quality of included studies.

Study	NHMRC Evidence Hierarchy		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	Total
Safarinejad 2011 [20]	Level II	Randomised controlled trial	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	16/16 (100%)
Safarinejad 2010 [21]	Level II	Randomised controlled trial	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	16/16 (100%)
Segraves 2004 [17]	Level II	Randomised controlled trial	Yes	Yes	Yes	Yes	Yes	Na	Yes	Yes	Na	Na	Na	Yes	Na	Yes	Yes	Yes	11/11 (100%)
Thase 2006 [22]	Level II	Randomised controlled trial	Yes	Yes	Yes	Yes	Yes	Na	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	15/15 (100%)
Clayton 2004 [23]	Level II	Randomised controlled trial	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes	15/16 (94%)
Kennedy 2006 [24]	Level II	Randomised controlled trial	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	15/16 (94%)
Hartmann 2012 [25]	Level III-3	Interrupted time series without a parallel control group	Yes	Yes	Yes	Yes	NA	NA	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	14/14 (100%)
DeFronzoDobkin 2006 [26]	Level III-3	Interrupted time series without a parallel control group	Yes	Yes	Yes	Yes	No	NA	Yes	Yes	Yes	NA	Yes	Yes	Yes	Yes	Yes	Yes	13/14 (93%)
Segraves 2001 [27]	Level III-3	Interrupted time series without a parallel control group	Yes	Yes	Yes	Yes	No	NA	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Na	Yes	13/15 (87%)
Mathias 2006 [28]	Level III-3	Interrupted time series without a parallel control group	Yes	Yes	Yes	No	NA	NA	Yes	Yes	No	No	No	Yes	Yes	Yes	No	Yes	9/14 (64%)
Gitlin 2002 [29]	Level IV	Case series with either post-test or pre-test/post-test outcomes	Yes	Yes	Yes	Yes	No	NA	Yes	Yes	Yes	NA	No	Yes	Yes	Yes	No	Yes	11/14 (79%)