Table 3.

PRISMA for Abstracts item-by-item ratings

Reference	Item 1	Item 2	Item 3a	Item 3b	Item 4a	Item 4b	Item 5	Item 6	Item 7	Item 8	Item 9	Item 10	Item 11	Item 12	Total yes
Pocklington, 201634	Yes	No	No	No	No	No	Yes	No	Yes	No	Yes	Yes	No	No	5 (36%)
Bosanquet, 201531	Yes	No	No	No	No	No	No	No	Yes	No	Yes	Yes	No	Yes	5 (36%)
Moriarty, 201533	Yes	No	Yes	No	Yes	No	No	Yes	Yes	No	Yes	Yes	No	No	7 (50%)
Stockings, 201535	Yes	No	No	No	Yes	No	No	No	Yes	No	Yes	Yes	No	No	5 (36%)
Manea, 201532	Yes	No	No	No	No	No	No	No	No	No	No	Yes	No	No	2 (14%)
Meader, 201429	Yes	No	No	No	No	Yes	No	No	Yes	No	No	Yes	No	No	4 (29%)
Tsai, 201425	Yes	No	No	No	No	No	No	No	No	No	No	Yes	No	No	2 (14%)
Tsai, 201326	Yes	No	No	No	No	No	No	No	Yes	No	No	Yes	No	No	3 (21%)
Mitchell, 201230	Yes	No	No	No	No	No	No	No	No	Yes	Yes	Yes	No	No	4 (29%)
Manea, 201218	Yes	No	No	No	Yes	Yes	No	Yes	Yes	No	No	Yes	No	No	6 (43%)
Meader, 201117	Yes	No	No	No	Yes	Yes	No	No	No	No	Yes	Yes	No	No	5 (36%)
Vodermaier, 201127	Yes	No	No	No	Yes	No	No	No	Yes	No	No	No	No	No	3 (21%)
Brennan, 201016	Yes	No	No	No	Yes	Yes	No	No	Yes	No	No	Yes	No	No	5 (36%)
Mitchell, 2010a22	Yes	No	No	No	No	No	No	No	Yes	No	No	Yes	No	No	3 (21%)
Mitchell, 2010b24	Yes	No	No	No	No	No	No	No	No	No	No	Yes	No	No	2 (14%)
Mitchell, 2010c21	Yes	No	No	No	No	No	No	No	Yes	No	No	Yes	No	No	3 (21%)
Hewitt, 200928	No	No	No	No	Yes	No	Yes	No	Yes	No	No	Yes	No	No	4 (29%)
Mitchell, 200820	Yes	No	No	No	No	Yes	No	No	Yes	No	No	Yes	No	No	4 (29%)
Gilbody, 200715	Yes	No	No	No	Yes	Yes	No	No	Yes	Yes	Yes	Yes	No	No	7 (50%)
Mitchell, 200723	Yes	No	No	No	No	No	No	No	Yes	Yes	No	Yes	No	No	4 (29%)
Wittkampf, 200719	Yes	No	No	No	Yes	Yes	Yes	No	Yes	No	No	Yes	No	No	6 (43%)
Total yes	20 (95%)	0 (0%)	1 (5%)	0 (0%)	9 (43%)	7 (33%)	3 (14%)	2 (10%)	16 (76%)	3 (14%)	7 (33%)	20 (95%)	0 (0%)	1 (5%)

Item 1, title; Item 2, objectives; Item 3a, eligibility criteria study characteristics; Item 3b, eligibility criteria report characteristics; Item 4a, databases searched; Item 4b, search dates; Item 5, risk of bias; Item 6, included studies; Item 7, synthesis of results; Item 8, description of outcomes; Item 9, strengths and limitations of evidence; Item 10, interpretation; Item 11, funding; Item 12, registration.

PRISMA, Preferred Reporting Items for Systematic Reviews and Meta-Analyses.