Table S3.

Results of judging methodologic quality

First author	Overall quality	Domain free of bias?
		Study participation	Study attrition	Prognostic factor measurement	Outcome measurement	Confounding measurement and account	Analysis
Bottonari13	Low	No	No	Partly	Partly	No	No
De Geest24	Low	No	Yes	Partly	Yes	No	Partly
Delgado10	Low	Partly	Yes	Partly	Partly	Partly	Partly
Deschamps8	Low	No	Partly	No	Yes	No	No
Dew27	Low	No	Yes	Yes	Partly	Partly	Partly
Dew28	Low	Yes	Partly	Partly	Partly	Partly	Partly
DiMatteo30	Low	Partly	No	Partly	No	No	No
Dobbels29	Low	Yes	Partly	Partly	Partly	Partly	No
Gazmararian3	Low	Yes	Partly	Partly	Yes	Partly	Yes
Godin14	Low	Partly	Yes	No	Partly	Partly	Partly
Grégoire5	Low	Partly	No	No	Partly	No	Partly
Holmes9	Low	Partly	Yes	Partly	Partly	Partly	Yes
Kacanek15	Low	No	Yes	Partly	Partly	No	Yes
Martini16	Low	Partly	No	No	Partly	No	No
Mellins17	Low	Partly	Partly	Partly	No	No	No
Miller6	Low	No	Partly	Partly	No	Partly	Partly
Nabi4	Low	Partly	Partly	Partly	Partly	Partly	Yes
Nilsson Schönnesson18	Low	Partly	Yes	Partly	No	Partly	No
Ponieman1	Low	No	No	Partly	Partly	Partly	Partly
Russell25	Low	No	No	Partly	Partly	No	Partly
Singh11	Low	No	Yes	Partly	Partly	Partly	No
Singh12	Low	Partly	Yes	Partly	Partly	No	No
Stilley23	Low	Yes	Partly	Partly	No	No	No
Thrasher19	Low	Yes	Partly	Partly	Partly	Partly	Partly
Venturini2	Low	Yes	Partly	Partly	Yes	Partly	Partly
Weng26	Low	Partly	No	Yes	Partly	Partly	Yes
Molloy7	Low	No	Yes	Partly	No	Partly	Partly
Horne20	Low	Yes	Yes	Partly	Partly	No	Yes
Mugavero21	Low	Yes	No	Yes	Partly	Partly	Yes
Carrieri22	Low	No	Yes	No	Partly	Partly	Yes