Appendix 2.

Qualification of the articles with the QUADAS tool.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14
Säwe, 197119	yes	yes	yes	yes	yes	yes	yes	yes	yes	?	?	yes	yes	no
Säwe, 197220	yes	yes	yes	yes	yes	yes	yes	yes	yes	?	?	yes	yes	no
Van der Does, 198021	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	no	yes	yes	yes
Short, 198122	yes	yes	yes	no	yes	yes	yes	no	yes	yes	no	yes	yes	yes
Lee, 198523	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	?	yes	no	no
Tierney, 198624	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	no
Hargarten, 198725	yes	yes	yes	yes	yes	yes	yes	yes	no	?	no	yes	no	no
Herlihy, 198726	yes	yes	yes	yes	yes	yes	yes	yes	yes	?	?	yes	no	yes
Solomon, 198927	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	?	yes	no	yes
Berger, 199028	yes	no	yes	yes	yes	yes	yes	yes	yes	yes	?	yes	yes	no
Jonsbu, 199129	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	?	yes	no	no
Gaston-Johansson, 199130	yes	no	yes	yes	yes	yes	yes	yes	yes	?	?	yes	no	no
Hartford, 199331	yes	no	yes	yes	yes	yes	yes	yes	yes	yes	?	yes	no	yes
Grijseels, 199532	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	?	yes	no	yes
Everts, 199633	yes	no	yes	yes	yes	yes	yes	yes	yes	?	?	yes	no	no
Pfister, 199734	yes	yes	yes	yes	yes	yes	yes	no	no	yes	no	yes	no	yes
Lopez-Jimniez, 199835	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	no	no
Pope, 199836	yes	yes	yes	yes	yes	yes	yes	yes	yes	?	?	yes	yes	no
Graf, 200037	yes	yes	no	yes	?	?	yes	yes	no	?	?	yes	no	no
Milner, 200138	yes	yes	yes	yes	yes	yes	yes	yes	yes	?	yes	yes	no	yes
Herlitz, 200239	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	?	yes	no	no
Goodacre, 200240	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	?	yes	no	yes
Baxt, 200241	yes	yes	yes	yes	yes	yes	yes	yes	yes	?	?	yes	yes	no
Albarran, 200242	yes	yes	yes	yes	yes	yes	yes	yes	yes	?	?	yes	no	no
Vodopiutz, 200243	yes	yes	yes	yes	yes	yes	yes	yes	yes	?	?	yes	no	yes
Svensson, 200344	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	no	yes	no	no
Goodacre, 200345	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	?	yes	no	yes
Christenson, 200646	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes