Gestational diabetes and pregnancy outcomes - a systematic review of the World Health Organization (WHO) and the International Association of Diabetes in Pregnancy Study Groups (IADPSG) diagnostic criteria

Table 2 Assessment of methodological quality of included studies

Study	Adequate selection of participants	Adequate test standardization	Adequate report of losses to follow-up	Medical staff blinded to OGTT results
Aberg, 2001 [1]	Uncertain	No	Uncertain	No
Black, 2010 [13]	Yes	Uncertain	Yes	No
EBDG, 2001 [16]	Yes	Yes	Yes	No
Forsbach, 1997 [14]	Yes	Yes	Uncertain	No
HAPO, 2008, 2010 [7, 19]	Yes	Yes	Yes	Yes
Khan, 1994 [15]	Yes	Uncertain	Uncertain	Uncertain
Shirazian, 2008 [17]	Yes	Yes	No	Uncertain
Sugaya, 2000 [18]	Uncertain	Uncertain	Yes	No

ISSN: 1471-2393