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Table 2 Assessment of methodological quality of included studies

From: 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

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