"Study, year";Country;"Study design";"Study duration";Perspective;"Currency/Price year";"Cost category included";"Mean difference in healthcare costs between a normal pregnancy and GDM-pregnancy"
"Sosa-Rubi et al., 2019[26]";Mexico;Modeling;"From the first trimester until childbirth";"Health care system";"US dollars, 2017";"Direct medical costs";$1576.2
"Meregaglia et al., 2018[30]";Italy;Modeling;"3 months (from the 28th gestational week until childbirth)";"Health care system";"Euro, 2014";"Direct medical costs";€817.8
"Xu et al., 2015[29]";China;Modeling;"3 months (last trimester of pregnancy)";"Health care system";"Chinese Yuan, 2015";"Direct medical costs and health loss";"¥6677.37 ($1929.87)"
"Lenoir-Wijnkoop et al., 2015[27]";USA;Modeling;"From the first trimester until childbirth";"Health care system";"US dollars, 2014";"Direct medical costs";$15593
"Law et al., 2015[28]";USA;"Retrospective comparative cohort study";"During pregnancy and 3 months postpartum";"Health care system";"US dollars, 2011";"Direct medical costs";$4560
"Kolu et al., 2012[31]";Finland;"Based on CRT †";"From the beginning of the pregnancy until hospital discharge";"Societal and patient";"Euro, 2009";"Direct medical costs";€1289
"Moss et al., 2007[32]";Australia;"Based on RCT ‡";"9 months";"Health care system and patient";"AU dollars, 2002";"Direct (medical and non-medical) and indirect costs";"$A650 ($462.02)"