Impact of using fasting plasma glucose and <scp> HbA _1c </scp> instead of <scp>OGTT</scp> as a screening tool for gestational diabetes: a retrospective study

Aims: To examine the impact of using Royal College Obstetricians and Gynaecologists (RCOG) COVID-19 Gestational Diabetes (GDM) criteria on identifying women with GDM. Methods: Data were collected between November 2018 June 2019, from previously diagnosed GDM NICE guidelines, who also had HbA1c data available. These used to determine whether they would have been RCOG applied. compare birth fetal outcomes, medical management. Results: Eighty-nine included; 43 (48%) met both diagnostic (RCOG + group), while 46 (52%) only missed (NICE group). There no significant differences in outcomes groups terms neonatal delivery complications. More group required treatment insulin (11 [25.6%] vs 1 [2.2%], p=0.0010) or metformin (23 [53.5%] 14 [30.4%], p=0.03). Conclusions: Applying resulted approximately half be missed, one-third whom severe resistance requiring insulin. The retrospective design this study may not represent these if their diagnosis missed. Women should informed about risk when offered an oral glucose tolerance test guide decision making. Copyright © 2023 John Wiley & Sons.