Factors associated with the complication of GDM. Note: Several influencing factors were studied under the subdomains of maternal outcomes (a), neonatal outcomes (b), postpartum diabetes (c), and other complications (d). Dec: decreased risk/incidence of complications, Inc.: increased risk/incidence of complications, and Equ: equivocal/no association. HbA1c: glycated hemoglobin, PIH: pregnancy-induced hypertension, UTI: urinary tract infection, NICU: neonatal intensive care unit, Index FPG: index fasting plasma glucose, BV dysfunction: blood vessel dysfunction, and OGTT: Oral Glucose Tolerance Test.