Table 1 Schedule of enrolment, intervention, and assessments during the GEMS Trial

Enrolment

 Eligibility screen

X

 Informed consent

X

 Allocation

X

Interventions

 Lower Criteria Group

X

X

X

X

X

 Higher Criteria Group

X

X

X

X

X

Activity/

assessments

 Inclusion/

exclusion form

X

X

 Consent form

X

 Randomisation

X

 Standard care for GDM if GDM by criteria allocated

X

X

X

X

 Routine pregnancy care if not GDM by criteria allocated

X

X

X

X

 Pregnancy, birth, and infant forms

X

 Serious adverse event form

X

X

X

X

 Primary outcome: Large for gestational age

X

X

 Secondary infant outcomes

X

X

X

 Maternal outcomes

X

X

X

X