This trial will evaluate a package of three interconnected educational/behavioural interventions aimed at: a) improving knowledge and skills of GDM guidelines and skills of health providers; b) raising awareness of importance of GDM screening among pregnant women and their families; and c) improving confidence and skills in self-management among those diagnosed with GDM. The interventions will be delivered through the medium of film as they are low-cost and scalable, and are particularly suitable for people who are not very literate, making them ideal for low- and middle-income countries (LMICs).

The research will be carried out in Uganda (Entebbe) and India (Bengaluru). A careful contextual analysis will precede the development of a culturally-tailored film-based intervention for each setting, which will be iteratively refined using qualitative research methods till it is fit for purpose. The effectiveness of the intervention will be evaluated in independent cluster randomised trials, involving ~10,000 pregnant women across 30 maternity units at each site. The films will be made available in the intervention arm facilities: for viewing by doctors and nurses at their meetings, for continual screening in waiting areas of antenatal clinics, and during group education sessions (and personal mobile use) for GDM patients. Where video/projection facilities are unavailable, small low-cost projectors will be made available. Control arms will follow usual care practices.

The principal research question is whether a low-cost educational/behavioural intervention delivered through a package of culturally-tailored films can provide scalable improvements in timely detection and management of GDM. This will be evaluated through assessing three endpoints: a) detection of GDM at 32 weeks of; b) glycaemic control (fasting glucose) in women with GDM at ~34 weeks of pregnancy; and c) adverse perinatal outcomes associated with GDM. Interviews will be conducted with women and health providers to help understand how and why the intervention may be (or may not be) successful. The ultimate aim of the project is to contribute to scientific evidence underpinning the use of films in cost-effectively scaling up behavioural interventions in low literacy settings.

Inclusion Criteria:

• Pregnant women aged 18 or over attending for antenatal care at participating health facilities.
• Pregnant women willing and able to give informed consent.

Exclusion Criteria:

• Pregnant women <18 years
• No informed consent

Indian Council of Medical Research guidance stipulates that the main India dataset should be retained in India. Therefore, anonymised data from either country will not made freely available. A controlled access model will be followed: anonymised data will be shared on request, subject to approval from the steering group and Independent Access Advisor. Data sharing will be subject to ethical approval.