Barriers and facilitators for universal gestational diabetes Mellitus screening in a low resource setting: a cross-sectional study in Sri Lanka

Gestational Diabetes Mellitus (GDM) is associated with adverse maternal and perinatal outcomes and increased risk of developing diabetes in later life. Sri Lanka adopted universal GDM screening at two time points in pregnancy (before 12 weeks and between 24 and 28 weeks) in 2014 and its utilization has not been assessed. This study assessed the utilization of GDM screening services and associated factors among antenatal mothers in Southern Sri Lanka. A cross-sectional study was carried out in a consecutive sample of 420 postpartum mothers who delivered at three major hospitals in Sri Lanka. Data were collected on socio-demographics, pregnancy, availability and utilization of screening services and logistics using an interviewer-administered questionnaire and a data record sheet. Data was analysed using SPSS software. Chi-square test and binary logistic regression was used to assess the association between variables. The coverage of first and second screening tests were 91.4% and 94.5% and timeliness were 72.4% and 59.5%, respectively. The median period of amenorrhoea at the first and second screening were 10.0 (inter-quartile range: 2.5) weeks and 28.0 (inter-quartile range: 1.5) weeks. A higher utilization was associated with higher income (OR = 3.4, 95% CI: 1.1-10.5) and planned pregnancy (OR = 4.9, 95% CI: 2.2-10.7) for the first screening test. Primiparity (OR = 0.3, 95% CI: 0.1-0.9) and proximity of the nearest laboratory (OR = 3.5, 95% CI: 1.0-12.0) were positively associated with the second screening test. The timeliness of both screening tests was associated with planned pregnancy (OR = 2.1, 95% CI: 1.1-4.0 and OR = 2.3, 95% CI: 1.1-4.5) and being non-employed during the pregnancy (OR = 2.5, 95% CI: 1.4-4.3 and OR = 2.3, 95% CI: 1.3-4.1). A high utilization of GDM screening was observed. Timeliness should be ensured through improved availability and accessibility of screening facilities.