The goal of this randomised controlled trial is to test the effectiveness of a mobile instant messaging-based lifestyle intervention in pregnant women at risk of gestational diabetes
Gestational diabetes mellitus (GDM) is one of the most common medical conditions during pregnancy, affecting about 1 in 7 live births worldwide. There remains a lack of proven preventive strategies for GDM that could be readily adopted in clinical practice. Recent studies have suggested that lifestyle intervention delivered via mobile phone could help pregnant women prevent GDM, but more evidence is needed. This study aims to test a mobile instant messaging-based lifestyle intervention for GDM prevention in pregnant women at risk of GDM.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Enrollment
944
Nurse-led personalised lifestyle intervention grounded in social cognitive theory via WhatsApp or WeChat from baseline to the 28th gestational week, which aims to maintain optimal gestational weight gain using dietary and exercise advice and behavioural change techniques.
Follow-up reminders via text messaging as attention control.
Brief advice on GDM prevention aided by an A4-sized, half-fold leaflet, which covered the risk factors and complications of GDM, optimal gestational weight gain targets, and advice on dietary and exercise during pregnancy
Kwong Wah Hospital
Hong Kong, Hong Kong
RECRUITINGPrincess Margaret Hospital
Hong Kong, Hong Kong
RECRUITINGQueen Mary Hospital/ Tsan Yuk Hospital
Hong Kong, Hong Kong
RECRUITINGGDM diagnosis
GDM diagnosed by a 2-hour 75g oral glucose tolerance test interpreted according to the World Health Organization's 2013 criteria
Time frame: About 28th gestational week
Gestational weight gain
Measured in kilograms
Time frame: From baseline to the end of pregnancy (delivery)
Hypertensive disorders of pregnancy
Including gestational hypertension and preeclampsia
Time frame: During pregnancy
Pharmacological therapy for hyperglycaemia
Such as metformin and insulin
Time frame: During pregnancy
Mode of birth
Such as normal spontaneous delivery, caesarean section, assisted vaginal delivery
Time frame: At delivery
Gestational age at birth
Measured in weeks and days
Time frame: At delivery
Birthweight
Measured in grams
Time frame: At birth
Large for gestational age
Time frame: At birth
Small for gestational age
Time frame: At birth
Preterm birth
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Usual care provided by the prenatal clinic.
United Christian Hospital/ Tseung Kwan O Hospital
Hong Kong, Hong Kong
RECRUITINGDefined as birth before the 37th gestational week
Time frame: At birth
Neonatal hypoglycaemia
Time frame: At birth
Neonatal death
Defined as death within 28 days after birth
Time frame: Within 28 days after birth
Stillbirth
Defined as fetal death after the 20th gestational week
Time frame: During pregnancy