Table 1 Timing of collection of data

Enrolment

− General information and identification details.

− Socio-economic and demographic details.

− Obstetric history.

− Fasting & 2 h plasma glucose, 1 h blood glucose, HbA1c, HB, Thyroid profile, Lipid profile.

− Height, weight, blood pressure.

− Knowledge and attitudes questionnaire.

− Foetal monitoring when possible.

Delivery

− Mode of delivery, birth weight, respiratory rate, ponderal index, APGAR score.

− Hypoglycaemia, shoulder dystocia, respiratory distress.

− Anthropometric details.

− Cord blood to assess insulin, c-peptide and glucose.

3 months postpartum

− Breastfeeding practices.

− Fasting and 2 h plasma glucose for the mothers.

− Weight of the mothers.

− Assessment of depression in the mothers.

6 months postpartum

− Breastfeeding practices.

− Fasting and 2 h plasma glucose for the mothers.

− Weight of the mothers.

− Assessment of depression in the mothers.

1 year postpartum

− Breastfeeding practices.

− Fasting and 2 h plasma glucose for the mothers.

− Lipid profile for the mothers.

− Weight of the mothers.

− Assessment of depression in the mothers.

− Weight, height and flank skin fold thickness of the children.

− Fasting and 2 h plasma glucose for the children.

− Insulin and lipid profile for the children.

2 years postpartum

− Breastfeeding practices.

Every year till year 10

− Fasting and 2 h plasma glucose for the mothers.

− Lipid profile for the mothers.

− Weight of the mothers.

Every 2nd year till year 15

− Weight, height and flank skin-fold thickness of the children.

− Fasting and 2 h plasma glucose for the children.

− Insulin and lipid profile for the children.