Maternal socio-demographic and obstetric factors | Borough of residence |
 | Ethnicity |
 | Marital status |
 | Parity |
 | Mode of delivery |
 | Socio-economic deprivation as measured by the Index of Multiple Deprivation scores. |
Infant feeding practices in hospital | The timing of breastfeeding initiation after delivery Infant formula-feeding status in hospital Teat-giving status in hospital |