Type of feeding was classified in accordance with WHO definitions14: - EBF: children fed exclusively breastmilk, with no water, teas, juices, other types of milk or other foods; - predominant BF (PBF): children fed breastmilk plus water and/or tea and/or juices, but no other types of milk or food; - BF: children fed breastmilk irrespective of any other type of food.