Question

3. A study was conducted to examine the association between breastfeeding and early infant weight gain. Infants and their mothers were invited into the study when the infant was first certified into WIC and then they were followed for five years. Infant feeding information was obtained from the mothers every six months as were measurements of weight and length/height of the infants and children.

1. What is the exposure?  
2. What is the outcome?
3. What is the study design (be specific)? ______________________________________
4. What is the measure of effect (i.e. the statistic that we use to examine the association)? _________________________________________________

Answer 1

a)

Here the exposure in this study is breastfeeding to the infants. As it is mentioned in the above that mothers and infants are invited into the study when the infant was first certified into WIC.

b)

Here, outcome is the weight and height of the infants/children after breastfeeding( mrasured from every 6 months).

c) Study design:

As the infant first certified into the WIC, they followed for 5 years, because they are under study. Then then took weight and height of the infants every six months as they were feeded by their mother to know that if there is any kind of relationship between breastfeeding and weight and height of the infants.

d)

Meausre effect:

We will use chi-square test or t-test as per requirement to measure the association between the variables.