Photo credit: Sitara (Gogi) Grewal
Anemia Risk Factors
Multiple factors can contribute to the development of anemia. Population attributable fraction (PAF) can be a useful measure to quantify the impact of risk factors on anemia burden. PAF estimates the proportion of disease burden in a population that can be attributed to a specific risk factor. Two components are required for calculating PAF, including the Prevalence of Exposure (i.e., proportion of the population exposed to the risk factor of interest) and Relative Risk (a measure of the association between the risk factor and anemia). We illustrate the calculation of PAF for iron deficiency in Malawi preschool children. The SAS and R sample code and a sample data set are provided in the following.
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