The investigators are extracting de-identified retrospective data from the Vanderbilt University Medical Center electronic health record for mother-child pairs. From this data, the investigators will study the association between mother weight change during pregnancy and the risk of her child developing obesity during the first 5 years of life. Included mothers must have at least one weight measurement and at least one height measurement; they must have at least one child with weight/length measurements at birth and one additional same day height/weight measurement at or before 5 years of age.
Using retrospective data from the Vanderbilt University Medical Center electronic health record, the investigators will study the association between mother's weight / weight change before and during pregnancy and the development of childhood obesity up until 5 years of age.