My program has run into inconsistencies in medical records about how premature a child is. For example, the birth record says the child was born at 35 weeks, but the pediatrician's notes say the child was born at 38 weeks gestation. How should we adjust the child's age for prematurity in instances like this?
In cases such as these, we recommend averaging the two dates and using the average to determine the child's adjusted age. In many cases, the difference may not affect the questionnaire interval used.