We agree that inclusion of pediatricians who are not members of the AAP and family physicians is important for surveys that examine issues relevant to the care of children. As we previously stated in our article, including only AAP members may have influenced the results of our survey.1 At the time our study was conducted, results of the follow-up study by Freed et al2 were not available. Their study demonstrated differences between AAP members and nonmembers with respect to agreement and adoption of universal hepatitis B immunization. In the state of Illinois, 81% of board-certified pediatricians are AAP members (Laurie Hall, oral communication, October 19, 1994). This value is similar to the percentage of pediatrician respondents who were AAP members in the follow-up study by Freed et al2 (82%). While we agree that AAP nonmembers may immunize infants and children, our survey results of AAP
Kraus DM, Campbell MM, Marcinak JF. Importance of Sampling Frame in Physician Surveys-Reply. Arch Pediatr Adolesc Med. 1995;149(6):706. doi:10.1001/archpedi.1995.02170190115025
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