Pertinent to this analysis, respondents were asked to estimate what proportion of the primary care delivered to pediatric patients in their practice was provided by general pediatricians, pediatric subspecialists, or other physicians who care for children. Specifically, they were queried, "Approximately what percent of all the pediatric primary care that is delivered by physicians in your main practice/office location is provided by the following?" Following the question, a list including general pediatricians, pediatric subspecialists (certified or noncertified), family and general practitioners, and other specialists was shown, with blank spaces beside each provider category, along with a notation that the total needed to be 100%. Respondents were also asked to estimate how much of the primary care delivered to their own patients was provided by themselves and how much was delegated. The questionnaire item read, "In your main practice/office location, during a typical full week of practice, what proportion of the primary care of your patients only is delivered by YOU and what proportion is DELEGATED to other medical personnel?" In addition, respondents were asked to report how many full-time and part-time general pediatricians, pediatric subspecialists, and other physicians who care for children work at their practice. For these analyses, part-time physicians were counted as half of a full-time physician.