O'Bannon J E, Mullooly J P, McCabe M A
Med Care. 1978 Mar;16(3):226-44. doi: 10.1097/00005650-197803000-00005.
In this paper we have examined the amount of time that physicians (MDs) and physician's assistants (PAs) expended on office visits. The purpose was to determine the extent to which a series of patient-related and system-related characteristics explain variations in that time. Using regression analyses, we found most of the explained variation generally to be due to system-related characteristics. Whether the provider was an MD or PA made little difference in the length of time spent with patients. The principal determinant of provider time for unscheduled and scheduled 15-minute visits was the patient-load (number of patients per minute); for scheduled 30-minute visits, the number of associated morbidities was relatively more important than patient-load. Discriminant analysis was used to identify factors that could distinguish PA visits that require an MD input from those that do not. The data were collected from three months of observation in the department of medicine of a prepaid group practice.
在本文中，我们研究了医生（医学博士）和医师助理（执业助理医师）进行门诊所花费的时间量。目的是确定一系列与患者相关和与系统相关的特征在多大程度上能够解释该时间的变化。通过回归分析，我们发现大部分可解释的变化通常归因于与系统相关的特征。提供医疗服务者是医学博士还是执业助理医师，对与患者相处的时间长度影响不大。对于非预约和预约的15分钟门诊，提供医疗服务者时间的主要决定因素是患者负担（每分钟患者数量）；对于预约的30分钟门诊，相关疾病的数量比患者负担相对更重要。判别分析用于识别能够区分需要医学博士参与的执业助理医师门诊和不需要医学博士参与的门诊的因素。数据是从一个预付团体医疗实践的内科部门三个月的观察中收集的。
