Davidson P L, Cunningham W E, Nakazono T T, Andersen R M
Department of Medicine and Health Services, UCLA 90095-1772, USA.
Med Care Res Rev. 1999 Mar;56(1):74-93. doi: 10.1177/107755879905600105.
Data collected from the International Collaborative Study of Oral Health Outcomes USA (ICS-II) research locations were used to evaluate the relationship between having a usual source of dental care (USDC) and access to dental services. The robustness of the USDC effect after reducing simultaneity bias was tested in the population-based samples using sensitivity analysis. Logistic regression results provided evidence that USDC was the strongest and most consistent predictor of a dental visit in the past 12 months regardless of geographic location, dental care delivery system, or cultural diversity of the population. Even removing cases that had a USDC for less than 1 or 2 years, the effect remained. From a policy perspective, USDC remains critical to understanding and explaining dental are utilization patterns. The findings suggest the need for designing interventions to increase the availability of a regular provider among vulnerable populations.
从美国口腔健康结果国际合作研究（ICS-II）研究地点收集的数据用于评估拥有常规牙科护理来源（USDC）与获得牙科服务之间的关系。在基于人群的样本中，使用敏感性分析测试了减少同时性偏差后USDC效应的稳健性。逻辑回归结果表明，无论地理位置、牙科护理提供系统或人群的文化多样性如何，USDC都是过去12个月内牙科就诊的最强且最一致的预测因素。即使去除拥有USDC不到1年或2年的病例，该效应仍然存在。从政策角度来看，USDC对于理解和解释牙科服务利用模式仍然至关重要。研究结果表明，需要设计干预措施，以增加弱势群体中常规医疗服务提供者的可及性。
