Department of Family and Community Medicine, Center for Healthcare Policy and Research, UC Davis School of Medicine, Sacramento, CA.
Med Care. 2014 Jan;52(1):78-85. doi: 10.1097/MLR.0000000000000021.
Prior studies demonstrating associations between patient satisfaction with health care providers and preventive adherence were cross-sectional, limiting causal inferences. In cross-sectional and prospective analyses, we explored 3 hypotheses previously invoked to explain associations between satisfaction with providers and preventive adherence: (1) receiving preventive care increases satisfaction; (2) enhancing satisfaction increases preventive care; (3) satisfaction and adherence reflect patient characteristics, incompletely adjusted for in previous studies.
We conducted 3 sets of logistic regression analyses employing 2000-2010 Medical Expenditure Panel Survey data: 1 cross-sectional and 2 prospective (baseline preventive care/follow-up year satisfaction, and baseline satisfaction/follow-up year preventive care), each set cumulatively adjusting for patient demographics, socioeconomics, morbidity, health care access, and medical skepticism. Consumer Assessment of Health Plans Survey items measured satisfaction with care from all providers in the preceding year. Preventive care examined included influenza vaccination and colorectal cancer, Papanicolaou, mammography, and prostate-specific antigen screening.
In cross-sectional analyses adjusted for demographics (N = 74,792), highest (vs. lowest) quartile satisfaction was associated with preventive adherence [adjusted odds ratios (95% confidence interval)]: influenza vaccination 1.14 (1.07, 1.22); colorectal cancer screening 1.08 (0.99, 1.18); Papanicolaou screening 1.14 (1.04, 1.24); mammography screening 1.20 (1.11, 1.31); prostate-specific antigen screening 1.38 (1.25, 1.52). With full adjustment, associations of satisfaction with adherence were substantially attenuated, eliminated, or reversed. Prospective analyses yielded findings similar to the cross-sectional analyses.
Cross-sectional and prospective associations between satisfaction with providers and preventive care adherence were similarly explained by patient characteristics. The findings question previously hypothesized causal relationships between satisfaction and preventive adherence.
先前的研究表明,患者对医疗服务提供者的满意度与预防保健的依从性之间存在关联,但这些研究都是横断面研究,限制了因果推断。在横断面和前瞻性分析中,我们探讨了之前提出的 3 个假设,以解释提供者满意度与预防保健依从性之间的关联:(1)接受预防保健会增加满意度;(2)提高满意度会增加预防保健;(3)满意度和依从性反映了患者的特征,在之前的研究中未进行充分调整。
我们使用 2000-2010 年医疗支出调查数据进行了 3 组逻辑回归分析:1 个横断面和 2 个前瞻性(基线预防保健/随访年满意度和基线满意度/随访年预防保健),每组分析都累积调整了患者的人口统计学、社会经济学、发病率、医疗保健可及性和医疗怀疑。消费者对医疗计划调查的项目衡量了患者在前一年对所有提供者的满意度。检查的预防保健包括流感疫苗接种和结直肠癌、巴氏涂片、乳房 X 光检查和前列腺特异性抗原筛查。
在调整人口统计学因素的横断面分析中(N=74792),与最低满意度四分位数相比,最高满意度四分位数与预防保健依从性相关[调整后的优势比(95%置信区间)]:流感疫苗接种 1.14(1.07,1.22);结直肠癌筛查 1.08(0.99,1.18);巴氏涂片筛查 1.14(1.04,1.24);乳房 X 光检查筛查 1.20(1.11,1.31);前列腺特异性抗原筛查 1.38(1.25,1.52)。进行完全调整后,满意度与依从性之间的关联显著减弱、消除或反转。前瞻性分析得出的结果与横断面分析相似。
提供者满意度与预防保健依从性之间的横断面和前瞻性关联同样可以用患者特征来解释。这些发现对之前假设的满意度与预防保健之间的因果关系提出了质疑。