Paddock L E, Veloski J, Chatterton M L, Gevirtz F O, Nash D B
Office of Health Policy and Clinical Outcomes, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania 19107, USA.
Diabetes Care. 2000 Jul;23(7):951-6. doi: 10.2337/diacare.23.7.951.
To develop a reliable and valid questionnaire to measure patient satisfaction with diabetes disease management programs.
Questions related to structure, process, and outcomes were categorized into 14 domains defining the essential elements of diabetes disease management. Health professionals confirmed the content validity. Face validity was established by a patient focus group. The questionnaire was mailed to 711 patients with diabetes who participated in a disease management program. To reduce the number of questionnaire items, a principal components analysis was performed using a varimax rotation. The Scree test was used to select significant components. To further assess reliability and validity; Cronbach's alpha and product-moment correlations were calculated for components having > or =3 items with loadings >0.50.
The validated 73-item mailed satisfaction survey had a 34.1% response rate. Principal components analysis yielded 13 components with eigenvalues > 1.0. The Scree test proposed a 6-component solution (39 items), which explained 59% of the total variation. Internal consistency reliabilities computed for the first 6 components (alpha = 0.79-0.95) were acceptable.
The final questionnaire, the Diabetes Management Evaluation Tool (DMET), was designed to assess patient satisfaction with diabetes disease management programs. Although more extensive testing of the questionnaire is appropriate, preliminary reliability and validity of the DMET has been demonstrated.
开发一种可靠且有效的问卷，以测量患者对糖尿病疾病管理项目的满意度。
与结构、过程和结果相关的问题被归类为14个领域，这些领域定义了糖尿病疾病管理的基本要素。卫生专业人员确认了内容效度。通过患者焦点小组确定了表面效度。该问卷被邮寄给711名参与疾病管理项目的糖尿病患者。为了减少问卷项目数量，使用方差最大化旋转进行主成分分析。碎石图检验用于选择显著成分。为了进一步评估信度和效度，对项目数≥3且载荷>0.50的成分计算了克朗巴哈系数和积差相关系数。
经过验证的73项邮寄式满意度调查的回复率为34.1%。主成分分析产生了13个特征值>1.0的成分。碎石图检验提出了一个6成分解决方案（39个项目），该方案解释了总变异的59%。计算出的前6个成分的内部一致性信度（α = 0.79 - 0.95）是可以接受的。
最终问卷——糖尿病管理评估工具（DMET）旨在评估患者对糖尿病疾病管理项目的满意度。尽管对该问卷进行更广泛的测试是合适的，但已证明DMET具有初步的信度和效度。
