Int J Prosthodont. 2011 Jul-Aug;24(4):332-41.
The aim of this study was to develop and verify the reliability and validity of a questionnaire to assess patient satisfaction with fixed dental prostheses (FDPs).
A questionnaire was developed, pilot-tested, and modified. It assessed esthetics, masticatory function, phonetics, cleansibility, and cost satisfaction using a visual analog scale and whether patients would elect to undergo the same treatment again (yes/no). It was sent to patients with a known evidence-based outcome (survival) who received FDPs from 1984 to 2005 (n = 986) in one private prosthodontic practice. Reliability and validity were analyzed using the Student t, Mann-Whitney U, Kruskal Wallis, Cronbach alpha, Spearman-Brown, Correlation matrix, Bartlett sphericity, Kaiser-Meyer-Olkin (KMO), and factor analysis tests. Significance was set at P = .05.
Five hundred patients responded (50.7%). A Cronbach alpha value of 0.8 and split-sample Spearman-Brown value of 0.7 indicated good reliability. Step-wise removal of items did not improve internal consistency. Discriminant construct validity assessment showed no item redundancy. Satisfaction of patients who had experienced prosthesis failure (n = 52) was significantly less than their counterparts (73% ± 3% vs 83% ± 0.6%, P = .004), ascertaining convergent construct validity. Factor analysis (Bartlett sphericity, P < .001; KMO = 0.84) identified two components (Eigenvalues ⋝ 1.0) that explained 93.18% (varimax rotation) of variations. Component 1 included satisfaction with function (esthetics, mastication, phonetics, and cleansibility); component 2 included satisfaction with costs and whether patients would undergo the same treatment again.
The Patient Satisfaction Questionnaire developed proved reliable and valid for assessing patient-evaluated outcomes of FDPs. Use of this questionnaire in further research is justified. Int J Prosthodont 2011;24:332-341.
本研究旨在开发并验证评估固定义齿修复体(FDPs)患者满意度的问卷的可靠性和有效性。
研制了一份问卷,并进行了预试验和修改。它使用视觉模拟量表评估美观、咀嚼功能、语音、清洁度和成本满意度,并询问患者是否会再次选择接受相同的治疗(是/否)。该问卷发送给了在一家私人修复诊所接受 1984 年至 2005 年 FDPs 治疗且已知有基于证据的预后(存活率)的患者(n=986)。使用学生 t 检验、Mann-Whitney U 检验、Kruskal Wallis 检验、Cronbach alpha 检验、Spearman-Brown 检验、相关矩阵、Bartlett 球形检验、Kaiser-Meyer-Olkin(KMO)检验和因子分析检验来分析可靠性和有效性。P 值设定为 P=0.05。
500 名患者作出了回应(50.7%)。Cronbach alpha 值为 0.8,分半 Spearman-Brown 值为 0.7,表明具有良好的可靠性。逐步删除项目并未提高内部一致性。判别结构有效性评估表明没有项目冗余。经历过修复体失败(n=52)的患者满意度显著低于未经历过的患者(73%±3%对 83%±0.6%,P=0.004),从而确定了收敛结构有效性。因子分析(Bartlett 球形检验,P<0.001;KMO=0.84)确定了两个分量(特征值≈1.0),它们解释了 93.18%(方差最大旋转)的变化。分量 1 包括对功能(美观、咀嚼、语音和清洁)的满意度;分量 2 包括对成本和是否会再次接受相同治疗的满意度。
研制的患者满意度问卷具有可靠性和有效性,可用于评估 FDPs 的患者评估结果。在进一步的研究中使用该问卷是合理的。