Ngorsuraches Surachat, Lerkiatbundit Sanguan, Li Shu Chuen, Treesak Charoen, Sirithorn Rachnida, Korwiwattanakarn Montree
Department of Pharmacy Administration, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hatyai, Songkhla 90112, Thailand.
Res Social Adm Pharm. 2008 Sep;4(3):272-83. doi: 10.1016/j.sapharm.2007.10.002. Epub 2008 Aug 8.
The quality of the pharmacist-patient relationship has been examined in various perspectives, for example patient satisfaction. Trust is another concept within which the quality of the relationship might be examined and is critical in contemporary pharmacy practice.
To develop and validate a scale to measure patient trust in community pharmacists.
A 5-dimension conceptual model of trust, which includes fidelity, competence, honesty, confidentiality, and global trust, was originally used for scale development. Candidate items were generated and revised using expert reviews, focus group discussion, and think aloud method in the first phase. The items and their revisions were tested in 2 successive phases. Data were collected from 2 convenience samples of 400 each in Songkhla and Yala provinces of Thailand. Factor analysis and item analysis were used to determine dimensions and refine items of the trust scale. Internal consistency and construct validity of the scale were determined.
At first, exploratory factor analysis showed that the most interpretable solution consisted of 2 factors labeled Benevolence and Technical Competence. The Technical Competence had unsatisfactory internal consistency (Cronbach's alpha < 0.80). An improvement was made in the later phase and another dimension, Communication, was identified. The final 30-item scale, namely TRUST-Ph, with 3 dimensions had good internal consistency (Cronbach's alpha = 0.84-0.91). The scale exhibited a strong positive association with satisfaction with pharmacy services (r = 0.70, P < .001). It also showed positive associations between the level of patient trust and other patient-pharmacist aspects.
The developed scale (TRUST-Ph) to measure patient trust in community pharmacists had relatively high validity and reliability. It had 3 dimensions, which were Benevolence, Technical Competence, and Communication. The TRUST-Ph scale can be potentially used as a measure of patient-reported outcome for community pharmacist services.
药剂师与患者关系的质量已从多个角度进行了研究，例如患者满意度。信任是另一个可以用来审视这种关系质量的概念，并且在当代药学实践中至关重要。
开发并验证一个用于衡量患者对社区药剂师信任度的量表。
最初使用一个包含忠诚、能力、诚实、保密和总体信任的5维度信任概念模型来开发量表。在第一阶段，通过专家评审、焦点小组讨论和出声思维法生成并修订候选条目。这些条目及其修订版在两个连续阶段进行测试。数据从泰国宋卡府和也拉府的两个各有400人的便利样本中收集。使用因子分析和项目分析来确定信任量表的维度并完善条目。确定了该量表的内部一致性和结构效度。
起初，探索性因子分析表明最具解释力的解决方案由两个因子组成，分别标记为仁爱和技术能力。技术能力的内部一致性不令人满意（克朗巴哈系数<0.80）。在后期进行了改进，并确定了另一个维度，即沟通。最终的30条目量表，即TRUST-Ph，具有3个维度，内部一致性良好（克朗巴哈系数=0.84 - 0.91）。该量表与对药房服务的满意度呈强正相关（r = 0.70，P <.001）。它还显示了患者信任水平与其他患者 - 药剂师方面之间的正相关。
所开发的用于衡量患者对社区药剂师信任度的量表（TRUST-Ph）具有较高的效度和信度。它有3个维度，分别是仁爱、技术能力和沟通。TRUST-Ph量表有可能用作社区药剂师服务的患者报告结局的衡量指标。
