Hand Christopher, Morley Sylvia, Adams Malcolm
School of Health Policy and Practice, University of East Anglia, Norwich NR4 7TJ, UK.
Prim Care Respir J. 2000 Jun;9(1):12-15. doi: 10.1038/pcrj.2000.10. Epub 2000 Jun 1.
To develop a valid and reliable questionnaire for measuring patients' beliefs about inhaler treatments for asthma.
In seven general practices, 335 patients prescribed both beclomethasone and salbutamol inhalers completed a 66-item questionnaire. Sub-scales were developed using factor analysis and a 29-item questionnaire sent to 90 patients in another practice to estimate test-retest reliability.
Three factors explained 31.4% of the variance relating to beliefs about inhalers: preventing asthma symptoms, problems with and concerns about inhalers, and relieving asthma symptoms. Cronbach's alpha coefficients of the sub-scales were 0.71, 0.70 and 0.70 respectively. Intra-class correlation coefficients were 0.87 or more for all three sub-scales. The prevention and relief scale scores were significantly correlated with estimates of corticosteroid and β-agonist use.
A valid and reliable questionnaire has been developed for measuring patients' beliefs about inhaler treatments for asthma. Its utility in predicting adherence and facilitating patient education needs to be tested.
开发一种有效且可靠的问卷，用于测量患者对哮喘吸入器治疗的认知。
在七家普通诊所中，335名同时使用倍氯米松和沙丁胺醇吸入器的患者完成了一份包含66个条目的问卷。通过因子分析得出子量表，并将一份包含29个条目的问卷发送给另一家诊所的90名患者，以评估重测信度。
三个因子解释了与吸入器认知相关的31.4%的方差：预防哮喘症状、吸入器的问题及担忧、缓解哮喘症状。各子量表的克朗巴赫α系数分别为0.71、0.70和0.70。所有三个子量表的组内相关系数均为0.87或更高。预防和缓解量表得分与皮质类固醇和β受体激动剂使用的估计值显著相关。
已开发出一种有效且可靠的问卷，用于测量患者对哮喘吸入器治疗的认知。其在预测依从性和促进患者教育方面的效用有待测试。
