文章基本信息

标题：
Psychometric evaluation of the hypoparathyroidism symptom diary
作者：Theresa Coles ; Theresa Coles ; Kristina Chen 等
期刊名称：Patient Related Outcome Measures
印刷版ISSN：1179-271X
电子版ISSN：1179-271X
出版年度：2019
卷号：10
页码：25-36
DOI：10.2147/PROM.S179310
语种：English
出版社：Dove Medical Press Ltd
摘要：Purpose: To conduct an initial psychometric evaluation of the reliability and validity of the Hypoparathyroidism Symptom Diary (HPT-SD). Patients and methods: Data were collected during a cross-sectional, observational study. Participants with self-reported hypoparathyroidism (HPT) completed the HPT-SD, the Functional Assessment in Cancer Therapy–Cognitive Function (FACT-Cog), the Functional Assessment of Chronic Illness Therapy–Fatigue (FACIT-Fatigue), and the Hospital Anxiety and Depression Scale (HADS) measures. Item- and scale-level internal consistency reliability, known-groups validity, and construct validity were evaluated. Subscales were identified and preliminary scoring algorithms were developed. Results: The study included 52 participants (mean age, 51 years). Overall, the measurement properties of the HPT-SD were very good. Item-level response frequency distributions showed evidence of possible floor effects for four muscle-related symptom items. Inter-item correlations revealed a pattern of relationships among symptom items ( r =0.3–0.8) and among impact items ( r =0.5–0.7) and provided evidence for two HPT-SD subscales: Symptoms and Impacts. Construct validity correlations supported a priori convergent validity hypotheses ( r ≥0.4) between HPT-SD subscales and the FACT-Cog, FACIT-Fatigue, and HADS. Mean HPT-SD Symptom and Impact scores were in the expected direction and significantly different between subgroups of patients with high and low HPT disease severity. Conclusion: Results indicate that the HPT-SD is an appropriate measure of HPT-related symptoms and impacts. Floor effects may be attributed to the observational study design: participants manage symptoms with calcium and active vitamin D supplements prior to an escalation in severity. Future studies should assess the HPT-SD measurement properties using longitudinal study designs.
关键词：hypoparathyroidism; symptom; psychometric; validation; impacts; patient-reported outcome