Department of Medical Social Sciences.
Center for Pediatric and Community Research.
Psychol Assess. 2021 Jul;33(7):610-618. doi: 10.1037/pas0001009. Epub 2021 May 31.
Depression is a leading mental health concern across the U.S. and worldwide. There are myriad assessments to evaluate depressive symptoms, including the Edinburgh Postnatal Depression Scale (EPDS), which is widely used to evaluate women's pre- and postnatal depression but not as prevalent at other timepoints in adulthood, limiting its utility for longitudinal research. As part of the National Institutes of Health's (NIH) Environmental influences on Child Health Outcomes (ECHO) Research Program, the current study sought to develop a common metric so that scores on the EPDS can be converted to the standardized Patient-Reported Measurement Information System (PROMIS®) T-score metric. Drawing on data from the ECHO-Prenatal Alcohol in SIDS and Stillbirth cohort, this study used a single-group linking design, where 1,263 mothers completed the EPDS and PROMIS-Depression measures at the same time. Score linking was conducted using equipercentile and item response theory (IRT) methods. Results showed both linking methods provide robust, congruent results, and subgroup invariance held across age, race, ethnicity, education, and geographic location. The IRT-based unidimensional fixed-parameter calibration was selected due to its model simplicity, and a crosswalk table was established to convert scores from the EPDS to PROMIS T-scores. Overall, this study provides a way to aggregate data across various depression measures and timepoints, such that researchers and clinicians now have the ability to directly compare and combine EPDS data with PROMIS and other depression measures already score-linked to PROMIS. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
抑郁是美国和全球范围内主要的心理健康问题。有无数的评估方法可以评估抑郁症状，包括爱丁堡产后抑郁量表（EPDS），该量表广泛用于评估女性产前和产后的抑郁，但在成年期的其他时间点并不常见，限制了其在纵向研究中的应用。作为美国国立卫生研究院（NIH）环境对儿童健康结果（ECHO）研究计划的一部分，本研究旨在开发一种通用指标，以便将 EPDS 的分数转换为标准化的患者报告测量信息系统（PROMIS®）T 分数指标。本研究利用 ECHO-产前酒精在 SIDS 和死胎队列中的数据，采用单组链接设计，1263 名母亲同时完成了 EPDS 和 PROMIS-抑郁量表的测量。使用等百分位和项目反应理论（IRT）方法进行评分链接。结果表明，两种链接方法都提供了可靠、一致的结果，并且在年龄、种族、民族、教育程度和地理位置方面保持了亚组不变性。基于 IRT 的单维固定参数校准由于其模型简单而被选中，并建立了一个转换表，将 EPDS 的分数转换为 PROMIS T 分数。总的来说，这项研究提供了一种方法，可以汇总各种抑郁测量和时间点的数据，以便研究人员和临床医生现在能够直接比较和结合 EPDS 数据与 PROMIS 以及已经与 PROMIS 链接的其他抑郁测量。（PsycInfo 数据库记录（c）2021 APA，保留所有权利）。
