Migrating from a legacy fixed-format measure to CAT administration: calibrating the PHQ-9 to the PROMIS depression measures.

Migrating from a legacy fixed-format measure to CAT administration: calibrating the PHQ-9 to the PROMIS depression measures.
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DOI:
10.1007/s11136-011-9882-y
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发表时间:
2011-11
影响因子:
3.5
通讯作者:
Crane, Paul K.
Crane, Paul K.
中科院分区:
医学2区
文献类型:
--
作者:
Gibbons, Laura E.;Feldman, Betsy J.;Crane, Heidi M.;Mugavero, Michael;Willig, James H.;Patrick, Donald;Schumacher, Joseph;Saag, Michael;Kitahata, Mari M.;Crane, Paul K.

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我们为分析使用现有(传统)仪器收集的患者报告结果(PRO)数据提供了详细说明,以便可以将分数校准到PRO测量信息系统(PROIS)指标。这种校准促进了向计算机化自适应测试(CAT)PROMIS数据收集的迁移,同时促进了使用历史遗留数据和新PROIS数据的研究。来自华盛顿大学和阿拉巴马大学伯明翰艾滋病毒诊所的横断面便利样本(n=2,178)在2008年8月至2009年12月期间完成了PROMIS简表和患者健康问卷(PHQ-9)抑郁症症状测量。我们使用项目反应理论对测验进行了校准。我们比较了PHQ-9、PROMIS缩写和模拟PROMIS猫的测量精度。维度分析证实,PHQ-9可以校准到PROMIS度量标准。我们提供了用于根据PROMIS指标对PHQ-9进行评分的代码。PHQ-9的平均测量标准误差为0.49,PROMIS简写为0.35,3、8和9项模拟猫的平均标准误差分别为0.37、0.28和0.27。这里描述的战略促进了从固定格式遗留比额表到PROMIS CAT管理的迁移,并可能在其他情况下有用。
We provide detailed instructions for analyzing patient-reported outcome (PRO) data collected with an existing (legacy) instrument so that scores can be calibrated to the PRO Measurement Information System (PROMIS) metric. This calibration facilitates migration to computerized adaptive test (CAT) PROMIS data collection, while facilitating research using historical legacy data alongside new PROMIS data. A cross-sectional convenience sample (n = 2,178) from the Universities of Washington and Alabama at Birmingham HIV clinics completed the PROMIS short form and Patient Health Questionnaire (PHQ-9) depression symptom measures between August 2008 and December 2009. We calibrated the tests using item response theory. We compared measurement precision of the PHQ-9, the PROMIS short form, and simulated PROMIS CAT. Dimensionality analyses confirmed the PHQ-9 could be calibrated to the PROMIS metric. We provide code used to score the PHQ-9 on the PROMIS metric. The mean standard errors of measurement were 0.49 for the PHQ-9, 0.35 for the PROMIS short form, and 0.37, 0.28, and 0.27 for 3-, 8-, and 9-item-simulated CATs. The strategy described here facilitated migration from a fixed-format legacy scale to PROMIS CAT administration and may be useful in other settings.
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