Examining the psychometric properties of brief screening measures of depression and anxiety in chronic pain: The Patient Health Questionnaire 2-item and Generalized Anxiety Disorder 2-item

被引:20
|
作者
Bisby, Madelyne A. [1 ]
Karin, Eyal [1 ]
Scott, Amelia J. [1 ]
Dudeney, Joanne [1 ]
Fisher, Alana [1 ]
Gandy, Milena [1 ]
Hathway, Taylor [1 ]
Heriseanu, Andreea I. [1 ]
Staples, Lauren [1 ]
Titov, Nickolai [1 ]
Dear, Blake F. [1 ]
机构
[1] Macquarie Univ, ECtr Clin, Sch Psychol Sci, Sydney, NSW, Australia
关键词
anxiety; chronic pain; depression; measurement; RANDOMIZED CONTROLLED-TRIAL; MANAGEMENT PROGRAM; PRIMARY-CARE; PREVALENCE; PHQ-2; VALIDATION; VALIDITY; SCALES; GAD-2;
D O I
10.1111/papr.13107
中图分类号
R614 [麻醉学];
学科分类号
100217 ;
摘要
Objective Individuals with chronic pain experience anxiety and depressive symptoms at rates higher than the general population. The Patient Health Questionnaire 2-item (PHQ-2) and Generalized Anxiety Disorder 2-item (GAD-2) are brief screening measures of depression and anxiety, respectively. These brief scales are well-suited for use in routine care due to their brevity and ease of administration, yet their psychometric properties have not been established in heterogeneous chronic pain samples when administered over the Internet. Materials and Methods Using existing data from randomized controlled trials of an established Internet-delivered pain management program (n = 1333), we assessed the reliability, validity, diagnostic accuracy, and responsiveness to treatment change in the PHQ-2 and GAD-2, as well as the long-form counterparts. Exploratory analyses were conducted to obtain cutoff scores using those participants with diagnostic data (n = 62). Results The PHQ-2 and GAD-2 demonstrated appropriate reliability (eg, Cronbach's alpha = 0.79-0.84), validity (eg, higher scores in individuals with a diagnosis; p < 0.001), and responsiveness to treatment change (eg, pre- to post-treatment scores, p < 0.001). The psychometric properties of the short forms compared well with the longer forms. Cutoff scores on the short forms were consistent with general population samples, while cutoff scores on the long forms were higher than previously observed using general population samples. All four scales favored specificity over sensitivity. Conclusions The PHQ-2 and GAD-2 demonstrated acceptable psychometric properties in the current sample, as did the long forms. Based on our findings, the PHQ-2 and GAD-2 can be used as screening tools with chronic pain samples when administered over the Internet.
引用
收藏
页码:478 / 486
页数:9
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