title: Translating CESD-20 and PHQ-9 Scores to PROMIS Depression.
abstract: This study examined the accuracy of depression cross-walk tables in a sample of people with multiple sclerosis (MS). The tables link scores of two commonly used depression measures to the Patient Reported Outcome Measurement Information System Depression (PROMIS-D) scale metric. We administered the 8-item PROMIS-D (Short-Form 8b; PROMIS-D-8), the 20-item Center for Epidemiologic Studies Depression Scale (CESD-20), and the 9-item Patient Health Questionnaire (PHQ-9) to 459 survey participants with MS. We examined correlations between actual PROMIS-D-8 scores and the scores predicted by cross-walks based on PHQ-9 and CESD-20 scores. Intraclass correlation coefficients were used to assess correspondence. Consistency in severity classification was also calculated. Finally, we used Bland-Altman plots to graphically examine the levels of agreement. The correlations between actual and cross-walked PROMIS-D-8 scores were strong (CESD-20 = .82; PHQ-9 = .74). The intraclass correlation was moderate (.77). Participants were consistently classified as having or not having at least moderate depressive symptoms by both actual and cross-walked scores derived from the CESD-20 (90%) and PHQ-9 (85%). Bland-Altman plots suggested the smaller differences between actual and cross-walked scores with greater-than-average depression severity. PROMIS cross-walk tables can be used to translate depression scores of people with MS to the PROMIS-D metric, promoting continuity with previous research.
authors.affiliation: 1 University of Washington, Seattle, WA, USA.
authors.forename: Jiseon
authors.initials: J
authors.lastname: Kim
authors.affiliation: 2 Chungnam National University, Daejeon, Republic of Korea.
authors.forename: Hyewon
authors.initials: H
authors.lastname: Chung
authors.affiliation: 3 Stetson University, DeLand, FL, USA.
authors.forename: Robert L
authors.initials: RL
authors.lastname: Askew
authors.affiliation: 4 Wayne State University, Detroit, MI, USA.
authors.forename: Ryoungsun
authors.initials: R
authors.lastname: Park
authors.affiliation: 5 Group Health Research Institute, Seattle, WA, USA.
authors.forename: Salene M W
authors.initials: SM
authors.lastname: Jones
authors.affiliation: 6 Northwestern University, Chicago, IL, USA.
authors.forename: Karon F
authors.initials: KF
authors.lastname: Cook
authors.affiliation: 1 University of Washington, Seattle, WA, USA.
authors.forename: Dagmar
authors.initials: D
authors.lastname: Amtmann
mesh_terms: D000328:Adult; D000368:Aged; D003866:Depressive Disorder / Q000145:classification / Q000175:diagnosis* / Q000523:psychology*; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000523:psychology*; D000071066:Patient Reported Outcome Measures; D010552:Personality Assessment / Q000706:statistics & numerical data*; D011594:Psychometrics / Q000706:statistics & numerical data*; D015203:Reproducibility of Results; D013223:Statistics as Topic; D011795:Surveys and Questionnaires
keywords: CESD; Center for Epidemiologic Studies Depression Scale; PHQ-9; PROMIS; Patient Health Questionnaire-9; Patient Reported Outcome Measurement Information System; cross-walking; depression; linking; multiple sclerosis