Cited by 347Anxiety, Depression, Psychometrics, Treatment, Cognitive ProcessesTelemedicine and Telehealth ImplementationSurvey Methodology and Nonresponse

Assessing depression in primary care with the PHQ-9: Can it be carried out over the telephone?

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Pinto-Meza, Alejandra, Serrano-Blanco, Antoni, Peñarrubia, Maria T., Blanco, Elena, Haro, Josep Maria·2005·Journal of General Internal Medicine

Abstract

Background Telephone assessment of depression for research purposes is increasingly being used. The Patient Health Questionnaire 9-item depression module (PHQ-9) is a well-validated, brief, self-reported, diagnostic, and severity measure of depression designed for use in primary care (PC). To our knowledge, there are no available data regarding its validity when administered over the telephone.Objective The aims of the present study were to evaluate agreement between self-administered and telephone-administered PHQ-9, to investigate possible systematic bias, and to evaluate the internal consistency of the telephone-administered PHQ-9.Methods Three hundred and forty-six participants from two PC centers were assessed twice with the PHQ-9. Participants were divided into 4 groups according to administration procedure order and administration procedure of the PHQ-9: Self-administered/Telephone-administered; Telephone-administered/Self-administered; Telephone-administered/Telephone-administered; and Self-administered/Self-administered. The first 2 groups served for analyzing the procedural validity of telephone-administered PHQ-9. The last 2 allowed a test-retest reliability analysis of both self- and telephone-administered PHQ-9. Intraclass correlation coefficient (ICC) and weighted kappa (for each item) were calculated as measures of concordance. Additionally, Pearson's correlation coefficient, Student's t-test, and Cronbach's alpha were analyzed.Results Intraclass correlation coefficient and weighted kappa between both administration procedures were excellent, revealing a strong concordance between telephone- and self-administered PHQ-9. A small and clinically nonsignificant tendency was observed toward lower scores for the telephone-administered PHQ-9. The internal consistency of the telephone-administered PHQ-9 was high and close to the self-administered one.Conclusions Telephone and in-person assessments by means of the PHQ-9 yield similar results. Thus, telephone administration of the PHQ-9 seems to be a reliable procedure for assessing depression in PC.

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  1. Gra ¨fe K, Zipfel S, Herzog W, Lo ¨we B. Screening for psychiatric disorders with the Patient Health Questionnaire (PHQ). Results from the German validation study. Diagnostica. 2004;50:171-81.
  2. Spitzer RL, Williams JB. Clasificacio ´n de los trastornos mentales [Clas- sification of mental disorders]. In: Kaplan HI, Sadock BJ, eds. Tratado de psiquiatrı ´a [Comprehensive Textbook of Psychiatry]. 2nd edn. Barcelo- na, Spain: Salvat; 1989:585-607.

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Authors
Pinto-Meza, A., Serrano-Blanco, A., Peñarrubia, M. T., Blanco, E., & Haro, J. M.
Venue
Journal of General Internal Medicine
Published
2005-08
Volume
20
Issue
8
Pages
738-742
ISSN
  • 0884-8734 (ISSN-L)
  • 1525-1497
OpenAlex
W2037263999
Cited by
347
References
23
Citations by year
2026: 1 · 2025: 13 · 2024: 13 · 2023: 25 · 2022: 19 · 2021: 23 · 2020: 24 · 2019: 18 · 2018: 20 · 2017: 13 · 2016: 19 · 2015: 20 · 2014: 23 · 2013: 14 · 2012: 21
FWCI
10.80
Type
journal article
Language
en
Open access
Locations
  • Journal of General Internal Medicine (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Telemedicine and Telehealth Implementation
  • Social Sciences › Sociology and Political Science › Survey Methodology and Nonresponse
Keywords
depression assessment, PHQ-9, telephone administration, self-administered questionnaire, primary care, test-retest reliability, internal consistency, measurement agreement
MeSH terms
Adult, Aged, Depression, Female, Health Status Indicators, Humans, Male, Middle Aged, Primary Health Care, Surveys and Questionnaires, Telephone, Reproducibility of Results

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