Propiedades psicométricas del PHQ-9 (Patient Health Questionnaire) en centros de atención primaria de Chile

Abstract

Background: Simple and brief questionnaires with adequate psychometric properties are useful for the early detection of depressive disorders. Aim: To analyze the psychometric behavior of the Patient Health Questionnaire (PHQ-9) in Chile. Material and Methods: Data were collected from 1,738 adult patients, consulting in primary health care centers. The values obtained in the PHQ-9 were compared with those of the Composite International Diagnostic Interview (CIDI). Results: The mean score of PHQ-9 was 4.85 ± 5.57. Internal consistency indices were high. McDonald´s ω coefficient of was 0.90 and Cronbach alpha 0.89. A confirmatory factor analysis showed a good fit of the one-dimensional model. Using a cutoff score of seven determined with the receiver operating characteristic (ROC) curve, the sensitivity and specificity of the instrument were 0.8 and 0.7, when compared with CIDI diagnoses. Conclusions: PHQ-9 is a useful instrument for the screening of depressive disorders in primary health care centers in Chile.

Psychometric Properties of the Patient Health Questionnaire-9 in Elderly Chilean Primary Care Users

“…In this study, the psychometric properties of the PHQ-9 and their usefulness as a depressive disorder screening instrument are analyzed in a sample of older Chilean adults. Although this is not the only study of the functioning of the PHQ-9 that has been organized in Chile (23,24), to our knowledge, it is the first study targeted at the older adult population, using a large sample of older adults who attend PHC centers. In addition, it has the advantage of having used the CIDI as a gold standard, which is an instrument widely applied in epidemiological studies due to its rigorous use of diagnostic criteria for established mental disorders.…”

“…Concerning the structural validity of the PHQ-9, there is evidence corroborating the unidimensional structure of the scale (11,(24)(25)(26)(27)(28)(29)(30). However, some evidence has been found supporting a two-dimensional solution (16,18,19,31).…”

“…Nevertheless, recent evidence regarding the optimal cut-off score for screening depression found that scores between 8 and 11 had satisfactory properties (8). In Chile, the PHQ-9 has been used in PHC contexts, showing evidence of good reliability and screening accuracy, with the original and lower cut-off scores (23,24). Some authors argue that in the elderly, a lower cut-off score in the PHQ-9 would augment both sensitivity and specificity (20).…”

Behavioral and sociodemographic predictors of anxiety and depression in patients under epidemiological surveillance for COVID-19 in Ecuador

“…The psychometric properties of the measure are good, notable for test-retest reliability of 0.84 and internal consistency of 0.89 [25]. The Spanish version of this measure, which has comparable psychometric properties (Cronbach α = .89) with the original version, was used in the present study [26]. The optimal cut-off score for diagnosing depression with the Spanish version of this measure has been proposed to be 12 [27].…”

Impact of AMO enhancing human resource management practices on sustainable competitive advantage in insurance companies in Qatar

“…Moreover, McDonald's omega coefficient came between 0.911 and 0.940, which indicates that all omega values are higher than the threshold criterion, i.e. 0.70 (Meneses et al, 2019;Saldivia et al, 2019). Hence, the research instrument is characterized by validity and reliability.…”