Screening for depression in primary care with Patient Health Questionnaire-9 (PHQ-9): A systematic review

L Costantini, C Pasquarella, A Odone… - Journal of affective …, 2021‏ - Elsevier
Background Depression is a leading cause of disability. International guidelines recommend
screening for depression and the Patient Health Questionnaire 9 (PHQ-9) has been …

Accuracy of the PHQ-2 alone and in combination with the PHQ-9 for screening to detect major depression: systematic review and meta-analysis

B Levis, Y Sun, C He, Y Wu, A Krishnan, PM Bhandari… - Jama, 2020‏ - jamanetwork.com
Importance The Patient Health Questionnaire depression module (PHQ-9) is a 9-item self-
administered instrument used for detecting depression and assessing severity of …

Accuracy of Patient Health Questionnaire-9 (PHQ-9) for screening to detect major depression: individual participant data meta-analysis

B Levis, A Benedetti, BD Thombs - bmj, 2019‏ - bmj.com
Objective To determine the accuracy of the Patient Health Questionnaire-9 (PHQ-9) for
screening to detect major depression. Design Individual participant data meta-analysis. Data …

Equivalency of the diagnostic accuracy of the PHQ-8 and PHQ-9: a systematic review and individual participant data meta-analysis

Y Wu, B Levis, KE Riehm, N Saadat, AW Levis… - Psychological …, 2020‏ - cambridge.org
BackgroundItem 9 of the Patient Health Questionnaire-9 (PHQ-9) queries about thoughts of
death and self-harm, but not suicidality. Although it is sometimes used to assess suicide risk …

Prevalence of mental disorders in refugees and asylum seekers: a systematic review and meta-analysis

M Patanè, S Ghane, E Karyotaki, P Cuijpers… - Global Mental …, 2022‏ - cambridge.org
Background Studies have identified high rates of mental disorders in refugees, but most
used self-report measures of psychiatric symptoms. In this study, we examined the …

Patient Health Questionnaire-9 scores do not accurately estimate depression prevalence: individual participant data meta-analysis

B Levis, A Benedetti, JPA Ioannidis, Y Sun… - Journal of clinical …, 2020‏ - Elsevier
Objectives Depression symptom questionnaires are not for diagnostic classification. Patient
Health Questionnaire-9 (PHQ-9) scores≥ 10 are nonetheless often used to estimate …

Handling of uncertainty in medical data using machine learning and probability theory techniques: A review of 30 years (1991–2020)

R Alizadehsani, M Roshanzamir, S Hussain… - Annals of Operations …, 2021‏ - Springer
Understanding the data and reaching accurate conclusions are of paramount importance in
the present era of big data. Machine learning and probability theory methods have been …