BACKGROUND The PHQ-4 is a widely used open access screening instrument for depression and anxiety in different health care and community settings; however, empirical evidence of its psychometric quality in Colombia is lacking. The objectives of the current study were to generate normative data and to further investigate the construct validity and factorial structure of the PHQ-4 in the general ...

BACKGROUND This study aimed to investigate the reliability and validity of the Chinese version of the Patient Health Questionnaire (PHQ-15) in a tertiary hospital. METHODS Using a cross-sectional study design, the Chinese version of the PHQ-15 was administered to a total of 1329 inpatients. To examine the discriminant validity of this questionnaire, we investigated the correlation of the PHQ-...

BACKGROUND Accurate reporting of patient symptoms is critical for diagnosis and therapeutic monitoring in psychiatry. Smartphones offer an accessible, low-cost means to collect patient symptoms in real time and aid in care. OBJECTIVE To investigate adherence among psychiatric outpatients diagnosed with major depressive disorder in utilizing their personal smartphones to run a custom app to mo...

BACKGROUND The eight-item Patient Health Questionnaire depression scale (PHQ-8) is established as a valid diagnostic and severity measure for depressive disorders in large clinical studies. Our objectives were to assess the PHQ-8 as a depression measure in a large, epidemiological population-based study, and to determine the comparability of depression as defined by the PHQ-8 diagnostic algorit...

OBJECTIVES The detection of patients with comorbid mental disorders is of high clinical importance. Screening instruments can be recommended for early recognition. This study investigates the discriminant validity of the Hospital Anxiety and Depression Scale (HADS), General Health Questionnaire (GHQ-12) and Patient Health Questionnaire (Brief-PHQ-D) in chronically ill patients. METHODS Two hu...

Lack of physical activity is associated with the causes of illness, death and incapacitation. To determine the level of physical activity and the presence of depression, and level of correlation between physical activity and the appearance of depression in patients. In clinic family medicine, with pilot study, in the first half of 2010 years, through the Interview with 141 patients, completed t...

OBJECTIVES To evaluate the validity and reliability of the modified Patient Health Questionnaire(PHQ) 12 item instrument as a screening tool for assessing depression compared to the PHQ-9 in a representative south Indian urban population. METHODS The Chennai Urban Rural Epidemiology Study [CURES] is a large cross-sectional study conducted in Chennai, South India. In Phase 1 of CURES(urban com...

BACKGROUND Mobile and automated technologies are increasingly becoming integrated into mental health care and assessment. The purpose of this study was to determine how automated daily mood ratings are related to the Patient Health Questionnaire-9 (PHQ-9), a standard measure in the screening and tracking of depressive symptoms. RESULTS There was a significant relationship between daily mood s...