A full psychometric analysis of the PHQ-ADS in a larger sample of dialysis patients is warranted.Īnxiety Bifactor Confirmatory factor analysis Depression Dialysis Distress: PHQ-ADS GAD-7 PHQ-9.Ĭopyright © 2017 Elsevier Inc. The PHQ-ADS appears to have good structural validity in haemodialysis patients and is sufficiently unidimensional to warrant the use of a total distress score. There was a significant association between distress and negative illness perceptions (r=0.58, p<0.01). Distress scores were significantly higher in females compare with males. The general distress factor accounted for approximately 84% of the explained variance (omega-h=0.90). Construct validity was determined against the Brief Illness Perception Questionnaire.Ī bi-factor PHQ-ADS model had good fit to the data (chi-square=96.1, p=0.26, CFI=0.99 TLI=0.99 RMSEA=0.02). We offer a genuine, reliable and stable service. Omega-hierarchical was calculated to indicate the level of saturation of a multidimensional scale by a general factor. Internet Protocol television (IPTV) is the delivery of television content over Internet Protocol (IP) networks. Respective items of the PHQ-9 and GAD-7 were specified as subgroup factors. In the bi-factor model all items from the PHQ-9 and GAD-7 (16-items in total) were loaded onto a general distress factor. We translated PHQ-9 to Malayalam, a language spoken by 30 million people in Kerala, India. In 2nd International Conference on Health and Health Psychology Reliability. Structural validity of the PHQ-ADS was evaluated using confirmatory factor analysis (CFA), assessing alternative models including a bi-factor model. We aimed to estimate the reliability and validity of PHQ-9, when administered by health workers, a cadre of public health staff, posted in primary health centres. Reliability and validity of the PHQ-9 in Portuguese women with breast cancer.
Screening data (n=182) used to select entry into a feasibility study of an online cognitive-behavioural therapy intervention for distress in dialysis patients were analysed here. To validate the factor structure of the Patient Health Questionnaire Anxiety and Depression Scale (PHQ-ADS)- which is a composite measure of depression and anxiety using the Patient Health Questionnaire-9 and Generalised Anxiety Disorder Scale (GAD-7), in a sample of haemodialysis patients.