Psychometric evaluation of the Hospital Anxiety and Depression Scale in a large community sample of adolescents in Hong Kong

Purpose: The Hospital Anxiety and Depression Scale (HADS) is widely used in adult populations; however, its usefulness with adolescents has been explored less. This study sought to evaluate the reliability, validity, and factor structure of the Chinese version of HADS in a community sample of adolescents residing in Hong Kong. Methods: A prospective cohort of 5,857 students recruited from 17 secondary schools completed the HADS. Internal consistency and concurrent validity were examined. Confirmatory factor analysis was applied to test the relative fits of six factor structures of the HADS. The best fitting model was further cross-validated by male, female, splithalf samples, and age subgroups. Results: The HADS possessed adequate internal consistency, especially for the anxiety subscale. Significant concurrent intercorrelations with self-reported suicidal thoughts and the Youth Self Report Anxious/Depressed subscale were discovered and found to be stronger for females. The cross-validation supported a two-factor model, where anxiety item 7, "I can sit at ease and feel relaxed", was placed in the depression subscale. Conclusions: The HADS showed satisfactory psychometric properties as a screening instrument in assessing anxious and depressive states as two correlated but distinct factors in adolescents. Study implications and recommendations for future research were discussed.published_or_final_versionSpringer Open Choice, 21 Feb 201

Psychological distress in cancer patients undergoing radiation therapy treatment

Purpose: The objective of this study was to examine the likely presence of, and factors associated with, anxiety, depression and overall psychological distress in cancer outpatients undergoing radiation therapy treatment in Sydney, Australia. Methods: A touchscreen computer survey was conducted in four radiation therapy treatment centre waiting rooms. Patients waiting to receive treatment completed the survey which included questions about demographic and disease characteristics, survey acceptability and the Hospital Anxiety and Depression Scale (HADS). Results: A total of 454 patients (70 %) completed the touchscreen computer survey. The likely presence of anxiety (HADS-A ≥11), depression (HADS-D ≥11) and overall psychological distress (HADS-T ≥15) was 15, 5.7 and 22 %, respectively. Cancer type was found to be associated with each HADS screening category. The majority of patients reported high survey acceptability and willingness to complete similar touchscreen computer surveys in the treatment centre waiting room on additional occasions. Conclusions: As radiotherapy patients frequently attend the radiation oncology department, routine screening and intervention for elevated levels of psychological distress in this setting appears to be feasible. High survey completion rates and high patient-rated acceptability support this approach to screening. The likely presence of psychological distress is reported for this sample; however, the selection of HADS threshold scores is likely to have influenced the reported rates. Further research is needed to identify how cancer type impacts on likely caseness across the different HADS classifications examined