The validity of questionnaire measures for assessing depression after stroke.

OBJECTIVE: Depression has been reported to occur frequently after stroke. The aim of the study was to assess the validity of questionnaire measures for screening for depression after stroke. DESIGN: Cross-sectional correlational study between questionnaire measures of mood and psychiatric interview. SETTING: Hospital and community. PARTICIPANTS: Stroke patients were recruited from hospital wards and from a randomized controlled trial of cognitive behavioural therapy. MAIN MEASURES: Beck Depression Inventory, Wakefield Depression Inventory, General Health Questionnaire 28 and Schedules for Clinical Assessment in Neuropsychiatry. RESULTS: Poor agreement was found between psychiatric diagnosis and questionnaire measures of mood. The sensitivity of the questionnaire measures was high, but specificity was low. No cut-off points with satisfactory sensitivity and specificity could be identified from ROC curves. CONCLUSIONS: Although questionnaire assessments of depression provide a satisfactory screening method, specificity values are too low to provide a basis for the diagnosis of depression. Measures need to be developed with higher specificity to facilitate screening for depression after stroke.

The reliability and validity of the Nottingham Extended Activities of Daily Living Scale in patients with multiple sclerosis.

OBJECTIVE: To investigate whether the Nottingham Extended Activities of Daily Living Scale (EADL) is reliable and valid for the assessment of disability in patients with multiple sclerosis (MS). DESIGN: Questionnaire measures were administered on two occasions four months apart. SUBJECTS: A total of 240 patients recruited through a randomized controlled trial of cognitive assessment and treatment in MS. MEASURES: The Nottingham EADL, Guys Neurological Disability Scale (GNDS) and SF-36 quality of life scale. RESULTS: The EADL items did not form a Guttman Scale (CR 0.8, CS 0.3). The EADL and its four subscales all had high internal consistency (alpha 0.72-0.94). Test-retest reliability was satisfactory (r(s) 0.81-0.90) with a mean difference in scores on the two occasions of 0.29. Factor analysis generally supported the subscale structure. There were significant but weak correlations with quality of life measures. CONCLUSIONS: The EADL shows promise for the assessment of disability in MS, but the range of items needs to be extended. Further evaluation of the scale seems warranted.

Assessing quality of life in people with multiple sclerosis.

PURPOSE: The quality of life of multiple sclerosis (MS) patients was assessed using two MS specific quality of life measures (FAMS and SF-54) and a short generic measure (EuroQol) in order to make recommendations for routine assessment. Factors contributing to quality of life within this population were also considered. METHOD: Questionnaires were either sent by post or completed at interview. Ninety-six MS patients known to a consultant in rehabilitation medicine completed the questionnaires. RESULTS: Patients scored very low on subscales related to physical health. Correlations were high between the FAMS and SF-54 but low with the EuroQoL. Stepwise multiple linear regressions showed mood measures to account for the most variance on all quality of life composite scores. The MS patients within the study had much lower SF-36 quality of life scores than the general population and other illness groups. CONCLUSIONS: The EuroQol did not measure the same aspects of quality of life as the FAMS and SF-54 and was not found to be a sensitive measure within this sample. The SF-54 suffered from floor effects on physical health subscales and therefore the FAMS was recommended.

Assessment of emotional problems in people with multiple sclerosis.

OBJECTIVE: To investigate the occurrence of emotional problems in multiple sclerosis (MS) patients. The utility of rating scales used to measure such problems was studied to make recommendations for clinical practice. DESIGN: Questionnaires were both sent by post and completed with an assistant psychologist at a home visit. SUBJECTS: Ninety-six MS patients in contact with a rehabilitation consultant. MEASURES: Patients were assessed using the Guy's Neurological Disability Scale (GNDS), Extended Activities of Daily Living Scale (EADL), Hospital Anxiety and Depression Scale (HAD), Beck Anxiety and Depression Scales (BAI, BDI), Clinical Outcomes in Routine Evaluation Measure (CORE) and the Brief Symptom Inventory (BSI). RESULTS: Rates of anxiety and depression ranged from 16% to 48% according to the measures used. All mood scales were highly significantly correlated with each other. Disability as measured by the GNDS, but not the EADL, was significantly correlated with all mood measures. Kappa values showed poor correspondence in the classification of cases. Receiver operating characteristic curves indicated an optimum cut-off point of 7/8 on the HAD and 2/3 on the General Health Questionnaire (GHQ-12). CONCLUSIONS: Rates of emotional problems were low given the highly disabled population studied. The HAD was relatively insensitive in comparison with the BAI and BDI. The GHQ-12 was sensitive and therefore recommended as a short screening measure. An alternative short screen, 'Emotional GNDS', was proposed.