The Calgary Depression Rating Scale for schizophrenia in a healthy control group: Psychometric properties and reference values

Müller, Matthias J.; Brening, Helena; Gensch, Christoph; Klinga, Jochen; Kienzle, Barbara; Müller, Kay-Maria

doi:10.1016/j.jad.2005.04.005

Cited by 30 publications

(22 citation statements)

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“…The same factorial stability was found by Addington et al [14], who examined acutely relapsed schizophrenia patients with a 3-month follow-up assessment time point implying a time point of relative remission similar to the present study. These properties of the scale with high internal consistency are furthermore underlined by results of the psychometric properties of the scale in a healthy control group reporting reference values for clinical use [27]. …”

Section: Discussionmentioning

confidence: 99%

Evaluating Depressive Symptoms in Schizophrenia: A Psychometric Comparison of the Calgary Depression Scale for Schizophrenia and the Hamilton Depression Rating Scale

et al. 2012

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Background: The aim of this study was to compare two measures of depression in patients with schizophrenia and schizophrenia spectrum disorder, including patients with delusional and schizoaffective disorder, to conclude implications for their application. Sampling and Methods: A total of 278 patients were assessed using the Calgary Depression Scale for Schizophrenia (CDSS) and the Hamilton Depression Rating Scale (HAMD-17). The Positive and Negative Syndrome Scale (PANSS) was also applied. At admission and discharge, a principal component analysis was performed with each depression scale. The two depression rating scales were furthermore compared using correlation and regression analyses. Results: Three factors were revealed for the CDSS and HAMD-17 factor component analysis. A very similar item loading was found for the CDSS at admission and discharge, whereas results of the loadings of the HAMD-17 items were less stable. The first two factors of the CDSS revealed correlations with positive, negative and general psychopathology. In contrast, multiple significant correlations were found for the HAMD-17 factors and the PANSS subscores. Multiple regression analyses demonstrated that the HAMD-17 accounted more for the positive and negative symptom domains than the CDSS. Conclusions: The present results suggest that compared to the HAMD-17, the CDSS is a more specific instrument to measure depressive symptoms in schizophrenia and schizophrenia spectrum disorder, especially in acutely ill patients.

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Section: Discussionmentioning

confidence: 99%

Evaluating Depressive Symptoms in Schizophrenia: A Psychometric Comparison of the Calgary Depression Scale for Schizophrenia and the Hamilton Depression Rating Scale

et al. 2012

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“…This scale was chosen because it differentiates depressive symptoms from other symptoms of schizophrenia, and is also valid for use in populations without schizophrenia (Muller et al, 2005). The CDSS is a nine-item scale, administered via a semi-structured interview.…”

Section: Depressionmentioning

confidence: 99%

Future‐directed thinking in first‐episode psychosis

Goodby

MacLeod

2015

British J Clinic Psychol

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ObjectivesThis study employed the Future Thinking Task (MacLeod et al., 2005, Br. J. Clin. Psychol., 44, 495) to investigate whether future‐directed thinking in first‐episode psychosis is significantly different from that of matched controls, and to identify its correlates in this patient group.DesignCross‐sectional, mixed‐model, case–control design.MethodParticipants were 30 patients with first‐episode psychosis and 27 matched controls. The Future Thinking Task was used to assess future‐directed thinking in both groups. Anxiety and depression were also measured as well as self‐report measures of hopelessness, suicide ideation and a measure of negative symptoms.ResultsIndividuals with psychosis were impaired in future‐directed thinking in both positive and negative domains, particularly with respect to the coming year. Increased self‐reported hopelessness was associated with reduced positive future thinking and increased negative future thinking. Increased positive future thinking was also associated with reduced severity of negative symptoms, whilst negative future thinking was associated with suicide ideation.ConclusionsIndividuals with first‐episode psychosis show a reduction in positive future thinking in line with that seen in other clinical groups, but this is accompanied by an unexpected reduction in negative future thinking. The findings suggest a general disengagement with the future in this group that may affect recovery and functioning.Practitioner points Individuals with first‐episode psychosis may benefit from interventions to help them engage with their future, in particular in the mid‐range, up to 1 year. The Future Thinking Task may be a helpful addition to the assessment of suicide risk in those with first‐episode psychosis. Decreased positive future thinking was associated with increased severity of negative symptoms, indicating a potential new treatment angle for this resistant aspect of psychosis. The cross‐sectional design of this study does not allow for conclusions about the causal relationship between psychosis and future‐directed thinking. This study investigated future‐directed thinking in individuals with a range of psychotic illnesses employing a trans‐diagnostic approach; therefore, conclusions cannot be drawn about the nature of future‐directed thinking in individual psychotic disorders.

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“…In addition, the average severity of patients' CDRS scores was 6.7 +/− 3.2. We realize that some individuals may have had scores consistent with levels observable in individuals with major depression (8). However, individuals were excluded if they had ≥ 5 DSM IV symptoms of major depression (including either depressed mood or anhedonia) present most of the time for at least the past 2 weeks.…”

Section: Discussionmentioning

confidence: 91%

Does Age Moderate the Relationship Between Depressive Symptoms and Suicidal Ideation in Middle-Aged and Older Patients with Schizophrenia and Subthreshold Depression?

Kasckow

Golshan

Zisook

2014

The American Journal of Geriatric Psychiatry

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Background Suicidal deaths in middle aged and older individuals with schizophrenia is a public health concern. Depression and schizophrenia are major risk factors for suicide. However, it is unknown whether age moderates the relationship between depression and suicidal ideation in patients with schizophrenia and subthreshold depression. Methods In outpatients > 39 years old with schizophrenia and subthreshold depression (n = 213), suicidal ideation was assessed with the Intersept Scale for Suicidal Ideation and CGI- Suicide Severity scale. Using linear regression, we examined whether depression (based on Calgary Depression Rating Scale scores), age and ‘age by depressive symptoms’ predicted suicidal ideation. Results Depressive symptoms predicted suicidal ideation. Neither age nor ‘depressive symptoms by age’ predicted suicidal ideation. Conclusions In this population, age does not appear to moderate the relationship between depressive symptoms and suicidal behavior. Thus, assessing depressive symptoms as a risk factor is important at all ages in this population.

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The Calgary Depression Rating Scale for schizophrenia in a healthy control group: Psychometric properties and reference values

Cited by 30 publications

References 22 publications

Evaluating Depressive Symptoms in Schizophrenia: A Psychometric Comparison of the Calgary Depression Scale for Schizophrenia and the Hamilton Depression Rating Scale

Evaluating Depressive Symptoms in Schizophrenia: A Psychometric Comparison of the Calgary Depression Scale for Schizophrenia and the Hamilton Depression Rating Scale

Future‐directed thinking in first‐episode psychosis

Does Age Moderate the Relationship Between Depressive Symptoms and Suicidal Ideation in Middle-Aged and Older Patients with Schizophrenia and Subthreshold Depression?

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