scholarly journals Reliability and Validity of the Geriatric Depression Scale in Italian Subjects with Parkinson’s Disease

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Perla Massai ◽  
Francesca Colalelli ◽  
Julita Sansoni ◽  
Donatella Valente ◽  
Marco Tofani ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Internal Consistency ◽  
Discriminant Validity ◽  
Geriatric Depression Scale ◽  
Depression Scale ◽  
Reliability And Validity ◽  
Geriatric Depression ◽  
Retest Reliability ◽  
Test Retest Reliability

Introduction. The Geriatric Depression Scale (GDS) is commonly used to assess depressive symptoms, but its psychometric properties have never been examined in Italian people with Parkinson’s disease (PD). The aim of this study was to study the reliability and validity of the Italian version of the GDS in a sample of PD patients. Methods. The GDS was administered to 74 patients with PD in order to study its internal consistency, test-retest reliability, construct, and discriminant validity. Results. The internal consistency of GDS was excellent (α = 0.903), as well as the test-retest reliability (ICC = 0.941 [95% CI: 0.886–0.970]). GDS showed a strong correlation with instruments related to the depression (ρ = 0.880) in PD (ρ = 0.712) and a weak correlation with generic measurement instruments (−0.320 < ρ <−0.217). An area under the curve of 0.892 (95% CI 0.809–0.975) indicated a moderate capability to discriminate depressed patients to nondepressed patient, with a cutoff value between 15 and 16 points that predicts depression (sensitivity = 87%; specificity = 82%). Conclusion. The GDS is a reliable and valid tool in a sample of Italian PD subjects; this scale can be used in clinical and research contexts.

scholarly journals Validity and Reliability of the Persian Version of Parkinson’s Disease Sleep Scale-2

2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
Mohammad Taghi Joghataei ◽  
Seyed-Mohammad Fereshtehnejad ◽  
Maryam Mehdizadeh ◽  
Sepideh Goudarzi ◽  
Sayed Amir Hasan Habibi ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Internal Consistency ◽  
Convergent Validity ◽  
Intraclass Correlation ◽  
Depression Scale ◽  
Validity And Reliability ◽  
Retest Reliability ◽  
Persian Version ◽  
Test Retest Reliability

Objective. Sleep problems are nonmotor symptoms in Parkinson’s disease that should be carefully evaluated for better management and treatment. Parkinson’s Disease Sleep Scale (PDSS-2) is one of the most reliable tools for measuring sleep difficulties in people with Parkinson’s disease. This study investigated the psychometric properties of the Persian version of PDSS-2. Methods. Four hundred and fifty-six people with Parkinson’s disease with a mean age ±standard deviation of 60.7 ± 11.3 years were engaged in this study. Acceptability was assessed by floor and ceiling effects. Dimensionality was measured by exploratory factor analysis. The convergent validity of PDSS-2 with the Hospital Anxiety and Depression Scale (HADS) was assessed. Internal consistency and test-retest reliability were assessed with Cronbach’s alpha and intraclass correlation coefficient (ICC), respectively. Results. No noticeable ceiling and floor effect was detected. The dimensionality analysis showed three factors. A high correlation was obtained between PDSS-2 and HADS (anxiety subscale). Excellent internal consistency with α = 0.94, and good test-retest reliability with ICC = 0.89 were obtained. Conclusion. This study showed that the Persian version of Parkinson’s Disease Sleep Scale has acceptable validity and reliability for measuring sleep disturbances in people with Parkinson’s disease.

Reliability, Validity, and Factor Structure of the Geriatric Depression Scale in Turkish Elderly: Are There Different Factor Structures for Different Cultures?

2000 ◽  
Vol 12 (2) ◽  
pp. 163-172 ◽  
Author(s):  
Turan Ertan ◽  
Engin Eker
Keyword(s):  
Factor Structure ◽  
Internal Consistency ◽  
Discriminant Validity ◽  
Geriatric Depression Scale ◽  
Depression Scale ◽  
Principal Component ◽  
Community Dwelling ◽  
Geriatric Depression ◽  
Reasonable Time ◽  
Positive Form

The purpose of this study was to examine the Geriatric Depression Scale (GDS) translated into Turkish for its reliability, discriminant validity, and factor structure in a sample of 276 community-dwelling elderly and 30 patients with major depression. One item (Item 5) was discovered to have conceptual difficulty for Turkish elderly and was transformed to negative form. Item 2 was transformed to positive form to keep the number of positive and negative items equal to that in the original GDS. A reasonable time stability with 1-week interval (r:.74) and a high level of internal consistency (α = .91) were observed. Student's t test resulted in a significant discriminant validity for the scale total score. Factor study with principal component analysis and varimax rotation gave rise to a structure with seven factors. Results of the same analysis with two factors were found to be easier to interpret. The first factor was composed of 19 items reflecting “depressive affect and thought content.” The other 11 items representing “decrease in motivation and cognitive functions” loaded in the second factor. In conclusion, the Turkish GDS was found to have reasonable time reliability, high internal consistency, and discriminant validity for Turkish elderly. Its two-factor structure can be used as an informative instrument for epidemiological studies, reflecting two main dimensions of depression in the elderly.

scholarly journals A Psychometric Properties Evaluation of the Italian Version of the Geriatric Depression Scale

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Giovanni Galeoto ◽  
Julita Sansoni ◽  
Michela Scuccimarri ◽  
Valentina Bruni ◽  
Rita De Santis ◽  
...  
Keyword(s):  
Psychometric Properties ◽  
Concurrent Validity ◽  
Geriatric Depression Scale ◽  
Depression Scale ◽  
Depression Symptoms ◽  
Italian Population ◽  
Geriatric Depression ◽  
Italian Version ◽  
Retest Reliability ◽  
Test Retest Reliability

Objective. The Geriatric Depression Scale (GDS) is an evaluation tool to diagnose older adult’s depression. This questionnaire was defined by Yesavage and Brink in 1982; it was designed expressly for the older person and defines his/her degree of satisfaction, quality of life, and feelings. The objective of this study is to evaluate the psychometric properties of the Italian translation of the Geriatric Depression Scale (GDS-IT). Methods. The Italian version of the Geriatric Depression Scale was administered to 119 people (79 people with a depression diagnosis and 40 healthy ones). We examined the following psychometric characteristics: internal consistency reliability, test-retest reliability, concurrent validity, and construct validity (factor structure). Results. Cronbach’s Alpha for the GDS-IT administered to the depressed sample was 0.84. Test-retest reliability was 0.91 and the concurrent validity was 0.83. The factorial analysis showed a structure of 5 factors, and the scale cut-off is between 10 and 11. Conclusion. The GDS-IT proved to be a reliable and valid questionnaire for the evaluation of depression in an Italian population. In the present study, the GDS-IT showed good psychometric properties. Health professionals now have an assessment tool for the evaluation of depression symptoms in the Italian population.

scholarly journals Effect of age on geriatric depression scale performance in Parkinson's disease

2007 ◽  
Vol 22 (9) ◽  
pp. 1331-1335 ◽  
Author(s):  
Daniel Weintraub ◽  
Kirsten Saboe ◽  
Matthew B. Stern
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Geriatric Depression Scale ◽  
Depression Scale ◽  
Geriatric Depression ◽  
Effect Of Age

Depressive symptoms in Parkinson’s disease are related to decreased left hippocampal volume: correlation with the 15-item shortened version of the Geriatric Depression Scale

2017 ◽  
Vol 59 (3) ◽  
pp. 341-345 ◽  
Author(s):  
Masami Goto ◽  
Koji Kamagata ◽  
Taku Hatano ◽  
Nobutaka Hattori ◽  
Osamu Abe ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Gray Matter ◽  
Gray Matter Volume ◽  
Geriatric Depression Scale ◽  
Depression Scale ◽  
Hippocampal Volume ◽  
Geriatric Depression ◽  
Matter Volume ◽  
The Relationship

Background The relationship between hippocampal and amygdaloid volumes and depression in patients with Parkinson’s disease (PD) is a controversial issue. Purpose To investigate the correlation between the 15-item shortened version of the Geriatric Depression Scale (GDS-15) and gray matter volume in PD. Material and Methods In the present study, 46 participants with PD were scanned with 3 T magnetic resonance imaging (MRI) to obtain three-dimensional (3D) T1-weighted (T1W) images. Neurologists specializing in movement disorders performed clinical evaluations of the participants (e.g. GDS-15, Mini-Mental State Examination, PD duration, age, sex). Statistical Parametric Mapping 8 software was used for image gray matter segmentation and for a correlation analysis between gray matter volume and GDS-15 score. Results The results showed a significant negative correlation between GDS-15 score and left hippocampal volume, and between GDS-15 score and right parahippocampal gyrus volume. No significant positive correlations were found in the whole brain. Conclusion The current results provide new evidence regarding the relationship between depression in PD and hippocampal volume.

scholarly journals The accuracy of diagnosis of major depression in patients with Parkinson's disease: a comparative study among the UPDRS, the geriatric depression scale and the Beck depression inventory

2008 ◽  
Vol 66 (2a) ◽  
pp. 152-156 ◽  
Author(s):  
Vitor Tumas ◽  
Guilherme Gustavo Ricioppo Rodrigues ◽  
Tarsis Leonardo Almeida Farias ◽  
José Alexandre S. Crippa
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Major Depression ◽  
Beck Depression Inventory ◽  
Geriatric Depression Scale ◽  
Depression Scale ◽  
Diagnostic Value ◽  
Geriatric Depression ◽  
Operating Characteristics ◽  
Highly Correlated

OBJECTIVE: Evaluate the accuracy of diagnosis of major depression in patients with Parkinson's disease (PD) using the UPDRS, the 15-item Geriatric Depression Scale (GDS15) and the Beck Depression Inventory (BDI). METHOD: 50 consecutive patients with PD were evaluated. The diagnosis of major depression was made according to the DSM-IV criteria. RESULTS: We found a 24% prevalence of major depression. All depression scales were highly correlated but UPDRS depression item had the lowest diagnostic value. The GDS15 had the more appropriate "receiver operating characteristics" curve. The best cut-off scores for screening depression were 17/18 for BDI and 8/9 for GDS15. We did not find any correlation between the level of depression and intensity of motor symptoms, functional capacity and duration of the disease. CONCLUSION: GDS15 is better than the BDI and the UPDRS for screening depression in PD and depression is not related to the degree of parkinsonian symptoms.

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