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The pattern of depressive symptoms and factor analysis of the Cornell Scale among patients in Norwegian nursing homes.
Int J Geriatr Psychiatry. 2008 Oct; 23(10):1058-65.IJ

Abstract

BACKGROUND

Depression is more prevalent in subjects with dementia than in those without it. Due to both psychological and biological risk factors it is suggested that a bimodal distribution of depressive symptoms exists with higher prevalence rates being found among patients suffering both with mild and with severe dementia.

AIM

To confirm or reject the hypothesis of a bimodal distribution of depressive symptoms.

METHODS

A sample of 1,159 randomly selected nursing home patients was assessed using the Cornell Scale, the Clinical Dementia Rating Scale (CDR) and Lawton's Scale of the activities of daily living. Additionally, information was collected from the patients' records. A factor analysis of the Cornell Scale was performed.

RESULTS

The use of antidepressants and demographic characteristics, except for gender distribution, did not differ across CDR groups. Patients with dementia had more symptoms such as anxiety, irritability, agitation, retardation, loss of interest, lack of joy and delusion than those without dementia. No symptom was more frequent among non-demented subjects. The factor analysis resulted in a five factors solution: 'mood', 'cyclic', 'physical', 'retardation' and 'behavioural' factor. The score on the mood subscale did not differ across CDR groups (p = 0.326), whereas the scores on the four other subscales increased with increasing CDR scores (p < 0.001).

CONCLUSION

We did not find a bimodal distribution of depressive symptoms. The explanation for the occurrence of the typical core symptoms of depression, the mood symptoms, is probably complex. The non-mood symptoms are probably strongly influenced by biological factors.

Authors+Show Affiliations

Norwegian Centre for Dementia Research, Centre for Ageing and Health, Department of Geriatric Medicine, Ullevaal University Hospital and Faculty of Medicine, University of Oslo, Norway. maria.barca@aldringoghelse.noNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18457344

Citation

Barca, Maria Lage, et al. "The Pattern of Depressive Symptoms and Factor Analysis of the Cornell Scale Among Patients in Norwegian Nursing Homes." International Journal of Geriatric Psychiatry, vol. 23, no. 10, 2008, pp. 1058-65.
Barca ML, Selbaek G, Laks J, et al. The pattern of depressive symptoms and factor analysis of the Cornell Scale among patients in Norwegian nursing homes. Int J Geriatr Psychiatry. 2008;23(10):1058-65.
Barca, M. L., Selbaek, G., Laks, J., & Engedal, K. (2008). The pattern of depressive symptoms and factor analysis of the Cornell Scale among patients in Norwegian nursing homes. International Journal of Geriatric Psychiatry, 23(10), 1058-65. https://doi.org/10.1002/gps.2033
Barca ML, et al. The Pattern of Depressive Symptoms and Factor Analysis of the Cornell Scale Among Patients in Norwegian Nursing Homes. Int J Geriatr Psychiatry. 2008;23(10):1058-65. PubMed PMID: 18457344.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The pattern of depressive symptoms and factor analysis of the Cornell Scale among patients in Norwegian nursing homes. AU - Barca,Maria Lage, AU - Selbaek,Geir, AU - Laks,Jerson, AU - Engedal,Knut, PY - 2008/5/7/pubmed PY - 2009/5/5/medline PY - 2008/5/7/entrez SP - 1058 EP - 65 JF - International journal of geriatric psychiatry JO - Int J Geriatr Psychiatry VL - 23 IS - 10 N2 - BACKGROUND: Depression is more prevalent in subjects with dementia than in those without it. Due to both psychological and biological risk factors it is suggested that a bimodal distribution of depressive symptoms exists with higher prevalence rates being found among patients suffering both with mild and with severe dementia. AIM: To confirm or reject the hypothesis of a bimodal distribution of depressive symptoms. METHODS: A sample of 1,159 randomly selected nursing home patients was assessed using the Cornell Scale, the Clinical Dementia Rating Scale (CDR) and Lawton's Scale of the activities of daily living. Additionally, information was collected from the patients' records. A factor analysis of the Cornell Scale was performed. RESULTS: The use of antidepressants and demographic characteristics, except for gender distribution, did not differ across CDR groups. Patients with dementia had more symptoms such as anxiety, irritability, agitation, retardation, loss of interest, lack of joy and delusion than those without dementia. No symptom was more frequent among non-demented subjects. The factor analysis resulted in a five factors solution: 'mood', 'cyclic', 'physical', 'retardation' and 'behavioural' factor. The score on the mood subscale did not differ across CDR groups (p = 0.326), whereas the scores on the four other subscales increased with increasing CDR scores (p < 0.001). CONCLUSION: We did not find a bimodal distribution of depressive symptoms. The explanation for the occurrence of the typical core symptoms of depression, the mood symptoms, is probably complex. The non-mood symptoms are probably strongly influenced by biological factors. SN - 1099-1166 UR - https://www.unboundmedicine.com/medline/citation/18457344/The_pattern_of_depressive_symptoms_and_factor_analysis_of_the_Cornell_Scale_among_patients_in_Norwegian_nursing_homes_ L2 - https://doi.org/10.1002/gps.2033 DB - PRIME DP - Unbound Medicine ER -