Department of Economics and Business Economics

Validity of dementia diagnoses in the danish hospital registers

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Standard

Validity of dementia diagnoses in the danish hospital registers. / Phung, T.K.T.; Andersen, B.B.; Phung, T.K.T.; Høgh, P.; Kessing, Lars Vedel; Mortensen, Preben Bo; Waldemar, Gunhild.

In: Dementia and Geriatric Cognitive Disorders, Vol. 24, 2007, p. 220-228.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Harvard

Phung, TKT, Andersen, BB, Phung, TKT, Høgh, P, Kessing, LV, Mortensen, PB & Waldemar, G 2007, 'Validity of dementia diagnoses in the danish hospital registers', Dementia and Geriatric Cognitive Disorders, vol. 24, pp. 220-228.

APA

Phung, T. K. T., Andersen, B. B., Phung, T. K. T., Høgh, P., Kessing, L. V., Mortensen, P. B., & Waldemar, G. (2007). Validity of dementia diagnoses in the danish hospital registers. Dementia and Geriatric Cognitive Disorders, 24, 220-228.

CBE

Phung TKT, Andersen BB, Phung TKT, Høgh P, Kessing LV, Mortensen PB, Waldemar G. 2007. Validity of dementia diagnoses in the danish hospital registers. Dementia and Geriatric Cognitive Disorders. 24:220-228.

MLA

Phung, T.K.T. et al. "Validity of dementia diagnoses in the danish hospital registers". Dementia and Geriatric Cognitive Disorders. 2007, 24. 220-228.

Vancouver

Phung TKT, Andersen BB, Phung TKT, Høgh P, Kessing LV, Mortensen PB et al. Validity of dementia diagnoses in the danish hospital registers. Dementia and Geriatric Cognitive Disorders. 2007;24:220-228.

Author

Phung, T.K.T. ; Andersen, B.B. ; Phung, T.K.T. ; Høgh, P. ; Kessing, Lars Vedel ; Mortensen, Preben Bo ; Waldemar, Gunhild. / Validity of dementia diagnoses in the danish hospital registers. In: Dementia and Geriatric Cognitive Disorders. 2007 ; Vol. 24. pp. 220-228.

Bibtex

@article{a58d3950629411dcbee902004c4f4f50,
title = "Validity of dementia diagnoses in the danish hospital registers",
abstract = "Background:The validity of dementia diagnoses in the Danish nationwide hospital registers was evaluated to determine the value of these registers in epidemiological research about dementia. Methods: Two hundred patients were randomly selected from 4,682 patients registered for the first time with a dementia diagnosis in the last 6 months of 2003. The patients' medical journals were reviewed to evaluate if they fulfilled ICD-10 and/or DSM-IV criteria for dementia and specific dementia subtypes. The patients who were still alive in 2006 were invited to an interview. Results: One hundred and ninety-seven journals were available for review and 51 patients were interviewed. A registered diagnosis of dementia was found to be correct in 169 (85.8{\%}) cases. Regarding dementia subtypes, the degree of agreement between the registers and the results of the validating process was low with a kappa of 0.36 (95{\%} CI 0.24-0.48). Conclusion: The validity of dementia syndrome in the Danish hospital registers was high and allows for epidemiological studies about dementia. Alzheimer's disease, although underregistered, also had a good validity once the diagnosis was registered. In general, other ICD-10 dementia subtypes in the registers had a low validity and are less suitable for epidemiological research",
author = "T.K.T. Phung and B.B. Andersen and T.K.T. Phung and P. H{\o}gh and Kessing, {Lars Vedel} and Mortensen, {Preben Bo} and Gunhild Waldemar",
year = "2007",
language = "English",
volume = "24",
pages = "220--228",
journal = "Dementia and Geriatric Cognitive Disorders",
issn = "1420-8008",
publisher = "S. Karger AG",

}

RIS

TY - JOUR

T1 - Validity of dementia diagnoses in the danish hospital registers

AU - Phung, T.K.T.

AU - Andersen, B.B.

AU - Phung, T.K.T.

AU - Høgh, P.

AU - Kessing, Lars Vedel

AU - Mortensen, Preben Bo

AU - Waldemar, Gunhild

PY - 2007

Y1 - 2007

N2 - Background:The validity of dementia diagnoses in the Danish nationwide hospital registers was evaluated to determine the value of these registers in epidemiological research about dementia. Methods: Two hundred patients were randomly selected from 4,682 patients registered for the first time with a dementia diagnosis in the last 6 months of 2003. The patients' medical journals were reviewed to evaluate if they fulfilled ICD-10 and/or DSM-IV criteria for dementia and specific dementia subtypes. The patients who were still alive in 2006 were invited to an interview. Results: One hundred and ninety-seven journals were available for review and 51 patients were interviewed. A registered diagnosis of dementia was found to be correct in 169 (85.8%) cases. Regarding dementia subtypes, the degree of agreement between the registers and the results of the validating process was low with a kappa of 0.36 (95% CI 0.24-0.48). Conclusion: The validity of dementia syndrome in the Danish hospital registers was high and allows for epidemiological studies about dementia. Alzheimer's disease, although underregistered, also had a good validity once the diagnosis was registered. In general, other ICD-10 dementia subtypes in the registers had a low validity and are less suitable for epidemiological research

AB - Background:The validity of dementia diagnoses in the Danish nationwide hospital registers was evaluated to determine the value of these registers in epidemiological research about dementia. Methods: Two hundred patients were randomly selected from 4,682 patients registered for the first time with a dementia diagnosis in the last 6 months of 2003. The patients' medical journals were reviewed to evaluate if they fulfilled ICD-10 and/or DSM-IV criteria for dementia and specific dementia subtypes. The patients who were still alive in 2006 were invited to an interview. Results: One hundred and ninety-seven journals were available for review and 51 patients were interviewed. A registered diagnosis of dementia was found to be correct in 169 (85.8%) cases. Regarding dementia subtypes, the degree of agreement between the registers and the results of the validating process was low with a kappa of 0.36 (95% CI 0.24-0.48). Conclusion: The validity of dementia syndrome in the Danish hospital registers was high and allows for epidemiological studies about dementia. Alzheimer's disease, although underregistered, also had a good validity once the diagnosis was registered. In general, other ICD-10 dementia subtypes in the registers had a low validity and are less suitable for epidemiological research

M3 - Journal article

VL - 24

SP - 220

EP - 228

JO - Dementia and Geriatric Cognitive Disorders

JF - Dementia and Geriatric Cognitive Disorders

SN - 1420-8008

ER -