Misclassification and the use of register-based indicators for depression

To study the degree to which depression indicators based on register data on hospital and antidepressant treatment suffer from differential misclassification with respect to gender, age and social group. Data on 7378 persons were obtained by linking a cross-sectional survey of Danish adults aged 40...

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Bibliographic Details
Published in:Acta Psychiatrica Scandinavica
Main Authors: Thielen, K., Nygaard, E., Andersen, I., Rugulies, R., Heinesen, E., Bech, P., Diderichsen, F., Bultmann, U.
Format: Article in Journal/Newspaper
Language:English
Published: 2009
Subjects:
outcome measurement error
depression
antidepressive agents
population registries
MAJOR DEPRESSION
ANTIDEPRESSANT MEDICATION
RELATIVE RISK
POPULATION
VALIDITY
STRESS
PREVALENCE
DISORDERS
INVENTORY
INEQUALITIES
Greenland
Online Access:https://hdl.handle.net/11370/2c6605f4-defe-4e55-b880-fdd3b9055b16
https://research.rug.nl/en/publications/2c6605f4-defe-4e55-b880-fdd3b9055b16
https://doi.org/10.1111/j.1600-0447.2008.01282.x
https://pure.rug.nl/ws/files/6729983/Thielen_2009_Acta_Psychiatr_Scand.pdf
Description
Summary:To study the degree to which depression indicators based on register data on hospital and antidepressant treatment suffer from differential misclassification with respect to gender, age and social group. Data on 7378 persons were obtained by linking a cross-sectional survey of Danish adults aged 40 and 50 years with population-based registers. Misclassification was analysed by comparing survey data to register data on major depression using the method proposed by Rothman and Greenland. Differential misclassification was found. Adjustment for misclassification reduced women's odds ratios from 2.18 to 1.00 for hospital treatment and from 1.70 to 1.10 for antidepressants. For the lower social group, the corresponding odds ratios increased from 1.18 to 3.52, and from 1.35 to 2.32 respectively, whereas odds ratios with respect to age remained almost unchanged. Differential misclassification should be considered when register-based information about hospital and antidepressant treatment are used as depression indicators.

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