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Longitudinal records of anxiety and depression in general practice: the Second National Morbidity Survey

Published online by Cambridge University Press:  09 July 2009

Graham Dunn*
Affiliation:
General Practice Research Unit, Institute of Psychiatry, London
*
1Address for correspondence: Dr Graham Dunn, Biometrics Unit, Institute of Psychiatry, Dc Crespigny Park, Denmark Hill, London SE5 8AF.

Synopsis

This paper analyses patterns of episodes of anxiety and depression as recorded by 22 general practices which took part in the Second National Morbidity Survey (RCGP, 1980). The data comprise 6 years′ records. Simple Markov chains are fitted to each age-group of men and women, and the inter-practice variation in the resulting parameter estimates are compared, using Andrews′ plots and principal components plots. The implications for the presentation and interpretation of data from large-scale morbidity surveys are discussed.

Type
Preliminary Communication
Copyright
Copyright © Cambridge University Press 1983

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