Hospital admission rates and diagnosis

J. A. Harrison

Manchester Mental Health and Social Care Trust, Chorlton House, 70 Manchester Road, Manchester M21 9UN, UK.

F. Creed

University of Manchester, UK.

Correspondence: E-mail: Judith.Harrison{at}mhsc.manchester.nhs.uk

EDITED BY KIRIAKOS XENITIDIS and COLIN CAMPBELL

We read with interest the article by Thompson et al (2004) on changing patterns of hospital admission for adult psychiatric illness. Although they acknowledged the limitations of routinely collected admissions data, the authors reported a lower than anticipated proportion of all admissions in the schizophrenia and related psychoses categories and greater than anticipated proportions for depression and anxiety and substance misuse. A further analysis of admissions for substance misuse suggested that this did not include a large number of patients with dual diagnosis and that psychotic disorder secondary to alcohol or drug misuse accounted for around 10% of admissions for substance misuse.

On a variety of indices, Manchester has the highest level of need for mental health services in England (Glover et al, 1999). Using a similar methodology, we have analysed the 2003/4 admissions data for Manchester and found marked differences from the patterns reported by Thompson et al: 42% of admissions in Manchester were for schizophrenia and related psychoses (national average 26%), with only 18% for depression or anxiety (national average 29.6%) and 6.5% for substance misuse (national average 19.1%). Further examination of the admissions for substance misuse in Manchester showed that 57% were for psychoses secondary to alcohol or drug misuse.

Our own earlier analyses of admissions in the north west of England (Harrison et al, 1995) also found marked variation according to diagnostic group and suggested that health districts with higher levels of deprivation admitted a higher proportion of patients with psychotic diagnoses and fewer patients with anxiety and depression. Similarly, the King’s Fund report into London’s mental health (King’s Fund, 1997) argued that a high proportion of admissions for schizophrenia reflected increased need for services. This could explain some of the regional variation in admissions according to diagnostic group reported by Thompson et al and our own recent findings. Admissions for substance misuse may also be influenced by deprivation and availability of in-patient beds, with some areas only admitting patients with secondary psychoses rather than drug or alcohol dependence.

The continued variation in the use of inpatient facilities across England requires further attention, particularly as it suggests that current means of resource allocation do not adequately address the marked impact of deprivation on need for mental health services.

REFERENCES

Glover, G. R., Leese, M. & McCrone, P. (1999) More severe mental illness is more concentrated in deprived areas. British Journal of Psychiatry, 175, 544 –548.[Abstract]

Harrison, J., Barrow, S. & Creed, F. (1995) Social deprivation and psychiatric admission rates among different diagnostic groups. British Journal of Psychiatry, 167, 456 –462.[Abstract]

King’s Fund (1997) edited by Sonia Johnson. London’s Mental Health. The Report of the King’s Fund London Commission. London: King’s Fund.

Thompson, A., Shaw, M., Harrison, G., et al (2004) Problems of hospital admission for adult psychiatric illness in England: analysis of Hospital Episode Statistics data. British Journal of Psychiatry, 185, 334 –341.[Abstract/Free Full Text]





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