OJEpi  Vol.2 No.2 , May 2012
The psychiatric profile of the U.S. patient population across age groups
Abstract: Introduction: As the U.S. population undergoes continuous shifts the population’s health profile changes dynamically resulting in more or less expression of certain psychiatric disorders and utilization of health-care resources. In this paper, we analyze national data on the psychiatric morbidity of American patients and their summated cost in different age groups. Methods: The latest data (2009) on the number of hospital discharges and national bill (hospital charges) linked with psychiatric disorders were extracted from the Nationwide Inpatient Sample (NIS). Results: National data shows that mood disorders are the largest diagnostic category in terms of percentage of psychiatri-crelated discharges in the 1 - 17 years age group. The proportion decreases gradually as age progresses while delirium, dementia, amnestic and other cognitive disorders increase exponentially after 65 years of age. Schizophrenia and other psychotic disorders as well as alcohol and substance-related disorders peak in the working age groups (18 - 64 years). From an economic point of view, mood disorders in the 18 - 44 age group has the highest national bill ($5.477 billion) followed by schizophrenic and other psychotic disorders in the same age group ($4.337 billion) and mood disorders in the 45 - 64 age group ($4.310 billion). On the third place come schizophrenic and other psychotic disorders in the 45 - 64 age group ($3.931 billion). Conclusion: This paper illustrates the high cost of psychiatric care in the U.S., especially the large fraction of healthcare money spent on working-age patients suffering from mood disorders. This underlines psychiatric cost-efficiency as a vital topic in the current healthcare debate.
Cite this paper: Sami Walid, M. , Zaytseva, N. and Perez, W. (2012) The psychiatric profile of the U.S. patient population across age groups. Open Journal of Epidemiology, 2, 37-43. doi: 10.4236/ojepi.2012.22006.

[1]   Google Public Data Explorer (2012) Population in the U.S.

[2]   Kochanek, K.D., Xu, J.Q., Murphy, S.L., et al. (2011) Deaths: Preliminary data for 2009.

[3]   Department of Economic and Social Affairs Population Division (2007) World population prospects: The 2006 revision.

[4]   National Center for Chronic Disease Prevention and Health Promotion (2009) Healthy aging: Improving and extending quality of life among older Americans.

[5]   Hutubessy, R., Chisholm, D. and Edejer, T.T. (2003) Generalized cost-effectiveness analysis for national-level priori-tysetting in the health sector. Cost Effectiveness and Resource Allocation, 2003, 1, 8. doi:10.1186/1478-7547-1-8

[6]   Chisholm, D., Sanderson, K., Ayuso-Mateos, J.L. and Saxena, S. (2004) Reducing the global burden of depression: Population-level analysis of intervention cost-effectiveness in 14 world regions. The British Journal of Psychiatry, 184, 393-403. doi:10.1192/bjp.184.5.393

[7]   Chisholm, D., Van Ommeren, M., Ayuso-Mateos, J.L. and Saxena, S. (2005) Cost-effectiveness of clinical interventions for reducing the global burden of bipolar disorder. The British Journal of Psychiatry, 187, 559-67. doi:10.1192/bjp.187.6.559

[8]   Centers for Disease Control and Prevention (2010) Current depression among adults—United States, 2006 and 2008. Morbidity and Mortality Weekly Report, 59, 1229- 1235.

[9]   Olfson, M. and Marcus, S.C. (2009) National patterns in antidepressant medication treatment. Archives of General Psychiatry, 66, 848-856. doi:10.1001/archgenpsychiatry.2009.81

[10]   Slavit, W.I., Reagin, A. and Finch, R.A. (2009) An employer’s guide to workplace substance abuse: Strategies and treatment recommendations. Center for Prevention and Health Services, Washington DC.

[11]   Department of Health and Human Services (2008) Results from the 2007 National Survey on Drug Use and Health: national findings.

[12]   Mann, D. (2010) More Americans drinking (alcohol).

[13]   Bouchery, E.E., Harwood, H.J., Sacks, J.J., Simon, C.J. and Brewer, R.D. (2011) Economic costs of excessive alcohol consumption in the U.S., 2006. American Journal of Preventive Medicine, 41, 516-524. doi:10.1016/j.amepre.2011.06.045

[14]   Galimberti, D. and Scarpini, E. (2011) Progress in Alzheimer’s disease. Journal of Neurology, 259, 201-211. doi:10.1007/s00415-011-6145-3