TY - JOUR
T1 - Epidemiology of Adult Psychiatric Visits to U.S. Emergency Departments
AU - Hazlett, Sara B.
AU - McCarthy, Melissa L.
AU - Londner, Michael S.
AU - Onyike, Chiadi U.
N1 - Funding Information:
Data for this study came from the National Hospital Ambulatory Medical Care Survey (NHAMCS) sponsored by the National Center for Health Statistics (NCHS). 3 We used the ED data from the NHAMCS conducted in 2000 to describe the epidemiology of PREDVs among adults in the United States and similar data from 1992 to 2000 to examine PREDV trends over time. Because NHAMCS data are available for public use and do not include unique identifiers, the institutional review board at the authors' institution exempted this study.
PY - 2004/2
Y1 - 2004/2
N2 - Objectives: To characterize psychiatric-related emergency department visits (PREDVs) among adults in the United States for the year 2000 and to analyze PREDV trends from 1992 to 2000. Methods: Emergency department (ED) visit data from the National Hospital Ambulatory Medical Care Survey were used to estimate the number of PREDVs for adults aged 18 years and older. A PREDV was defined as any visit with a psychiatric discharge diagnosis (ICD N290-N312) or a suicide attempt (ICD E950-E959). Results: Approximately 4.3 million PREDVs occurred in the United States in the year 2000, yielding an annual rate of 21 visits per 1,000 adults. The PREDV rates increased 15% between 1992 and 2000. The PREDVs accounted for 5.4% of all ED visits. Substance abuse (27%), neuroses (26%), and psychoses (21%) were the most common conditions. African Americans had significantly higher visit rates (29/1,000; 95% CI = 27/1,000 to 31/1,000) compared with whites (23/1,000; 95% CI = 22/1,000 to 25/1,000). Persons with Medicaid (66/1,000; 95% CI = 64/1,000 to 68/1,000) had double the rate of PREDVs than the uninsured (33/1,000; 95% CI = 31/1,000 to 35/1,000) and almost eight times the rate of those privately insured (8/1,000; 95% CI = 7/1,000 to 10/1,000). Patients with psychiatric diagnoses had a higher admission rate (22%) than those with nonpsychiatric diagnoses (15%). The uninsured were the least likely to be admitted for all major psychiatric conditions except suicide (p < 0.0001). Conclusions: Psychiatric-related ED visits represent a substantial and growing number of ED visits each year. Patient characteristics influence the likelihood of a PREDV. Further research is needed to better understand the role that hospital EDs play in the delivery of health care services to those with mental illness.
AB - Objectives: To characterize psychiatric-related emergency department visits (PREDVs) among adults in the United States for the year 2000 and to analyze PREDV trends from 1992 to 2000. Methods: Emergency department (ED) visit data from the National Hospital Ambulatory Medical Care Survey were used to estimate the number of PREDVs for adults aged 18 years and older. A PREDV was defined as any visit with a psychiatric discharge diagnosis (ICD N290-N312) or a suicide attempt (ICD E950-E959). Results: Approximately 4.3 million PREDVs occurred in the United States in the year 2000, yielding an annual rate of 21 visits per 1,000 adults. The PREDV rates increased 15% between 1992 and 2000. The PREDVs accounted for 5.4% of all ED visits. Substance abuse (27%), neuroses (26%), and psychoses (21%) were the most common conditions. African Americans had significantly higher visit rates (29/1,000; 95% CI = 27/1,000 to 31/1,000) compared with whites (23/1,000; 95% CI = 22/1,000 to 25/1,000). Persons with Medicaid (66/1,000; 95% CI = 64/1,000 to 68/1,000) had double the rate of PREDVs than the uninsured (33/1,000; 95% CI = 31/1,000 to 35/1,000) and almost eight times the rate of those privately insured (8/1,000; 95% CI = 7/1,000 to 10/1,000). Patients with psychiatric diagnoses had a higher admission rate (22%) than those with nonpsychiatric diagnoses (15%). The uninsured were the least likely to be admitted for all major psychiatric conditions except suicide (p < 0.0001). Conclusions: Psychiatric-related ED visits represent a substantial and growing number of ED visits each year. Patient characteristics influence the likelihood of a PREDV. Further research is needed to better understand the role that hospital EDs play in the delivery of health care services to those with mental illness.
KW - Emergency department
KW - Epidemiology
KW - Insurance
KW - NHAMCS
KW - Psychiatry
UR - http://www.scopus.com/inward/record.url?scp=0842347585&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0842347585&partnerID=8YFLogxK
U2 - 10.1197/j.aem.2003.09.014
DO - 10.1197/j.aem.2003.09.014
M3 - Article
C2 - 14759965
AN - SCOPUS:0842347585
SN - 1069-6563
VL - 11
SP - 193
EP - 195
JO - Academic Emergency Medicine
JF - Academic Emergency Medicine
IS - 2
ER -