Format

Send to:

Choose Destination
See comment in PubMed Commons below
Neurosurgery. 2013 Aug;73(2):217-22; discussion 212-3. doi: 10.1227/01.neu.0000430290.93304.33.

The epidemiology of admissions of nontraumatic subarachnoid hemorrhage in the United States.

Author information

  • 1*Department of Neurology, Thomas Jefferson University, Philadelphia, Pennsylvania; ‚Ä°Department of Neurosurgery, Thomas Jefferson University, Philadelphia, Pennsylvania.

Abstract

BACKGROUND:

Subarachnoid hemorrhage (SAH) is the cause of 5% to 10% of strokes annually in the United States.

OBJECTIVE:

To study the incidence and mortality trends of admissions of SAH from 1979 to 2008 using a nationally representative sample of all nonfederal acute-care hospitals in the United States: The National Hospital Discharge Survey.

METHODS:

The sample was obtained from the hospital discharge records according to the International Classification of Disease, 9th Revision, Clinical Modification code 430.

RESULTS:

We reviewed data on approximately 1 billion hospitalizations in the United States over a 30-year study period and identified 612,500 cases of SAH, which was more common in women (relative risk 1.71, 95% confidence interval 1.7-1.72) and nonwhite persons than white persons (relative risk 1.46, 95% confidence interval 1.4-1.5). The estimated incidence rate of admission after SAH was 7.2 to 9.0 per 100,000/year and did not significantly change over the study period. Overall, in-hospital mortality after SAH fell from 30% during the period from 1979 to 1983 to 20% during the subperiod from 2004 to 2008 (P = .03) and was lower in larger treating hospitals. The average days of care for SAH hospitalizations decreased, but the rate of discharge to long-term care facilities increased.

CONCLUSION:

The incidence rate of admission after SAH has remained stable over the past 30 years. Total deaths and in-hospital mortality after SAH have decreased significantly. In-hospital mortality after SAH is lower in larger treating hospitals.

PMID:
23615089
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Lippincott Williams & Wilkins
    Loading ...
    Write to the Help Desk