Skip to main content

Ambulatory Care Visits for Treating Adverse Drug Effects in the United States, 1995–2001

Buy Article:

$20.00 plus tax (Refund Policy)


Background: Adverse drug events (ADEs) are a well-recognized patient safety concern, but their magnitude is unknown. Ambulatory visits for treating adverse drug effects (VADEs) as recorded in national surveys offer an alternative way to estimate the national prevalence of ADEs because each VADE indicates that an ADE occurred and was serious enough to require care.

Methods: A nationally representative sample of visits to physician offices, hospital outpatient departments, and emergency departments was analyzed. VADEs were identified as the first-listed cause of injury.

Results: In 2001, there were 4.3 million VADEs in the United States, averaging 15 visits per 1,000 population. VADE rates at physician offices, hospital outpatient departments, and hospital emergency departments were at 3.7, 3.4, and 7.3 per 1,000 visits, respectively. There was an upward trend in the total number of VADEs from 1995 to 2001 (p < .05), but the increases in VADEs per 1,000 visits and per 1,000 population were not statistically significant. VADEs were lower in children younger than 15 and higher in the elderly aged 65–74 than in adults aged 25–44 (p < .01) and were more frequent in females than in males (p < .05).

Discussion: Although methodologically conservative, the study suggests that ADEs are a significant threat to patient safety in the United States.

Document Type: Research Article

Publication date: July 1, 2005

More about this publication?
  • Published monthly, The Joint Commission Journal on Quality and Patient Safety is a peer-reviewed publication dedicated to providing health professionals with the information they need to promote the quality and safety of health care. The Joint Commission Journal on Quality and Patient Safety invites original manuscripts on the development, adaptation, and/or implementation of innovative thinking, strategies, and practices in improving quality and safety in health care. Case studies, program or project reports, reports of new methodologies or new applications of methodologies, research studies on the effectiveness of improvement interventions, and commentaries on issues and practices are all considered.

    Also known as Joint Commission Journal on Quality Improvement and Joint Commission Journal on Quality and Safety
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Information for Advertisers
  • Reprints and Permissions
  • Index
  • ingentaconnect is not responsible for the content or availability of external websites

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more