Thursday, September 11, 2014



IWS Documented News Service


Institute for Workplace Studies-----------------Professor Samuel B. Bacharach

School of Industrial & Labor Relations-------- Director, Institute for Workplace Studies

Cornell University

16 East 34th Street, 4th floor--------------------Stuart Basefsky

New York, NY 10016 -------------------------------Director, IWS News Bureau


This service is supported, in part, by donations. Please consider making a donation by following the instructions at


National Center for Health Statistics (NCHS)




Welcome! The National Center for Health Statistics Data Online Query System (NCHS DOQS) provides dynamically generated statistical tables, charts, and graphs using NCHS public use data.

The query system includes all data, search parameters, and output options necessary for custom queries of public health datasets. It does not require commercial statistical software packages (such as SAS or Stata) or file downloads. NCHS DOQS is available 24/7 free of charge.

Select a Dataset to Query:



Emergency Department Visits

Dataset Overview

Emergency department (ED) visit data are from the emergency department component of the National Hospital Ambulatory Medical Care Survey (NHAMCS), which is conducted annually by the National Center for Health Statistics. NHAMCS is a national probability sample of visits to the emergency and outpatient departments of non-institutional general and short-stay hospitals, excluding Federal, military, and Veterans Administration hospitals, located in the 50 states and the District of Columbia. Click on Additional Resources on the left navigation bar for more information. 

Basic Measures

Select measure to query

Estimated Numbers of ED Visits

Estimated Percentage Distribution of ED Visits

Estimated Crude Rates of ED Visits

Estimated Age-adjusted Rates of ED Visits





This information is provided to subscribers, friends, faculty, students and alumni of the School of Industrial & Labor Relations (ILR). It is a service of the Institute for Workplace Studies (IWS) in New York City. Stuart Basefsky is responsible for the selection of the contents which is intended to keep researchers, companies, workers, and governments aware of the latest information related to ILR disciplines as it becomes available for the purposes of research, understanding and debate. The content does not reflect the opinions or positions of Cornell University, the School of Industrial & Labor Relations, or that of Mr. Basefsky and should not be construed as such. The service is unique in that it provides the original source documentation, via links, behind the news and research of the day. Use of the information provided is unrestricted. However, it is requested that users acknowledge that the information was found via the IWS Documented News Service.










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