produces national estimates about emergency department (ED) visits across the country. The NEDS describes ED visits, regardless of whether they result in admission, and is an exceptional resource for conducting research on high-profile emergent health delivery issues. One of the most distinctive features of the NEDS is its large sample size, which allows for analysis across hospital types and the study of relatively uncommon disorders and procedures. The following links provide SPSS load programs for the NEDS.

SPSS load programs may be used to convert the ASCII data files into SPSS format. There is one SPSS load program for each ASCII data file. SPSS load programs are provided by year. The amount of time it takes to access a document depends on your machine, browser and Internet connection.

In total, the comma-delimited version of the NEDS is about 10 gigabytes (GB); the NEDS Core file loaded into SPSS is about 4 GB. Because it is not unusual to have several versions of a file marking different steps while preparing it for analysis and more versions for the actual analyses, the amount of space required could escalate rapidly. A researcher needs approximately 60 to 100 GB of space to work comfortably in SPSS with the NEDS files.