is the largest all-payer inpatient care database in the United States, containing data on more than seven million hospital stays from approximately 1,000 hospitals. Its large sample size is ideal for developing national and regional estimates and enables analyses of rare conditions, uncommon treatments, and special populations. The following links provide SPSS load programs for the NIS.

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.