The Nationwide Inpatient Sample (NIS) is a database focused on hospital stay information. Users are able to use the NIS to identify, track, and analyze national trends in health care utilization, access, charges, quality, and outcomes. The NIS is the largest all-payer inpatient care database in the United States, containing data on more than seven million hospital stays. Its large sample size is ideal for developing national and regional estimates, and it enables analyses of rare conditions, uncommon treatments, and special populations. The NIS is the only national hospital database containing charge information on all patients, regardless of payer, including persons covered by Medicare, Medicaid, private insurance, and the uninsured.
The NIS does NOT track the same patients year to year, therefore it is not suitable for research on hospital readmissions, patient progress, etc.
The National Inpatient Sample (NIS) can be used to apply more than 100 clinical and nonclinical variables to your research, including:
The National Inpatient Sample (NIS) can be used for research on a variety of topics, including:
The Capozzi Library provides access to the following years of data:
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