Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The mean proportion of unique records in samples drawn from the NY State Inpatient Database data set for 1000 samples at different sampling fractions for month/year of birth, ZIP3, gender, length of stay in days, and time since last visit in days. The whiskers represent the standard deviation. The population risk value is 0.1815.
