-
hcup-us.ahrq.gov/reports/methods/2005_02.pdf
January 01, 2005 - and Internet search confirmed the absence of universal data standards and
underscored the lack of systematic
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_1998.jsp
January 01, 1998 - The hospitals were sorted according to these variables prior to systematic random sampling.
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_1999.jsp
January 01, 1999 - The hospitals were sorted according to these variables prior to systematic random sampling.
-
hcup-us.ahrq.gov/db/nation/nis/NIS_2008_INTRODUCTION.pdf
January 01, 2008 - The hospitals were sorted according to these variables prior to systematic random
sampling. … This
was accomplished by sorting by three-digit ZIP Code within each stratum prior to drawing a
systematic … We then drew a systematic random sample of up to 20% of the total number of U.S. hospitals
within each
-
hcup-us.ahrq.gov/db/nation/nis/2006NIS_INTRODUCTION.pdf
November 01, 2015 - The hospitals were sorted according to these variables prior to systematic random
sampling. … This
was accomplished by sorting by three-digit ZIP Code within each stratum prior to drawing a
systematic … We then drew a systematic random sample of up to 20% of the total number of U.S. hospitals
within each
-
hcup-us.ahrq.gov/db/nation/nis/NIS_2007_INTRODUCTION.pdf
January 01, 2007 - The hospitals were sorted according to these variables prior to systematic random
sampling. … This
was accomplished by sorting by three-digit ZIP Code within each stratum prior to drawing a
systematic … We then drew a systematic random sample of up to 20% of the total number of U.S. hospitals
within each
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2011.jsp
January 01, 2011 - The hospitals were sorted according to these data elements prior to systematic random sampling. … This was accomplished by sorting by three-digit ZIP Code within each stratum prior to drawing a systematic … We then drew a systematic random sample of up to 20% of the total number of U.S. hospitals within each
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2010.jsp
January 01, 2010 - The hospitals were sorted according to these data elements prior to systematic random sampling. … This was accomplished by sorting by three-digit ZIP Code within each stratum prior to drawing a systematic … We then drew a systematic random sample of up to 20% of the total number of U.S. hospitals within each
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2009.jsp
January 01, 2009 - The hospitals were sorted according to these data elements prior to systematic random sampling. … This was accomplished by sorting by three-digit ZIP Code within each stratum prior to drawing a systematic … We then drew a systematic random sample of up to 20% of the total number of U.S. hospitals within each
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2008.jsp
January 01, 2008 - The hospitals were sorted according to these variables prior to systematic random sampling. … This was accomplished by sorting by three-digit ZIP Code within each stratum prior to drawing a systematic … We then drew a systematic random sample of up to 20% of the total number of U.S. hospitals within each
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2007.jsp
January 01, 2007 - The hospitals were sorted according to these variables prior to systematic random sampling. … This was accomplished by sorting by three-digit ZIP Code within each stratum prior to drawing a systematic … We then drew a systematic random sample of up to 20% of the total number of U.S. hospitals within each
-
hcup-us.ahrq.gov/reports/methods/2006_05_NISTrendsReport_1988-2004A.pdf
January 01, 2006 - Beginning
in 2012, the NIS was a stratified systematic random sample of patients with sampling
probabilities … Switching to the systematic sample design from the present NIS sample design3
2. … Switching to the systematic
design had no effect on the universe and, therefore, no effect on values
-
hcup-us.ahrq.gov/reports/methods/2006_9.pdf
January 01, 2006 - representation, hospitals were sorted by state and
by the first three digits of their ZIP Code prior to systematic … During the third and final stage, a sample of discharges was selected by systematic
random sampling … A systematic random sample of
discharges was selected from
each hospital.
-
hcup-us.ahrq.gov/db/nation/nis/reports/2002niscomparisonrpt.jsp
June 01, 2016 - representation, hospitals were sorted by state and by the first three digits of their ZIP Code prior to systematic … During the third and final stage, a sample of discharges was selected by systematic random sampling techniques … A systematic random sample of discharges was selected from each hospital.
-
hcup-us.ahrq.gov/reports/methods/2005_03_del_379.pdf
January 01, 2005 - representation, hospitals were sorted by state and
by the first three digits of their ZIP Code prior to systematic … During the third and final stage, a sample of discharges was selected by systematic
random sampling … A systematic random sample of
discharges was selected from
each hospital.
-
hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2013.jsp
January 01, 2013 - This was accomplished through sorting by three-digit ZIP Code within each stratum prior to drawing a systematic
-
hcup-us.ahrq.gov/db/quality.pdf
January 31, 2025 - Use the latter to
evaluate whether systematic problems exist.
• Never "fix" or impute data.
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2000.jsp
January 01, 2000 - The hospitals were sorted according to these variables prior to systematic random sampling.
-
hcup-us.ahrq.gov/db/nation/nass/NASS_Introduction_2017.jsp
January 01, 2017 - THE HCUP NATIONWIDE AMBULATORY SURGERY SAMPLE (NASS) 2017
An official website of the Department of Health & Human Services
Search All AHRQ Websites
Careers
Contact Us
Espanol
…
-
hcup-us.ahrq.gov/db/nation/nass/NASS_Introduction_2016.pdf
January 01, 2016 - HEALTHCARE COST AND UTILIZATION PROJECT — HCUP
HEALTHCARE COST AND UTILIZATION PROJECT — HCUP
A FEDERAL-STATE-INDUSTRY PARTNERSHIP IN HEALTH DATA
Sponsored by the Agency for Healthcare Research and Quality
INTRODUCTION TO
THE HCUP NATIONWIDE AMBULATORY SURGERY SAMPLE (NASS)
2016
…