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Total Results: 1,768 records

Showing results for "sampling".

341. Methods – Applying HCUP Quality Indicators (pdf file)
     hcup-us.ahrq.gov/reports/methods/2018-01.pdf
     January 01, 2018 - There is no sampling error associated with Claritas census population counts. … • The NIS changed its sampling and weighting strategy in 2012. … The nationally weighted analysis files use the same sampling strategy as the 2000–2011 NIS. … Hospitals were excluded from the sampling frame if the coding of patient race was suspect (i.e., more … For population counts based on Claritas data, there is no sampling error.

342. Hospital Inpatient Statistics, 1996
     hcup-us.ahrq.gov/reports/natstats/his96/clinclas.htm
     September 01, 1999 - The HCUP sample is a stratified probability sample of hospitals in the frame, with sampling probabilities … Hospitals from HCUP participating States (the sampling frame) are selected to represent these strata

343. Methods – Applying HCUP Quality Indicators (pdf file)
     hcup-us.ahrq.gov/reports/methods/2017-03.pdf
     January 01, 2017 - There is no sampling error associated with Claritas HCUP (07/13/17) Methods for HCUP Data in 2016 … The NIS changed its sampling and weighting strategy in 2012. … The nationally weighted analysis files use the same sampling strategy as the 2000–2011 NIS. … Hospitals were excluded from the sampling frame if the coding of patient race was suspect (i.e., more … For population counts based on Claritas data, there is no sampling error.

344. Methods – Applying HCUP Quality Indicators (pdf file)
     hcup-us.ahrq.gov/reports/methods/2016-01.pdf
     January 01, 2016 - There is no sampling error associated with Nielsen HCUP (11/20/15) Methods for HCUP Data in 2015 …  The NIS changed its sampling and weighting strategy in 2012. … The nationally weighted analysis files use the same sampling strategy as the 2000–2011 NIS. … Hospitals were excluded from the sampling frame if the coding of patient race was suspect (i.e., more … For population counts based on Nielsen data, there is no sampling error.

345. NASS Overview
     hcup-us.ahrq.gov/nassoverview.jsp
     July 01, 2025 - The sampling of the NASS changed over time to capture emergent in-scope ambulatory surgeries (i.e., in-scope

346. Overview of Hospital Stays in the United States, 2012 #180
     hcup-us.ahrq.gov/reports/statbriefs/sb180-Hospitalizations-United-States-2012.jsp
     October 01, 2014 - The new sampling strategy is expected to result in more precise estimates than did the previous NIS design … by reducing sampling error: for many estimates, confidence intervals under the new design are about … It is drawn from a sampling frame that contains hospitals comprising more than 95 percent of all discharges

347. Payers of Opioid-Related Inpatient Stays and Emergency Department Visits Nationally and by State, 2010 and 2015 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb239-Opioid-Payer-Hospital-Stays-ED-Visits-by-State.pdf
     February 01, 2018 - It is drawn from a sampling frame that contains hospitals comprising more than 95 percent of all discharges … Over time, the sampling frame for the NIS has changed; thus, the number of States contributing to the … The new sampling strategy is expected to result in more precise estimates than those that resulted from … the previous NIS design by reducing sampling error: for many estimates, confidence intervals under … Over time, the sampling frame for the NEDS has changed; thus, the number of States contributing to the

348. Surgeries in Hospital-Based Ambulatory Surgery and Hospital Inpatient Settings, 2014 #223
     hcup-us.ahrq.gov/reports/statbriefs/sb223-Ambulatory-Inpatient-Surgeries-2014.jsp
     January 01, 2014 - It is drawn from a sampling frame that contains hospitals comprising more than 95 percent of all discharges … Over time, the sampling frame for the NIS has changed; thus, the number of States contributing to the … The new sampling strategy is expected to result in more precise estimates than those that resulted from … the previous NIS design by reducing sampling error: for many estimates, confidence intervals under the

349. Trends and Disparities in Delivery Hospitalizations Involving Severe Maternal Morbidity, 2006-2015 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb243-Severe-Maternal-Morbidity-Delivery-Trends-Disparities.pdf
     February 01, 2018 - It is drawn from a sampling frame that contains hospitals comprising more than 95 percent of all discharges … Over time, the sampling frame for the NIS has changed; thus, the number of States contributing to the … The new sampling strategy is expected to result in more precise estimates than those that resulted from … the previous NIS design by reducing sampling error: for many estimates, confidence intervals under

350. Inpatient Stays and Emergency Department Visits Involving Traumatic Brain Injury, 2017 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb255-Traumatic-Brain-Injury-Hospitalizations-ED-Visits-2017.pdf
     January 01, 2017 - It is drawn from a sampling frame that contains hospitals comprising more than 95 percent of all discharges … Over time, the sampling frame for the NIS has changed; thus, the number of States contributing to the … Over time, the sampling frame for the NEDS has changed; thus, the number of States contributing to the … Over time, the sampling frame for the NRD will change; thus, the number of States contributing to the

351. Teen Hospital Stays for Childbirth, 2004-2013 #208
     hcup-us.ahrq.gov/reports/statbriefs/sb208-Teen-Childbirth-Hospital-Stays-Trends.jsp
     August 01, 2016 - It is drawn from a sampling frame that contains hospitals comprising more than 95 percent of all discharges … Over time, the sampling frame for the NIS has changed; thus, the number of States contributing to the … The new sampling strategy is expected to result in more precise estimates than those that resulted from … the previous NIS design by reducing sampling error: for many estimates, confidence intervals under the

352. Teen Hospital Stays for Childbirth, 2004-2013 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb208-Teen-Childbirth-Hospital-Stays-Trends.pdf
     January 01, 2016 - It is drawn from a sampling frame that contains hospitals comprising more than 95 percent of all discharges … Over time, the sampling frame for the NIS has changed; thus, the number of States contributing to the … The new sampling strategy is expected to result in more precise estimates than those that resulted from … the previous NIS design by reducing sampling error: for many estimates, confidence intervals under

353. Clinical Classifications for Health Policy Research: Hospital Inpatient Statistics, 1995
     hcup-us.ahrq.gov/reports/natstats/his95/clinclas.htm
     January 01, 1999 - The HCUP sample is a stratified probability sample of hospitals in the frame, with sampling probabilities … Hospitals from HCUP-3 participating States (the sampling frame) are selected to represent these strata

354. Most Frequent Operating Room Procedures Performed in U.S. Hospitals, 2003–2012 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb186-Operating-Room-Procedures-United-States-2012.pdf
     January 01, 2012 - It is drawn from a sampling frame that contains hospitals comprising more than 95 percent of all discharges … The new sampling strategy is expected to result in more precise estimates than those that resulted from … the previous NIS design by reducing sampling error: for many estimates, confidence intervals under

355. Characteristics of Medicaid and Uninsured Hospitalizations, 2012 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb182-Medicaid-Uninsured-Hospitalizations-2012.pdf
     January 01, 2012 - It is drawn from a sampling frame that contains hospitals comprising more than 95 percent of all discharges … The new sampling strategy is expected to result in more precise estimates than those that resulted from … the previous NIS design by reducing sampling error: for many estimates, confidence intervals under

356. 2012 HCUP National Inpatient Sample (NIS) Comparison Report
     hcup-us.ahrq.gov/db/nation/nis/reports/2012niscomparisonrpt.jsp
     April 18, 2016 - The sampling frame for the NIS includes all U.S. short-term, acute care general and specialty hospitals … As shown in Figure 1, the 2012 NIS is selected from a sampling frame comprising 44 HCUP Partner organizations … Only six States, plus the District of Columbia, are not included in the 2012 NIS sampling frame: Idaho

357. Methods Applying AHRQ Quality Indicators to Healthcare Cost and Utilization Project (HCUP) Data for the Tenth (2012) NHQR and NHDR (pdf file)
     hcup-us.ahrq.gov/reports/methods/2012-02.pdf
     January 01, 2012 - There is no sampling error associated with Claritas census population counts; therefore, appropriate … Preparing the Disparities Analysis File The sampling and weighting strategy used for the disparities … The sampling strata were defined based on five hospital characteristics: geographic region, hospital … • Hospitals were excluded from the sampling frame if the coding of patient race was suspect (i.e … For population counts based on Claritas data, there is no sampling error.

358. HCUP_methods_series_cover.ai (pdf file)
     hcup-us.ahrq.gov/reports/methods/2003_04.pdf
     January 01, 2003 - Standard errors were calculated for estimates from the 16 State SID; there is no sampling error associated … For Claritas population counts, there is no sampling error. … through the Statistical Analysis System (SAS) procedure called PROC SURVEYMEANS so that the HCUP-NIS sampling … are excluded from the 2000 NIS but included in the 1994 and 1997 NIS because of the change in the sampling … For population counts based on the US census, there is no sampling error.

359. Most Frequent Operating Room Procedures Performed in U.S. Hospitals, 2003-2012 #186
     hcup-us.ahrq.gov/reports/statbriefs/sb186-Operating-Room-Procedures-United-States-2012.jsp
     December 01, 2014 - It is drawn from a sampling frame that contains hospitals comprising more than 95 percent of all discharges … The new sampling strategy is expected to result in more precise estimates than those that resulted from … the previous NIS design by reducing sampling error: for many estimates, confidence intervals under the

360. Characteristics of Medicaid and Uninsured Hospitalizations, 2012 #182
     hcup-us.ahrq.gov/reports/statbriefs/sb182-Medicaid-Uninsured-Hospitalizations-2012.jsp
     October 01, 2014 - It is drawn from a sampling frame that contains hospitals comprising more than 95 percent of all discharges … The new sampling strategy is expected to result in more precise estimates than those that resulted from … the previous NIS design by reducing sampling error: for many estimates, confidence intervals under the