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Showing results for "samples".

41. Nationwide Ambulatory Surgery Sample (NASS)
    hcup-us.ahrq.gov/news/exhibit_booth/nass_brochure.jsp
    March 01, 2020 - Nationwide Ambulatory Surgery Sample (NASS) An official website of the Department of Health & Human Services Search All AHRQ Websites Careers Contact Us Espanol FAQs Email U…

42. 2003 HCUP Nationwide Inpatient Sample (NIS) Comparison Report
    hcup-us.ahrq.gov/db/nation/nis/reports/2003niscomparisonrpt.jsp
    May 01, 2016 - Both the NIS and NHDS are samples, and statistics derived from them are estimates. … The report cautions that estimates cannot be expected to be identical when two different samples are … These include: Random variation between the two samples Differences in sampling strategies … Major Findings Considering all of these possible reasons for significant differences among the samples … The NIS and NHDS samples aligned closely across most age groups, sex, and payer categories.

43. 2002 HCUP Nationwide Inpatient Sample (NIS) Comparison Report
    hcup-us.ahrq.gov/db/nation/nis/reports/2002niscomparisonrpt.jsp
    June 01, 2016 - Both the NIS and NHDS are samples, and statistics derived from them are estimates. … The report cautions that estimates cannot be expected to be identical when two different samples are … These include: Random variation between the two samples Differences in sampling strategies … tests conducted Considering all of these possible reasons for significant differences among the samples … The NIS and NHDS samples aligned closely across most age groups, sex, and payer categories.

44. Microsoft Word - CaseforPOAIndicator_final_060806 _2_.doc (pdf file)
    hcup-us.ahrq.gov/reports/methods/2006_9.pdf
    January 01, 2006 - Both the NIS and NHDS are samples, and statistics derived from them are estimates. … The report cautions that estimates cannot be expected to be identical when two different samples are … These include: • Random variation between the two samples • Differences in sampling strategies … Because the NIS and NHDS estimates were both based on samples, two-sample t-tests were performed whenever … The NIS and NHDS samples aligned closely across most age groups, gender, and payer categories.

45. Casestudy Qdranalysis04072017 (pdf file)
    hcup-us.ahrq.gov/datainnovations/CaseStudy_QDRanalysis04072017.pdf
    April 07, 2017 - differences between pairs of QI estimates in the QDR is a two-sided χ2 test that assumes independent samples … differences between pairs of QI estimates in the QDR is a two-sided χ2 test that assumes independent samples … The current approach to testing significant differences between pairs of estimates from independent samples … There are statistical tests for dependent samples, but we would need to research the best approach.

46. National (Nationwide) Inpatient Sample (NIS)
    hcup-us.ahrq.gov/news/exhibit_booth/nis_brochure.jsp
    May 01, 2018 - National (Nationwide) Inpatient Sample (NIS) An official website of the Department of Health & Human Services Search All AHRQ Websites Careers Contact Us Espanol FAQs Email …

47. Nationwide Emergency Department Sample (NEDS)
    hcup-us.ahrq.gov/news/exhibit_booth/neds_brochure.jsp
    May 01, 2018 - Nationwide Emergency Department Sample (NEDS) An official website of the Department of Health & Human Services Search All AHRQ Websites Careers Contact Us Espanol FAQs Email…

48. Table 2: NIS and NHDS Comparisons by Region, 1999 (pdf file)
    hcup-us.ahrq.gov/reports/methods/1999NISComparisonReportFinal.pdf
    March 08, 2002 - This feature distinguishes the NIS from other discharge samples (such as the National Hospital Discharge … • We continue to produce two non-overlapping 10-percent sub-samples that allow researchers to test … For this analysis we drew 500 samples using the old sampling design with and without the longitudinal … Final Report on the 1999 NIS Comparison 9 RESULTS Whenever two different samples are taken, … The NHDS and MedPAR both offer samples that are drawn from all 50 states, rather than the 24 included

49. Filespecifications Nis 2002 10Pct Sample A
    hcup-us.ahrq.gov/db/nation/nis/tools/stats/FileSpecifications_NIS_2002_10PCT_SAMPLE_A.TXT
    January 01, 2002 - Data Set Name: NIS_2002_10PCT_SAMPLE_A Number of Observations: 785398 Total Record Length: 490 Total Number of Variables: 116 Columns Description: ======= ============ 1- 3 Database name 5- 8 Discharge year of data 10- 25 File name 27- 29 Variable number 31- 49 Variable name 51- 53 …

50. Nis 2001 10Pct Sample B
    hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_2001_10PCT_SAMPLE_B.TXT
    January 01, 2001 - Data Set Name: NIS_2001_10PCT_SAMPLE_B Number of Observations: 745273 Total Record Length: 483 Total Number of Variables: 115 Columns Description: ======= ============ 1- 3 Database name 5- 8 Discharge year of data 10- 25 File name 27- 29 Variable number 31- 49 Variable nam…

51. Filespecifications Nis 2003 10Pct Sample A
    hcup-us.ahrq.gov/db/nation/nis/tools/stats/FileSpecifications_NIS_2003_10PCT_SAMPLE_A.TXT
    January 01, 2003 - Data Set Name: NIS_2003_10PCT_SAMPLE_A Number of Observations: 797773 Total Record Length: 505 Total Number of Variables: 126 Columns Description: ======= ============ 1- 3 Database name 5- 8 Discharge year of data 10- 25 File name 27- 29 Variable number 31- 59 Variable name 61- 63 …

52. Filespecifications Nis 2004 10Pct Sample A
    hcup-us.ahrq.gov/db/nation/nis/tools/stats/FileSpecifications_NIS_2004_10PCT_SAMPLE_A.TXT
    January 01, 2004 - Data Set Name: NIS_2004_10PCT_SAMPLE_A Number of Observations: 800457 Total Record Length: 506 Total Number of Variables: 126 Columns Description: ======= ============ 1- 3 Database name 5- 8 Discharge year of data 10- 25 File name 27- 29 Variable number 31- 59 Variable name 61- 63 …

53. Nis 2002 Summarystats 10Pct Sample A (pdf file)
    hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_2002_SummaryStats_10PCT_SAMPLE_A.PDF
    January 01, 2002 - please refer to the section on Description of Data Elements. For more information about the coding of HCUP data elements, please refer to the section on Description of Data Elements. For more information about the coding of HCUP data elements, HCUP Summary Statistics Report: NIS 2002 - 10PCT_SAMPLE_A File 1 Means o…

54. Nis 2004 Summarystats 10Pct Sample A (pdf file)
    hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_2004_SummaryStats_10PCT_SAMPLE_A.PDF
    January 01, 2004 - please refer to the section on Description of Data Elements. For more information about the coding of HCUP data elements, please refer to the section on Description of Data Elements. For more information about the coding of HCUP data elements, HCUP Summary Statistics Report: NIS 2004 - 10PCT_SAMPLE_A File 1 Means o…

55. Nis 2003 Summarystats 10Pct Sample A (pdf file)
    hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_2003_SummaryStats_10PCT_SAMPLE_A.PDF
    January 01, 2003 - please refer to the section on Description of Data Elements. For more information about the coding of HCUP data elements, please refer to the section on Description of Data Elements. For more information about the coding of HCUP data elements, HCUP Summary Statistics Report: NIS 2003 - 10PCT_SAMPLE_A File 1 Means o…

56. Nis 2001 Summarystats 10Pct Sample A (pdf file)
    hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_2001_SummaryStats_10PCT_SAMPLE_A.PDF
    January 01, 2001 - please refer to the section on Description of Data Elements. For more information about the coding of HCUP data elements, please refer to the section on Description of Data Elements. For more information about the coding of HCUP data elements, HCUP Summary Statistics Report: NIS 2001 - 10PCT_SAMPLE_A File 1 Means o…

57. Nis 2000 Summarystats 10Pct Sample A (pdf file)
    hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_2000_SummaryStats_10PCT_SAMPLE_A.PDF
    January 01, 2000 - please refer to the section on Description of Data Elements. For more information about the coding of HCUP data elements, please refer to the section on Description of Data Elements. For more information about the coding of HCUP data elements, HCUP Summary Statistics Report: NIS 2000 - 10PCT_SAMPLE_A File 1 Means o…

58. HCUP Nationwide Inpatient Sample Redesign Final Report
    hcup-us.ahrq.gov/db/nation/nis/reports/NIS_2012_Redesign_report.jsp
    January 01, 2012 - of discharges from a sample of approximately 1,000 hospitals, whereas the proposed systematic design samples … 0.58 0.57 0.55 Hospital Mortality 0.57 0.55 0.55 0.51 Based on 500 Simulated Samples … ) that remained fixed over the 500 samples. … By design, all samples were weighted so that the sum of the weights equaled the national population of … of discharges in the universe, but samples under the original NIS design will estimate different numbers

59. Nisredesignfinalreport040914 (pdf file)
    hcup-us.ahrq.gov/db/nation/nis/reports/NISRedesignFinalReport040914.pdf
    June 11, 2014 - discharges from a sample of approximately 1,000 hospitals, whereas the proposed systematic design samples … For each bootstrap population we drew samples according to each of the two designs and we estimated … ) that remained fixed over the 500 samples. … By design, all samples were weighted so that the sum of the weights equaled the national population … Therefore, at the census division level, samples under the SYS design will always estimate the same

60. 2014-04 (pdf file)
    hcup-us.ahrq.gov/reports/methods/2014-04.pdf
    January 01, 2014 - discharges from a sample of approximately 1,000 hospitals, whereas the proposed systematic design samples … For each bootstrap population we drew samples according to each of the two designs and we estimated … ) that remained fixed over the 500 samples. … By design, all samples were weighted so that the sum of the weights equaled the national population … Therefore, at the census division level, samples under the SYS design will always estimate the same