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hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1996_SummaryStats.PDF
January 01, 1996 - 24.65712
Median 3.000000 Variance 607.97372
Mode 2.000000 Range 29532
Interquartile Range 4.00000
Tests … For Location
Quantiles
Missing Values
LOS
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
TOTCHG
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
TOTCHG_X
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
DISCWT_U
Moments
Basic Measures of Location and Variability
Tests
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hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1994_SummaryStats.PDF
January 01, 1994 - 18.87102
Median 3.000000 Variance 356.11554
Mode 2.000000 Range 25644
Interquartile Range 4.00000
Tests … For Location
Quantiles
Missing Values
LOS
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
TOTCHG
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
TOTCHG_X
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
DISCWT_U
Moments
Basic Measures of Location and Variability
Tests
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hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1995_SummaryStats.PDF
January 01, 1995 - 23.76242
Median 3.000000 Variance 564.65245
Mode 2.000000 Range 32205
Interquartile Range 4.00000
Tests … For Location
Quantiles
Missing Values
LOS
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
TOTCHG
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
TOTCHG_X
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
DISCWT_U
Moments
Basic Measures of Location and Variability
Tests
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hcup-us.ahrq.gov/datainnovations/clinicaldata/florida.jsp
July 01, 2016 - Statistical analysis was conducted on the merged dataset to determine which laboratory tests improved
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hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2007v2_MaskedStats_Core.PDF
April 09, 2010 - 1.39855
Median 4.558561 Variance 1.95593
Mode 3.574315 Range 26.49940
Interquartile Range 1.40713
Tests … Deviation 2160
Median 833.000 Variance 4664441
Mode 315.000 Range 74833
Interquartile Range 1233
Tests … Table 1
The Univariate Procedure
DISCWT
Moments
Basic Measures of Location and Variability
Tests … For Location
Quantiles
AGE
Moments
Basic Measures of Location and Variability
Tests For Location … Quantiles
Missing Values
TOTCHG_ED
Moments
Basic Measures of Location and Variability
Tests For
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hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2008_MaskedStats_Core.PDF
January 01, 2008 - 1.28417
Median 4.359627 Variance 1.64909
Mode 4.393994 Range 29.26280
Interquartile Range 0.86263
Tests … Deviation 2484
Median 949.000 Variance 6172584
Mode 778.000 Range 74900
Interquartile Range 1392
Tests … Table 1
The Univariate Procedure
DISCWT
Moments
Basic Measures of Location and Variability
Tests … For Location
Quantiles
AGE
Moments
Basic Measures of Location and Variability
Tests For Location … Quantiles
Missing Values
TOTCHG_ED
Moments
Basic Measures of Location and Variability
Tests For
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hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2007_MaskedStats_Core.PDF
January 01, 2007 - 1.36213
Median 4.500318 Variance 1.85541
Mode 3.990389 Range 26.49940
Interquartile Range 1.40713
Tests … Deviation 2145
Median 812.000 Variance 4599694
Mode 315.000 Range 74833
Interquartile Range 1217
Tests … Table 1
The Univariate Procedure
DISCWT
Moments
Basic Measures of Location and Variability
Tests … For Location
Quantiles
AGE
Moments
Basic Measures of Location and Variability
Tests For Location … Quantiles
Missing Values
TOTCHG_ED
Moments
Basic Measures of Location and Variability
Tests For
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hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2006_MaskedStats_ED.PDF
January 01, 2006 - Electroencephalogram (EEG) 40 0.00
200: Nonoperative urinary system measurements 304 0.00
201: Cardiac stress tests … 1.35227
Median 4.563419 Variance 1.82865
Mode 3.824873 Range 25.11514
Interquartile Range 0.63337
Tests … Data Set WORK.PR_ED1_FREQS
Univariate
DISCWT
Moments
Basic Measures of Location and Variability
Tests
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hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2007_MaskedStats_ED.PDF
January 01, 2007 - Electroencephalogram (EEG) 96 0.00
200: Nonoperative urinary system measurements 1,923 0.01
201: Cardiac stress tests … 1.37334
Median 4.593887 Variance 1.88606
Mode 5.119790 Range 26.49940
Interquartile Range 1.40713
Tests … Table 1
The Univariate Procedure
DISCWT
Moments
Basic Measures of Location and Variability
Tests
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hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2007v2_MaskedStats_ED.PDF
April 09, 2010 - Electroencephalogram (EEG) 102 0.00
200: Nonoperative urinary system measurements 2,191 0.01
201: Cardiac stress tests … 1.40710
Median 4.558561 Variance 1.97993
Mode 5.119790 Range 26.49940
Interquartile Range 1.40713
Tests … Table 1
The Univariate Procedure
DISCWT
Moments
Basic Measures of Location and Variability
Tests
-
hcup-us.ahrq.gov/reports/statbriefs/sb144.pdf
August 01, 2011 - Charges per stay—what hospitals bill patients for their rooms, nursing care, diagnostic tests, procedures … Many hypothesis tests were conducted for this Statistical Brief. … decrease the number of
false-positive results, we reduced the significance level to .001 for individual tests
-
hcup-us.ahrq.gov/datainnovations/clinicalcontentenhancementtoolkit/mn22.jsp
September 01, 2014 - = probability of a positive test given that the patient is ill
Example:
If 100 screening tests … = probability of a negatives test given that the patient is well
Example:
If 100 screening tests
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hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1990_SummaryStats.PDF
January 01, 2023 - 11.48428
Median 4.000000 Variance 131.88880
Mode 2.000000 Range 7307
Interquartile Range 5.00000
Tests … 20.31048
Median 4.000000 Variance 412.51541
Mode 2.000000 Range 35813
Interquartile Range 5.00000
Tests … For Location
Quantiles
Missing Values
LOS
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
TOTCHG
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
TOTCHG_X
Moments
Basic Measures of Location and Variability
Tests
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hcup-us.ahrq.gov/reports/methods/2006_4.pdf
January 01, 2006 - ....................................................20
Utilization Flags – Imaging and Diagnostic Tests … A broad range of services, from simple diagnostic tests to resource-intense procedures, occur in
the … • When some services, such as CT scans and cardiac stress tests, were reported in
revenue codes … • Revenue codes for cardiac stress tests captured 87,000 records. … HCUP (7/14/2006) 21 Utilization Flags
Utilization Flags – Imaging and Diagnostic Tests
CT Scan
CT
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hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_2005_SummaryStats_CORE.PDF
January 01, 2005 - 10.57053
Median 3.000000 Variance 111.73613
Mode 2.000000 Range 7689
Interquartile Range 3.00000
Tests … 49813
Median 11646.00 Variance 2481328741
Mode 1500.00 Range 53530738
Interquartile Range 18613
Tests … For Location
Quantiles
Missing Values
LOS
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
TOTCHG
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
DISCWT
Moments
Basic Measures of Location and Variability
Tests
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hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_2003_SummaryStats_CORE.PDF
January 01, 2003 - 16.55237
Median 3.000000 Variance 273.98088
Mode 2.000000 Range 7598
Interquartile Range 3.00000
Tests … 45312
Median 10070.00 Variance 2053189064
Mode 2222.00 Range 10990389
Interquartile Range 16063
Tests … For Location
Quantiles
Missing Values
LOS
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
TOTCHG
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
DISCWT
Moments
Basic Measures of Location and Variability
Tests
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hcup-us.ahrq.gov/db/nation/kid/tools/stats/KID_2000_SummaryStats_CORE.PDF
January 01, 2000 - 10.02534
Median 2.000000 Variance 100.50752
Mode 2.000000 Range 3475
Interquartile Range 2.00000
Tests … For Location
Quantiles
Missing Values
LOS
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
TOTCHG
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
TOTCHG_X
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
DISCWT
Moments
Basic Measures of Location and Variability
Tests
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hcup-us.ahrq.gov/db/nation/kid/tools/stats/KID_2003_SummaryStats_CORE.PDF
January 01, 2003 - 2.94383
Median 1.593018 Variance 8.66616
Mode 1.913596 Range 63.87475
Interquartile Range 0.50598
Tests … For Location
Quantiles
Missing Values
LOS
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
TOTCHG
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
TOTCHG_X
Moments
Basic Measures of Location and Variability
Tests … Location
Quantiles
Missing Values
DISCWT
Moments
Basic Measures of Location and Variability
Tests
-
hcup-us.ahrq.gov/datainnovations/clinicaldata/FL17LOINCAdvicetoothers.pdf
January 01, 2007 - As new clients join, they initially want to send only the top 100 or 200 tests for mapping, to align
-
hcup-us.ahrq.gov/reports/methods/Comparison_Report_NIS21993Final.pdf
April 03, 1997 - Average Length of Stay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
iii
Tests … Because the MedPAR estimate was based on the entire population, one-sample t-tests were
used. … Since the NHDS estimate was based on a sample, two-sample t-tests were used, as
described in the Appendix … The in-
hospital mortality rates yielded valid significance tests for only 20 categories. … Tests of Statistical Significance
To test for a statistically significant difference between an NIS