-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2000.jsp
January 01, 2000 - The NIS's large sample size enables analyses of rare conditions, such as congenital anomalies; uncommon … Detailed information on the design of the NIS is available in the year-specific special reports on Design … For more detailed descriptions of the sampling design, refer to the year-specific special reports Design … Agreement for the Nationwide Inpatient Sample (PDF file)
/Special Reports
Includes:
Design
-
www.ahrq.gov/sites/default/files/2024-05/berry2-report.pdf
January 01, 2024 - Overall, we aimed for a sample size of 40 participants based on the general rule of
thumb that saturation … sizes are needed to verify this. … Another concern with qualitative research is the small sample size. … Cockpit checklists: Concepts, design, and use. … Mason, M., Sample size and saturation in PhD studies using qualitative interviews.
-
www.ahrq.gov/sites/default/files/wysiwyg/diagnostic/resources/issue-briefs/dxsafety-test-result-communication-apb.pdf
July 01, 2024 - Adolescent Health,
69(6), 873-877
United States D: Cross-sectional
P: Healthcare professionals (sample … size unknown)
S: 7 adolescent health programs in
academic medical centers
Qualitative
summary … Suppl 1), 1154-
1155
Canada D: Retrospective record review
P: Patients with pathology results
(sample … size not specified)
S: Academic medical center
Review of portal
utilization data
and access … size not specified but report states 10
interviews and 3 live observations)
S: Not specified
-
hcup-us.ahrq.gov/db/nation/neds/NEDS2010Introductionv3.pdf
November 01, 2015 - One of the most
distinctive features of the NEDS is its large sample size, which allows for analysis … SAMPLING DESIGN OF THE NEDS
Similar to the design of the Nationwide Inpatient Sample (NIS), the NEDS … A sample size of 20 percent was based on previous experience with
similar research databases. … Collapsed categories used for strata with small sample sizes: (8) Trauma
center level I or II, (9) Trauma … Collapsed categories used for strata with small sample sizes: (8) Metropolitan
(large and small), (9
-
hcup-us.ahrq.gov/db/nation/neds/NEDS2011Introduction01142014.pdf
November 01, 2015 - One of the most distinctive features of the NEDS is its large
sample size, which allows for analysis … SAMPLING DESIGN OF THE NEDS
Similar to the design of the Nationwide Inpatient Sample (NIS), the NEDS … A sample size of 20 percent was based on previous experience with
similar research databases. … Collapsed categories used for strata with small sample sizes: (4) Nontrauma
center or trauma center … Collapsed categories used for strata with small sample sizes: (7) Small
metropolitan and micropolitan
-
hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2009.pdf
January 01, 2009 - One of the most
distinctive features of the NEDS is its large sample size, which allows for analysis … The HCUP Sampling Design tutorial is designed to help users learn how to account for
sample design … A sample size of 20 percent was based on previous experience with
similar research databases. … Collapsed categories used for strata with small sample sizes: (8) Trauma
center level I or II, (9) Trauma … Collapsed categories used for strata with small sample sizes: (8) Metropolitan
(large and small), (9
-
hcup-us.ahrq.gov/db/nation/nass/2019_NASS_Introduction.pdf
January 01, 2019 - • The HCUP Sample Design tutorial is designed to help users learn how to account for
sample design … estimates (encounter universe), tabulated in strata used in the sampling
design. … • Examine the strata with deficient ratios or sample sizes. … The NASS sampling design consists of a stratified, single-
stage cluster sample. … and changes to the design over time
-
meps.ahrq.gov/data_files/publications/mr24/mr24.shtml
September 16, 2010 - previous panel represent the same time period
and the pooling of the two rounds increases the sample … sizes for estimation. … available for the combined sample are
more comprehensive and refined due to the increased sample … size. … sizes large enough to generate reliable estimates.
-
effectivehealthcare.ahrq.gov/sites/default/files/selecting-evidence.ppt
January 01, 2010 - Precision
Includes sample size, number of studies, and heterogeneity of effect sizes
Reporting bias
Extent … (II)
Precision is the degree of certainty surrounding a result and is determined by sample size, number … Few studies have sufficient sample sizes or duration to adequately assess uncommon or long-term harms … size
Defined threshold for risk of bias
Study design restrictions (cohort and case-control)
Specific … These criteria may include minimum duration of followup, minimum sample size, a defined threshold for
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/selecting-evidence.ppt
January 01, 2010 - Precision
Includes sample size, number of studies, and heterogeneity of effect sizes
Reporting bias
Extent … (II)
Precision is the degree of certainty surrounding a result and is determined by sample size, number … Few studies have sufficient sample sizes or duration to adequately assess uncommon or long-term harms … size
Defined threshold for risk of bias
Study design restrictions (cohort and case-control)
Specific … These criteria may include minimum duration of followup, minimum sample size, a defined threshold for
-
meps.ahrq.gov/data_stats/download_data/pufs/h173/h173doc.shtml
December 01, 2016 - Health Interview Survey
2.6.3 Longitudinal Analysis
3.0 Survey Sample Information
3.1 Sample Design … The panel design of the survey, which includes 5 Rounds of interviews
covering 2 full calendar years … Each annual MEPS-HC sample
size is about 15,000 households. … design had a number of features. … Table 1 Sample Allocation
Age categories
Sample Size Females
Sample Size Males
Total
-
www.ahrq.gov/sites/default/files/wysiwyg/policymakers/chipra/factsheets/chipra_1416-p006-1-ef.pdf
March 01, 2016 - measure was developed at the level of the hospital and is appropriate for comparison when sufficient sample … size is available at the hospital, State, regional, and national levels, as well as by payer and provider … Caveats
● This measure may have small sample sizes when multiple stratifications are performed. … values, the median and interquartile range is particularly
robust and therefore valid with smaller sample … sizes.
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/ptsd-6-protocol.pdf
December 07, 2024 - .10,11,13-15 The
PICOTS (Populations, Interventions, Comparators, Outcomes, Timing, Settings, Study Design … on study duration or length of follow up
• Settings:
o No limitation on study setting
• Study Design … , year, setting, country, sample size, eligibility criteria, source(s) of funding, study
characteristics … Characteristics of
included studies, such as number of publications by year, study sample size, proportion … Study Design
7. Subscale/Symptom Cluster Data
8. Subgroup Analysis
9.
-
hcup-us.ahrq.gov/db/nation/nis/NIS_2008_INTRODUCTION.pdf
January 01, 2008 - The NIS' large sample size enables analyses of rare conditions, such as specific
types of cancer; uncommon … The sampling design consisted of a stratified, single-stage
cluster sample. … Hospital Sample Design
Design Considerations
The NIS is a stratified probability sample of hospitals … This sample size was determined by AHRQ based on their
experience with similar research databases. … While this approach was admittedly less efficient, the extremely large sample
sizes yield reliable estimates
-
hcup-us.ahrq.gov/db/nation/nis/NIS_2007_INTRODUCTION.pdf
January 01, 2007 - The NIS' large sample size enables analyses of rare conditions, such as
congenital anomalies; uncommon … The sampling design consisted of a stratified, single-stage
cluster sample. … Hospital Sample Design
Design Considerations
The NIS is a stratified probability sample of hospitals … This sample size was determined by AHRQ based on their
experience with similar research databases. … While this approach was admittedly less efficient, the extremely large sample
sizes yield reliable estimates
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/cystic-fibrosis-hgh_surveillance.pdf
August 01, 2012 - In addition, the study was not published in a pivotal journal, and the sample size
was not larger than … size
Inclusion
Criteria/Exclusio
n Criteria
Study
Design/Intervention
or Independent
Variable … size
Inclusion
Criteria/Exclusio
n Criteria
Study
Design/Intervention
or Independent
Variable … size
Inclusion
Criteria/Exclusio
n Criteria
Study
Design/Intervention
or Independent
Variable … size
Inclusion
Criteria/Exclusio
n Criteria
Study
Design/Intervention
or Independent
Variable
-
hcup-us.ahrq.gov/reports/methods/2005_03_del_379.pdf
January 01, 2005 - Although the smaller sample size rendered NHDS estimates less precise
than NIS estimates, the complete … Because of the limited sample size, valid estimates were not available for
all breakdowns of the NHDS … We must emphasize that the NIS
provides a large sample size that tends to yield estimates with much … Because NIS estimates have greater precision – the
result of the large sample size – it may be preferred … Where a comprehensive geographic representation is more
important than a large sample size, and the
-
www.ahrq.gov/data/resources/index.html?page=4
Its large sample size is ideal for developing national and regional estimates and enables analyses of … One of the most distinctive features of the NEDS is its large sample size, which allows for analysis
-
www.ahrq.gov/sites/default/files/wysiwyg/research/findings/nhqrdr/2022qdr-datasources.pdf
December 01, 2022 - The large sample size in the enables analyses of rare
conditions, uncommon treatments, and special patient … Starting in 2010, funding permitted an increase in
the sample size to allow measurement of EHR adoption … The sample size for
the sample design starting in 2016 (and similar to the sample design coving 2006 … However, because the sample sizes for the NHQDR
measures were relatively large (mostly a few millions … MEPS estimates are suppressed when they are based on sample sizes of fewer than 100,
or when their relative
-
www.ahrq.gov/sites/default/files/wysiwyg/cahps/surveys-guidance/cg/guidance-cg-cahps.pdf
April 01, 2021 - To learn more about the minimum
number of responses needed and the implications for sample size, refer … Calculating the Starting Sample Size
The starting sample size you need to achieve the desired number … Sample Size Calculation: Individual Providers
To have a sufficient number of responses for analysis … Assuming a response rate of 40 percent, you would need to start with a
minimum sample size of 750. … sizes to be recommended for
public reporting.