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effectivehealthcare.ahrq.gov/sites/default/files/cf_deliberativemethodswebinar_recruiting.pdf
May 29, 2025 - Medicine and
Health Management and Policy
University of Michigan
1
Alternatives to Random Sampling … inclusion of those who
tend to be poorly represented in policy
decisions
2
Alternatives to Random Sampling … Internal Medicine and �Health Management and Policy �University of Michigan �
Alternatives to Random Sampling … Alternatives to Random Sampling (cont.)
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effectivehealthcare.ahrq.gov/sites/default/files/pdf/asthma-immunotherapy-2011_research.pdf
January 01, 2011 - Assessment of sampling bias 6±2
3. Estimation of sampling bias 6±2 3. … in total
sample
Not reported
Sampling: Assessment of sampling bias No information about sampling … Sampling: Assessment of sampling bias No information about sampling bias
Article: ______________
Evaluator … sampling bias No information about sampling bias
Estimation of sampling bias: Addressing sampling … Estimation of sampling bias: Addressing sampling bias Not reported
Assessment of sampling bias
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effectivehealthcare.ahrq.gov/sites/default/files/delilberative-methods-design-goold.pdf
May 29, 2025 - Medicine and
Health Management and Policy
University of Michigan
Slide 11
Alternatives to Random Sampling … those who tend to be poorly represented in policy decisions
Slide 12
Alternatives to Random Sampling
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effectivehealthcare.ahrq.gov/sites/default/files/pdf/renal-cancer_clinician.pdf
July 01, 2017 - Percutaneous renal mass sampling of solid masses may be
offered as a diagnostic adjunct to imaging studies … Percutaneous renal mass sampling can be
performed by fine needle aspiration or core biopsy. … factors that are
statistically significantly associated with malignancy.
�� Percutaneous renal mass sampling … Percutaneous renal mass sampling (see Appendix Table 2):
�� Studies of percutaneous renal mass sampling … 14 percent (���).
�– The most common direct complications associated with
percutaneous renal mass sampling
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effectivehealthcare.ahrq.gov/sites/default/files/renal-cancer_executive.pdf
February 01, 2016 - KQs 2a and 2b: Accuracy and Harms
of Percutaneous Renal Mass Sampling
Twenty studies (2,979 patients … Therefore, the strength of evidence for diagnostic accuracy
of renal mass sampling (core biopsy) was … More clinical research is needed to
better elucidate the utility of renal mass sampling. … in any recommendation regarding
the standard use of renal mass sampling. … Renal mass sampling is a
safe and sensitive procedure, but has a high nondiagnostic
rate.
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/renal-cancer_research-protocol.pdf
April 20, 2015 - be invasive, but small peripheral tumors may also be invasive.[16, 22]
Percutaneous renal mass sampling … Renal mass sampling can be done by fine needle aspiration with a reading
of the sample by a cytopathologist … In addition, percutaneous sampling can be performed by diagnostic radiologists,
interventional radiologists … systematic
review of the evidence on how well malignancy can be predicted using percutaneous renal
sampling … We
anticipate that evidence on the predictive value of renal mass sampling and composite profiles
most
-
effectivehealthcare.ahrq.gov/sites/default/files/s158.pdf
October 01, 2007 - are: (1) better representativeness
of the main study and (2) possible efficiency gains based on
over-sampling … Most published work on efficiency gains by different non-
random sampling strategies (eg, counter-matching … justed overall estimate.35
The main disadvantage of an internal validation study
based on nonrandom sampling … Sampling and estimation for covari-
ate effects when both exposure and disease are known. … Sampling strategies in nested case-control
studies.
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/TND-0710-140625.pdf
January 08, 2014 - thermal ablation (e.g., radiofrequency ablation, cryoablation), active
surveillance, and renal mass sampling
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effectivehealthcare.ahrq.gov/sites/default/files/transcript_deliberativemethodswebinar.pdf
April 19, 2012 - to think
about in terms of whether or not you should use random
sampling.
16
When … So, in other words, you don’t even have good random
sampling most of the time when you have some kind … So that’s another
sort of, “why not random sampling”. … So that is if you are recruiting
or sampling or going out and trying to get people to
participate … They may have been selected through -- could
be a random sampling, it could be through many of the
-
effectivehealthcare.ahrq.gov/sites/default/files/estimation-and-reporting_chapter-3.pptx
January 01, 2013 - Possible, but not essential since the goal is not to test hypotheses Not essential
Characterization of sampling … error of the statistical estimator Easy to achieve Possible Difficult to characterize sampling properties … A major problem with these analyses is that it is extremely difficult to obtain the sampling properties
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effectivehealthcare.ahrq.gov/sites/default/files/web-based_dubenske_presenter.pdf
January 01, 2009 - Incident
Interviews
o Survey
Instruments
• Key
considerations:
o Appropriate
sampling
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effectivehealthcare.ahrq.gov/sites/default/files/study-design-considerations-chapter-2.pptx
January 01, 2013 - This sampling needs to be accounted for in the analysis, but otherwise this design offers all the advantages … Instead of sampling controls, we create a separate observation for each case that contains all the same … Case-control study proposals should clearly describe the control sampling method, employ a new-user design … Case-cohort study proposals should include how the sampling scheme will be accounted for during analysis
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effectivehealthcare.ahrq.gov/sites/default/files/ch_2-user-guide-to-ocer_130129.pdf
January 01, 2011 - Given proper sampling of controls
from the risk set, the estimation of the odds ratio
in a case-control … Sampling of controls from all those who
enter the cohort (i.e., at baseline) may lead to
biased estimates … be at risk for the outcome on their index
date, thus ensuring that bias was not introduced
via the sampling … This sampling
needs to be accounted for in the analysis,20 but
otherwise this design offers all the … Instead of sampling controls, we create a separate
observation for each case that contains all the
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effectivehealthcare.ahrq.gov/sites/default/files/pdf/breast-biopsy-update_research-protocol.pdf
September 20, 2013 - suggests that the abnormality may be breast cancer, the woman may be
referred for a biopsy, which is a sampling … 20, 2013
5
o For KQ 2:
Rate of inconclusive biopsy findings (e.g., inadequate sampling … Retrospective case studies (“case series”12) and other studies sampling patients on the basis
of outcomes … Design
characteristics include methods of population selection and sampling and followup duration. … the appropriate tissue, the needle is
withdrawn and the tissue sample ejected from the needle into a sampling
-
effectivehealthcare.ahrq.gov/sites/default/files/hesse.pdf
January 01, 2010 - stumbling blocks to discovery (e.g., recruitment)
o Improve “n”/power
• Tensions
o Need to update sampling
-
effectivehealthcare.ahrq.gov/sites/default/files/manges.pdf
May 29, 2025 - We're
doing a lot of sampling.
-
effectivehealthcare.ahrq.gov/sites/default/files/pregnancy_hi_impact.pdf
January 01, 2012 - amniotic fluid surrounding the fetus in utero) or chorionic villus sampling (harvesting
placental … it expects reimbursement for the test to
be similar to that for amniocentesis or chorionic villus sampling … 449 samples from a high-risk population were tested using
the Sequenom assay with chorionic villus sampling … it expects
reimbursement for the test to be similar to that for amniocentesis or chorionic villus sampling … amniotic fluid surrounding the fetus in utero) or chorionic villus sampling (harvesting placental
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/colon-cancer-gene-profiling_disposition-comments.pdf
December 14, 2012 - ColoPrint for Colon Cancer Prognosis and
Prediction,” dated 01 June 2012; Agendia ColoPrint Specimen Sampling … (Supportive Literature:
Agendia ColoPrint Specimen Sampling Instructions). … #1 PR Summary Page 21 line 52, although sampling is one reason for low LN counts, there
are other … Detail added that this can be
due to sampling at surgery or
extent of pathological review
#5 KI Summary
-
effectivehealthcare.ahrq.gov/sites/default/files/renal-cancer_disposition-comments.pdf
February 24, 2016 - Executive Summary Introduction Section Page 15: (Diagnostic
Evaluation) Would change from “sampling … is offered” to “sampling may
be offered” as this is not routinely carried out and omission of
biopsy … Abstract - I disagree with the conclusion percutaneous renal mass
sampling with core biopsy is a safe … Therefore, the strength of
evidence for diagnostic accuracy of renal mass sampling was graded
as moderate … Peer Reviewer
#1
Conclusion Conclusions: I believe characterizing renal mass sampling as "safe"
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effectivehealthcare.ahrq.gov/sites/default/files/ch_3-user-guide-to-ocer_130129.pdf
September 21, 2012 - A major problem with these analyses is that
it is extremely difficult to obtain the sampling
properties … , but not essential
since the goal is not to test
hypotheses
Not essential
Characterization of
sampling … error of the
statistical estimator
Easy to achieve Possible Difficult to characterize
sampling properties