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effectivehealthcare.ahrq.gov/sites/default/files/related_files/cer-224-depression-children-comments.pdf
April 10, 2020 - Wagner et al present
pooled analyses of RCTs (ineligible
design) and did not present individual
estimates … These subgroup
analyses, when available, were generally
hypothesis generating because studies
were … and
require confirmation from larger
preplanned analyses.” … and
require confirmation from larger
preplanned analyses.” … Point applies to many of the
outcomes examined, I wonder whether better to leave these analyses
out
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/methods-guidance-tests-applicability_methods.pdf
July 01, 2012 - Conducting subgroup analyses after appraising the included studies may introduce type 1
error (i.e., … − Include
presence/absence
as parameter in
meta-regression or
sensitivity analyses. … − Model cut-offs and
conduct sensitivity
analyses.
Comparator Use of gold standard
vs. … identify these factors ahead of time and justify when to “split” questions or to
conduct subgroup analyses … should
prompt consideration of using timeframes as criteria for inclusion or careful descriptions and
analyses
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/ear-infection_disposition-comments.pdf
May 04, 2013 - Analyses by
Paradise et al. suggest that mild hearing loss in
preschool children for periods of up … This phrase was written in relation to meta-
analyses that were described by the authors as
combining … but
we include a number of pooled analyses that were
conducted by the earlier Cochrane studies. … were not appropriate, we did all
analyses qualitatively. … Evidence used in the synthesis included the
results from the earlier meta-analyses, additional data
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/cad-women-treatment-future_research.pdf
February 01, 2013 - review the relevant scientific
literature on topics assigned to them by AHRQ and conduct additional analyses … ; also possible would be meta-
analyses of all existing clinical trials with patient-level data to more … Analyses suggested a benefit of CABG (OR, 0.62; 95% CI,
0.31 to 1.24) or either PCI or CABG (OR, 0.71 … A search of PubMed for relevant systematic reviews and meta-analyses included in
our original search … Many of the same issues inherent in meta-analyses
of RCTs (both study-level and patient-level data)
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/allergy-seasonal_research-protocol.pdf
March 08, 2012 - with
activities of daily living and/or sleeping)
Results of existing systematic reviews and meta-analyses … Years of Age or Older
Comparative adverse effects reported in the RCTs, systematic reviews, meta-analyses … Additionally, systematic reviews and
meta-analyses that specifically assess adverse events associated … Inclusion criteria for RCTs, observational studies, systematic reviews, and meta-
analyses are as outlined … appropriate (e.g. missing data, sensitivity analyses)
Appendix C
Deeks criteria for nonrandomized
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/sleep-apnea_executive.pdf
July 01, 2011 - We performed
subgroup meta-analyses based on study design (parallel
or crossover), minimum AHI threshold … Analysis of difference versus average
analyses plots suggest that substantial differences in the
measured … Very few trials reported
subgroup analyses based on baseline characteristics,
and for most comparisons … Such analyses were
feasible for the comparison between CPAP and control,
where subgroup meta-analyses … Other frequent methodological problems with
studies included incomplete reporting and/or inadequate
analyses
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/tonsillectomy-disposition-170415.pdf
January 17, 2017 - Stating the post-tonsillectomy bleeding (PTH)
was "low (<4% in meta-analyses)" does not make
sense, … We have revised this text to note that bleeding
rates were less than 4% in meta-analyses and
have added … We agree that additional data are
needed to inform analyses and have added a
statement to the research … We did not identify studies or analyses explicitly
focused on this population, though some studies … after sensitivity analyses showed no significant
effects.
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/pneumonia-antibiotic-treatment_research-protocol.pdf
July 19, 2013 - We plan to omit studies deemed to have high risk of bias from our main
data synthesis and main analyses … ; we will include them only in sensitivity analyses. … In order
to determine whether quantitative analyses are appropriate, we will assess the clinical and … If sufficient data are available, meta-analyses and results will be stratified by (1) method of
PK/PD … Measuring inconsistency in meta-analyses. BMJ.
2003 Sep 6;327(7414):557-60. PMID: 12958120.
33.
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/psoriasis-chronic_executive.pdf
November 01, 2012 - Meta-analyses
that used methods to indirectly compare interventions
of interest, including adjusted … indirect comparisons or
network meta-analyses, were included and summarized
qualitatively for all … Identified
network meta-analyses from the second literature search
were qualitatively described in … There were no previously conducted traditional
meta-analyses identified by our literature search that … Future analyses using indirect comparisons may also help
supplement lack of direct comparative data.
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/omega-3-maternity_executive.pdf
October 01, 2016 - were
performed in R 3.2.0.16
New trial results were added to original meta-analyses,
when appropriate … Pooled analyses of four RCTs also found no significant
effects of fish oil supplementation (DHA+EPA) … None of
the analyses showed evidence for publication bias. … Across RCTs, the most common risk-of-
bias limitation was a lack of intention-to-treat analyses
(54 … Measuring
inconsistency in meta-analyses. BMJ. 2003 Sep
6;327(7414):557-60. PMID: 12958120.
16.
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/obesity-child_disposition-comments.pdf
June 10, 2013 - It is true that the pooled analyses were not significant for either BMI or BMI
z-score. … State # of studies for which
pooled analyses were possible. … Do these studies
note up front which analyses were primary? … We describe in the methods section our rationale for including studies in the
meta-analyses. … We analyzed the last reported time point for studies that were eligible for
the meta analyses.
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/liver-cancer_executive.pdf
October 01, 2014 - Data Synthesis
We performed meta-analyses on measures of test
performance in order to help summarize … data and obtain
more precise estimates.15 All quantitative analyses were
conducted using SAS® 9.3 … We conducted separate analyses for each imaging
modality, stratified according to the unit of analysis … We
performed analyses stratified according to the reference
standard used and on domains related to … Conclusions were generally robust on sensitivity and
stratified analyses based on study factors such
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/medication-therapy-management_executive.pdf
November 01, 2014 - We excluded studies that we deemed at high risk of bias
from our main data synthesis and main analyses … For all
analyses, we used random-effects models to estimate
pooled or comparative effects. … When quantitative analyses were not appropriate (e.g.,
because of heterogeneity, insufficient numbers … No meta-
analyses included more than five studies; as a result, we
did not examine included studies … US
pharmacists’ effect as team members on patient care: systematic
review and meta-analyses.
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/asthma-treatment_executive.pdf
May 01, 2011 - We used Stata 11.2® for all effect size calculations
and meta-analyses (Stata Corp., College Station … characteristics.22,30,41 Subgroup
analyses were not described as being planned a priori, but
were … • Exploratory analyses suggest that comprehensive
approaches, especially those including additional … These analyses were purely exploratory
and did not account for effect size, so should be considered … Subgroup analyses of teens and/or emerging
adults were not reported.
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/disparities-quality-improvement_executive.pdf
August 01, 2012 - review the relevant scientific literature
on topics assigned to them by AHRQ
and conduct additional analyses … When possible to identify,
analyses resulting from the same study were grouped
together. … Studies by Clinical Condition
Cancer
Five RCTs with subgroup analyses explored the effects
of various … Racial disparities
were of interest in all three, but interim analyses were
also performed based on … The Newcastle-Ottawa
Scale (NOS) for Assessing the Quality of Nonrandomised
Studies in Meta-Analyses
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/AI-tools-protocol.pdf
August 15, 2023 - ”)
• Exclude: Usability analyses
Study Designs
• Primary studies
• Systematic reviews, to be … source of citations
• Exclude: narrative (non-quantitative) summaries, usability studies
• Exclude: Analyses
-
effectivehealthcare.ahrq.gov/sites/default/files/cer-240-acute-pain-evidence-summary.pdf
December 01, 2020 - Meta-
analyses were conducted on pharmacologic therapy for dental pain and kidney stone pain
and likelihood … Otherwise, meta-
analyses were not conducted due to small number of studies, methodological limitations
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/cognitive-decline-disposition-170707pdf.pdf
March 24, 2017 - Systematic reviews and subsequent
meta-analyses are meant to facilitate an evaluation of
the totality … Individual differences analyses need to
be run (for example K-means cluster). … We could not perform
meta-analyses because the cognitive measures
were too diverse; they did not even … Which and how many of
these studies are actually included in the analyses? … Modern
methods of handling missing data, in particular
propensity score weighted analyses (in which
-
effectivehealthcare.ahrq.gov/sites/default/files/cognitive-decline-disposition-170707pdf.pdf
March 24, 2017 - Systematic reviews and subsequent
meta-analyses are meant to facilitate an evaluation of
the totality … Individual differences analyses need to
be run (for example K-means cluster). … We could not perform
meta-analyses because the cognitive measures
were too diverse; they did not even … Which and how many of
these studies are actually included in the analyses? … Modern
methods of handling missing data, in particular
propensity score weighted analyses (in which
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/vaccine-safety_research-protocol.pdf
September 18, 2012 - Partners Inc., Ottawa, Ontario, Canada),21
which is designed specifically for systematic reviews and meta-analyses … Analyses will be conducted with
Stat Xact Procs for SAS.23
Unless statistical power is adequate, … subgroup analyses will be narrative in order to be able to
make comparisons between study designs and … assessed for
quality, and analyzed) as one study to ensure that the same participants do not enter the analyses … control/comparison group such as population surveillance, retrospective and
prospective cohorts, and analyses