-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/rheumatoid-arthritis-medicine_surveillance.pdf
March 01, 2013 - Three were active-controlled clinical trials, six were
systematic reviews with meta-analyses, and nine … Mixed
treatment
comparisons):
No significant differences in
disease activity (ACR 50) in MTC analyses … disease activity (ACR 50) for
anakinra compared with etanercept and
compared with adalimumab in MTC analyses … therapy
and the risk of infection in patients with rheumatoid arthritis: systematic review and meta-
analyses … disease activity (ACR 50) for anakinra compared with
etanercept and compared with adalimumab in MTC
analyses
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/rheumatoid-arthritis-medicine_surveillance.pdf
March 01, 2013 - Three were active-controlled clinical trials, six were
systematic reviews with meta-analyses, and nine … Mixed
treatment
comparisons):
No significant differences in
disease activity (ACR 50) in MTC analyses … disease activity (ACR 50) for
anakinra compared with etanercept and
compared with adalimumab in MTC analyses … therapy
and the risk of infection in patients with rheumatoid arthritis: systematic review and meta-
analyses … disease activity (ACR 50) for anakinra compared with
etanercept and compared with adalimumab in MTC
analyses
-
effectivehealthcare.ahrq.gov/sites/default/files/s131.pdf
October 01, 2007 - Noninformative drop-out causes
bias towards the null in intention-to-treat (ITT) analyses. … For RCTs all restrictions and most subgroup analyses
need to be predetermined because RCTs are by design … In database studies,
several keystrokes will suffice to perform subgroup analyses
to identify modifications … A
meta-analyses of 3 RCTs of pravastatin showed a moderate
overall mortality effect for patients 65 years … The
obvious solution to this problem is to stratify analyses ac-
cording to relevant clinical subgroups
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/insulin-blood-sugar-2010_research-protocol.pdf
January 01, 2010 - To date, no systematic reviews or meta-analyses comparing the
effects of rt-CGM to SMBG have been published … Data Synthesis
We will conduct meta-analyses when there are sufficient data (at least three studies … heterogeneity, we will attempt to determine
potential reasons for this by conducting metaregression analyses … of the asymmetry of funnel plots for each comparison of interest for the outcomes for
which meta-analyses … Measuring inconsistency in meta-analyses. BMJ 2003;327:557-
60.
31. Begg CB, Mazumdar M.
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/copd-research-protocol.pdf
April 11, 2018 - Study design • Original data
• Any sample size
• RCTs
• Relevant systematic reviews,
or meta-analyses … To further explore heterogeneity, we plan to conduct subgroup
11
analyses based on factors … We will conduct sensitivity analyses to
evaluate robustness of our findings by excluding studies with … We will lower SOE grading when sensitivity analyses 1) show substantial difference in
estimates derived … " or "Cox multivariate
analysis" or "Cox regression" or "Cox survival analyses" or "Cox survival analysis
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/renal-function_research-protocol.pdf
June 13, 2013 - Previous
reviews and meta-analyses have investigated the prognostic performance of troponin testing … We will conduct meta-analyses when there are sufficient data and studies are sufficiently
homogenous … the topic, we anticipate the studies to be predominantly observational
in nature, including post-hoc analyses … formula for calculating between-study variance.30
Heterogeneity among the trials in all the meta-analyses … Measuring inconsistency in meta-
analyses. BMJ. 2003 Sep 6;327(7414):557-60. PMID: 12958120.
32.
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/protocol-pharm-pregnant-women_0.pdf
December 05, 2018 - If feasible, qualitative or
quantitative sensitivity analyses may be conducted to gauge the difference … For all analyses, we will use random
effects models to estimate pooled or comparative effects; unlike … To determine whether quantitative analyses are appropriate, we will assess the clinical and
methodological … If
we include any meta-analyses with considerable statistical heterogeneity in this report, we will … When quantitative analyses are not appropriate (e.g., due to heterogeneity,
insufficient numbers of
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/evidence-map-hcbs-protocol.pdf
July 27, 2023 - We will use relevant systematic reviews and meta-analyses to identify additional
existing and new literature … Question 1, we will include RCTs, comparative observational studies, and systematic
reviews/meta-analyses … design • Guiding Question 1:
o RCTs
o Comparative observational studies
o Systematic reviews or meta-analyses
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/cer-250-cannabis-2024-surv-rep-update-tables-f1-2.xlsx
January 01, 2024 - Did the Study Perform Appropriate Statistical Analyses on Potential Confounders (i.e., Age, Sex, Other
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/prosthesis_research-protocol.pdf
March 16, 2017 - congenital amputations, or pediatrics) and they report subgroup
data based on these factors, include analyses … subgroup (thus, N≥20 total) [this
number may change depending on available data]
§ If no subgroup analyses … However, if there are
sufficient similar studies, we will conduct random effects model meta-analyses … explored qualitatively and, if appropriate data are available, we may also conduct
metaregression analyses … The
Newcastle-Ottawa Scale (NOS) for assessing the quality of nonrandomised studies in
meta-analyses
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/renal-function_disposition-comments.pdf
August 11, 2014 - criteria for the outcomes measures and the
statistical methods used were sound and appropriate for the
analyses … Peer reviewer #2 Results Page 21 ES—For conducted meta-analyses, did the authors request
and/or have … Other published meta-
analyses have been conducted that have used even more
heterogeneous criteria, … We believe it is inappropriate to conduct
meta-analyses for the diagnostic criteria
because there were … To
determine if there are any temporal trends,
we sorted the studies included in the meta-
analyses
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/kidney-stone-prevention_research-protocol.pdf
June 15, 2011 - /or outcome
assessor); 3) data completeness (inclusion of all randomized participants in outcomes analyses … 34
).
13
Source: www.effectivehealthcare.ahrq.gov
Published Online: June 15, 2011
For analyses … For all treatments,
subgroup analyses that will be performed if feasible include evaluation of treatment … Direction and impact of language bias in meta-analyses
of controlled trials: empirical study. … Measuring inconsistency in meta-analyses. BMJ
2003 Sep 6;327(7414):557-60.
35.
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/measuring-blood-pressure_disposition-comments.pdf
January 01, 2012 - “These summary estimates remained
essentially unchanged in sensitivity meta-analyses that
included … Those articles
that were found by the search mechanism, but not included in the
actual meta-analyses … “These summary estimates remained
essentially unchanged in sensitivity meta-analyses that
included … “These summary estimates remained
essentially unchanged in sensitivity meta-analyses that
included … In our literature update, we found a study (Bosoworth
2011, FU report on Bosworth 2009) with analyses
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/migraine-emergency_research-protocol.pdf
July 18, 2011 - We will use the random effects model for all meta-analyses
with Review Manager 5.0 software (The Cochrane … Reasons for heterogeneity will be
explored through subgroup analyses and meta-regression (where there … Planned subgroup analyses include age, sex, race, duration of headaches, and nonresponders to
treatment … Sensitivity analyses will be conducted to assess the robustness of the findings across
study quality … The Newcastle-Ottawa Scale (NOS) for assessing the quality
of nonrandomized studies in meta-analyses
-
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/weight-loss-surgery_research-protocol.pdf
December 14, 2010 - We will define loss to follow-up as the number of patients excluded from
efficacy analyses, expressed … (Across a broad array of meta-analyses, an evaluation found
that trials scoring 0-2 report exaggerated … For the efficacy and comparative effectiveness analyses, we will focus on studies
that report outcomes … Since most of the scales used as outcome
measures in the pooled analyses are scored so that more severely … All meta-analyses will be conducted with Stata statistical software, version 8.2
(Stata Corp., College
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/vitamin-d-calcium_research-protocol.pdf
September 13, 2013 - We will also assess the reporting of
intention-to-treat analyses and crossovers when so designed, as … online: June 10, 2013
12
applicable), clear reporting of comparisons in the study, statistical analyses … It is not anticipated
that new meta-analyses will be conducted, based on familiarity with the heterogeneity … Meta-
regressions/sensitivity analyses and subgroup analyses are not anticipated, unless the TEP
recommends
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/worker-health_research-protocol.pdf
May 26, 2015 - We plan to exclude studies deemed high risk of bias from
our main data synthesis and main analyses for … KQ 2; we will include them only in
sensitivity analyses. … Nonetheless, we will consider performing meta-analyses
where we have at least three unique studies of … meta-analysis seems appropriate in these circumstances, we
will perform only random-effects model meta-analyses … can
be narrowed down to a small number of promising factors, we will consider these for
subgroup analyses
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/prostate-cancer-risk-assessment-genes_executive.pdf
July 01, 2012 - review the relevant scientific literature
on topics assigned to them by AHRQ
and conduct additional analyses … identified to address the questions of risk
reclassification or predicted performance in simulation
analyses … aggressive and
nonaggressive disease, and investigators should consider
the possibility for subgroup analyses … Environmental and heritable factors in the causation
of cancer--Analyses of cohorts of twins from Sweden … The Newcastle-
Ottawa Scale (NOS) for assessing the quailty of
nonrandomised studies in meta-analyses
-
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)