-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/methods-guide-editorial_methods.pdf
July 01, 2012 - EPCs conduct reviews for use by a variety of groups, including
national guideline groups such as the … Reviews; hereinafter called the General Methods
Guide).8 This guidance, along with those of other groups
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/disruptive-behavior-disorder_clinician.pdf
August 01, 2016 - disruptive
behaviors
11
(8 RCTs;
3 cohorts)
1329 ��Consistently improved in the intervention groups … Parent-rated
child disruptive
behaviors
13
(12 RCTs;
1 cohort)
1486 �� Improved in the intervention groups … , quetiapine)
Disruptive
behaviors
3
(3 RCTs)
374 ��Significantly improved in the intervention groups
-
effectivehealthcare.ahrq.gov/sites/default/files/product/pdf/methods-guide-inclusion-nonrandomized-studies.pdf
September 01, 2022 - The randomization of study participants to treatment and comparator groups, when allocation is
concealed … When properly executed, the
randomization process helps ensure that the study groups are comparable … Cross-sectional
studies are non-experimental and may allow the comparison of groups of participants … Confounding
NRSIs may be subject to a high risk of confounding if the treatment and comparator groups … The second difference (between-group) controls for time-varying factors
that are common across groups
-
effectivehealthcare.ahrq.gov/sites/default/files/wysiwyg/pdf/methods-guide-inclusion-nonrandomized-studies.pdf
September 01, 2022 - The randomization of study participants to treatment and comparator groups, when allocation is
concealed … When properly executed, the
randomization process helps ensure that the study groups are comparable … Cross-sectional
studies are non-experimental and may allow the comparison of groups of participants … Confounding
NRSIs may be subject to a high risk of confounding if the treatment and comparator groups … The second difference (between-group) controls for time-varying factors
that are common across groups
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/dcis-prognostic-tests_research.pdf
August 22, 2012 - rates of this testing increased
between 2004 and 2007 in both DCIS and
early invasive breast cancer groups … Rates of testing varied significantly across
race groups for all tests. … Among women with DCIS, black women
were less likely to have ER/PR testing than other racial
groups … The percentage of women
with ER+ tumors was similar for the DCIS and invasive
cancer groups. … Second, the esti-
mated rates of testing for both groups will be biased downward, because
our cohort
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/long-term-care-adults-future_research.pdf
July 01, 2013 - We
engaged consumer and provider groups, including AARP and the National Center for Assisted
Living … , because the decisional dilemmas faced by these groups are critical to identifying and
prioritizing … A total of 13 stakeholders across
these groups responded to our invitation and expressed an interest … We engaged consumer and provider groups, including AARP and the National
Center for Assisted Living … Participating stakeholders included representatives from all groups that we
engaged in the process.
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/asthma-education-protocol.pdf
January 01, 2018 - o Interviews, focus groups, other qualitative or quantitative evaluation
techniques
• What new types … Should other groups of professionals play a greater or
different role in delivering AS-ME? … descriptions and evaluations of AS-ME packages implemented by individual
hospitals, health systems, provider groups … We will not require that studies have control groups. … Daines L, Pearce G, Epiphaniou E, Bower P, Sheikh A, Griffiths
CJ, Taylor SJ, PRISMS and RECURSIVE groups
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/cer-218-osteoporosis-fracture-prevention-evidence-summary.pdf
April 01, 2019 - have led to the suggestion that bisphosphonate
treatment be discontinued periodically.9 Several
groups … †Results reported for raloxifene 60 mg/d and 120 mg/day groups pooled together. … varied widely
between studies, likely due to heterogeneity in case
definitions, treatment control groups … discontinuation, the absolute number of events was
low and possible differences between treatment
groups … continuation and
discontinuation arms in one trial reporting because
harms results for these two groups
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/screening-counseling-interventions-protocol-amendment.pdf
February 05, 2025 - burden of
these disorders.8
Federal Government” mention of
gender identities or sexual orientation
groups … as specific high risk groups has
been removed
2/5/2025 Key questions gender identity, and
sexual … Restoring Biological Truth to the
Federal Government” mention of
gender identities or sexual orientation
groups … as specific high risk groups has
been removed
2/5/2025 Table 1,
PICOTS
gender/sex identity,
sexual … as specific high risk groups has
been removed
VIII.
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/selecting-evidence.ppt
January 01, 2010 - For example, the process of assigning individuals to different groups may be inappropriate when patient … Selection bias is bias resulting from the formation of comparison groups. … Detection bias refers to systematic differences in outcome assessments among the comparison groups. … Attrition bias refers to systematic differences among comparison groups in the loss of participants from … Confounding by Indication
Confounding by indication is a type of selection bias that occurs when groups
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/preterm-birth-terbutaline-pump_disposition-comments.pdf
September 01, 2011 - Methods
(Data
Synthesis
and
Analysis)
Given discordance in pathogeneses between these two groups … was
kept constant…”
(3) Seems like patients had phone contact
with nurse
“Patients in all three groups … While the data speaks for itself,
all of them had different methods and different cohort groups which … We rated
it as such because an important flaw was that
the
groups were not comparable (with
respect … In cohort groups the patients necessarily do not receive
this level of maternal care.
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/congestive-heart-failure-medicines_research.pdf
March 01, 2010 - However, the effectiveness of H-ISDN in a community sample of African-Americans
and other racial/ethnic groups … Comorbidities were identified in the year prior to HF diagnosis according to groups of
ICD-9 codes described … with statistically significant and clinically important reductions in mortality in all
racial/ethnic groups … our sample who lacked racial or ethnic identifiers, as well
as individuals from other racial/ethnic groups … Drug exposure risk windows and
unexposed comparator groups for cohort
studies in pharmacoepidemiology
-
effectivehealthcare.ahrq.gov/sites/default/files/selecting-evidence.ppt
January 01, 2010 - For example, the process of assigning individuals to different groups may be inappropriate when patient … Selection bias is bias resulting from the formation of comparison groups. … Detection bias refers to systematic differences in outcome assessments among the comparison groups. … Attrition bias refers to systematic differences among comparison groups in the loss of participants from … Confounding by Indication
Confounding by indication is a type of selection bias that occurs when groups
-
effectivehealthcare.ahrq.gov/sites/default/files/haller.pdf
May 29, 2025 - We're living in an age where a
lot of groups or ethnic groups and minority groups are actually using … And also there's forms of online communities that are used for focus
groups where you don't bring people
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/antibiotics-respiratory-infection_research-protocol.pdf
September 22, 2014 - pediatric patients with acute RTI, healthy adults and/or children without a
current acute RTI, or groups … as applying to
patients versus a broader population (e.g. the general public, or targeted healthy groups … group together studies that use similar
definitions of appropriateness and categorize the different groups … groups,!such!
as!employers!or!
school!officials!
Intermediate!Outcomes!
! Improved!patient! … methods used for randomization, allocation concealment, and blinding; the similarity of
compared groups
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/version-2-risk-of-reinfection-from-SARSCoV2_0.pdf
December 31, 2022 - Selection bias could spuriously drive
effect size up or down if some groups in the target population … (16.92 per 100,000 person-
days versus 27.42 to 38.13 in the younger groups.) … Additionally, three studies will include groups
of vaccinated individuals in their cohorts. … Were the two groups similar and recruited from the same population?
2. … Were the exposures measured similarly to assign people to both exposed and unexposed groups?
3.
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/glaucoma-treatment_surveillance.pdf
January 01, 2013 - Other Experts
Conclusion from
SCEPC
significant differences in
IOP reduction between
the two groups … trabeculectomy
with MMC vs. 5FU
showed 1 case each of
blebitis and
endophthalmitis in in both
groups … OR randomized [tiab] OR
placebo [tiab] OR drug therapy [sh] OR randomly [tiab] OR trial [tiab] OR groups … Frequency of postop complications was
similar between groups
Dahan 201222
Prospective randomized … ; survival analysis indicated time
to 50% failure was similar in both
groups.
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/hepatitis-c-treatment-adherence_executive.pdf
September 22, 2011 - The study did not report statistical tests of changes
over time or of differences between groups. … Among
genotype 1 patients, SVR rate did not differ between
groups. … Patients in the intervention groups
had approximately 50-percent higher odds of adhering
to therapy … or continuing with treatment at 24-48 weeks
compared with control groups. … The reasons patients did not finish recommended
treatment did not differ between the two groups and
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/depression-pregnancy-postpartum_disposition-comments.pdf
July 08, 2014 - However, one
wonders about the selection of those groups as the gold
standard. … While we think of a comparison of these two
groups as adequately controlling for the effects of
depression … Comparing
those two groups may not be substantially different than
comparing women with a history of … TEP Member
#9
Methods well laid out. especially issues related to comparability of
specific groups … Neither showed statistically significant
differences between groups, although the study size makes
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/public-reporting-quality-improvement_research-protocol.pdf
August 17, 2011 - lead to change in health care delivery structures or processes (at levels
of individual providers, groups … • We will evaluate trials in terms of how the intervention and comparison groups were
constructed … (e.g., randomization), the comparability of the groups at baseline and
throughout the study (including … observational studies will focus on
potential bias in the construction of comparisons (either across groups … If this
is not possible, we will use qualitative groups of public reporting interventions to identify