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Total Results: 1,699 records

Showing results for "sample".

201. Disposition of Comments Report for Comparison of Characteristics of Nursing Homes and Other Residential Long-Term Care Settings for People With Dementia (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/dementia-nursing-home-characteristics_disposition-comments.pdf
     October 23, 2012 - I would like to briefly comment on the discussion of detection bias (lack of blinding) and small sample … PwD) manifests itself with such large inter-person or intra person variability that a really large sample … Sample size is of course also limited by attrition due to death/decline in this population. … of the interventions/exposures of interest, more studies need to be conducted with larger sample sizes … Sample size and design remain important considerations in terms of validity, but we agree that the

202. Cer-238-Cervical-Ripening-Appendix-G (xls file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/cer-238-cervical-ripening-appendix-g.xlsx
     December 18, 2020 - assessments for comparative cohort studies Study Did the study attempt to enroll all (or a random sample

203. Cannabis-2022-Surv-Rep-4-Tables-G1-2 (xls file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/cannabis-2022-surv-rep-4-tables-G1-2.xlsx
     January 01, 2022 - Risk of bias of cannabis cohort studies Author, Year Did the Study Attempt To Enroll All (or a Random Sample

204. Cannabis-2023-Surv-Rep-1-App-G (xls file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/cannabis-2023-surv-rep-1-app-G.xlsx
     January 01, 2023 - Risk of bias of cannabis cohort studies Author, Year Did the Study Attempt To Enroll All (or a Random Sample

205. Cannabis-2023-Surv-Rep-4-Tables-F1-F-2 (xls file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/cannabis-2023-surv-rep-4-tables-F1-F-2.xlsx
     January 01, 2023 - Risk of bias of cannabis cohort studies Author, Year Did the Study Attempt To Enroll All (or a Random Sample

206. Er r or Rate Reduction Regarding Lower Limb Prosthesis (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/pdf/prosthesis_research-protocol.pdf
     March 16, 2017 - • Any study design • No minimum sample size (except not case reports) • No minimum followup time … adverse effects) Study Design • Any study design, including qualitative studies • No minimum sample … of accessing a LLP Study Design • Any study design, including qualitative studies • No minimum sample … exposures, and comparators analyzed; outcome definitions; effect modifiers; enrolled and analyzed sample … These included descriptions of the study design, sample size, interventions, followup duration, outcomes

207. Research White Paper Patient- or Participant-Generated Registries Addendum Registries for Evaluating Patient Outcomes Third Edition (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/wysiwyg/patient-participant-generated-registries-guide-3rd-ed-addendum-white-paper.pdf
     February 01, 2018 - the Agency for Healthcare Research and Quality (AHRQ).7 While the survey represented a very small sample … About half of the registries in the sample are managed by advocacy organizations, with the others managed … While the sample from the PGR was subject to limitations and biases, the analysis provided rapid proof … T-Test to look at differences in progression rate between self-treating participants and a random sample … Other PGRs may validate the diagnosis for a sample of participants using medical record review or contact

208. Breast-Biopsy-Update Executive (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/breast-biopsy-update_executive.pdf
     September 01, 2014 - Core-needle biopsy, which retrieves a sample of tissue, and open surgical procedures are the most frequently … stereotactic guidance, ultrasound guidance, MRI guidance, other guidance, or freehand), how the biopsy sample … Sixty study arms used vacuum- assisted methods to obtain the biopsy sample; 80 used automated methods … MRI-guided biopsies were evaluated in only six studies with small sample sizes, leading to substantial … average and high risk of breast cancer All biopsy methods Insufficient – Few studies provided within-sample

209. Cervical Degenerative Disease Treatment: A Systematic Review | Effective Health Care (EHC) Program
     effectivehealthcare-admin.ahrq.gov/products/cervical-degenerative-disease/research
     February 01, 2024 - In the total NIS sample, 42 percent of participants had radiculopathy alone and 31 percent had myelopathy … (proportions not reported in the matched sample), 66 percent had a CCI of 0, and 84 percent had 1-2 … The large sample sizes available for administrative data may facilitate evaluation of rare outcomes and … Other limitations of our review include the following: lack of RCT data for many comparisons and small sample … for publication bias using graphical or statistical methods to evaluate any potential impact of small sample

210. Core-Needle Biopsy for Breast Abnormalities | Effective Health Care (EHC) Program
     effectivehealthcare-admin.ahrq.gov/products/breast-biopsy-update/clinician
     December 01, 2019 - Core-needle procedures, which remove a small tissue sample through a very small incision, have been widely

211. Updating the Framework and Measurement Criteria for AHRQ's National Healthcare Quality and Disparities Report | Effective Health Care (EHC) Program
     effectivehealthcare-admin.ahrq.gov/products/collections/ahrq-nhqdr
     October 01, 2023 - disparities/equity Update the criteria for evaluating benchmarking In each topic brief, pilot a sample

212. Cannabis-2024-Update-Appendix-F (xls file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/cannabis-2024-update-appendix-f.xlsx
     January 01, 2024 - Risk of bias of cannabis cohort studies Author, Year Did the Study Attempt To Enroll All (or a Random Sample

213. Grades-Predictive-Values White-Paper-2015 (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/pdf/grades-predictive-values_white-paper-2015.pdf
     January 01, 2015 - The objective of our methods project was to use a diverse sample of medical interventions to assess … Results of stratified analyses based on sample size, risk of bias, and magnitude of effect estimates … First, the size of our sample was limited. … Second, how representative our sample is remains unclear. … Influence of trial sample size on treatment effect estimates: meta- epidemiological study.

214. Serum Free Light Chain Analysis for the Diagnosis, Management, and Prognosis of Plasma Cell Dyscrasias: Future Research Needs (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/pdf/plasma-cell-dyscrasias-sflc-assay-future_research.pdf
     September 01, 2012 - Studies should have a priori calculation of the sample size needed for determination of the desired … Sample size not an issue, in spite of the relatively low prevalence of PCDs, because the cohorts would … Resource use likely to be moderate; sample size would depend on number of respondents. … The feasibility of such studies generally does not depend on the desired sample size. … Studies should have a priori calculation of the sample size needed for determination of the desired

215. Cervical Ripening in the Outpatient Setting | Effective Health Care (EHC) Program
     effectivehealthcare-admin.ahrq.gov/products/cervical-ripening/research
     March 01, 2022 - Inconsistency (using I 2 ) and small sample size bias (publication bias, if ≥10 studies) were assessed … Limitations of the evidence include the quantity, quality, and sample sizes of trials for specific interventions

216. Use of Natriuretic Peptide Measurement in the Management of Heart Failure | Effective Health Care (EHC) Program
     effectivehealthcare-admin.ahrq.gov/products/heart-failure-natriuretic-peptide/research-protocol
     December 01, 2019 - Prior to performing the data extraction, a calibration exercise will be conducted using a random sample … The following will also be extracted: blood sample type for BNP measurement (plasma or serum) , assay … Prognosis Papers: Hayden Criteria Study Participation Yes/No/Unsure The study sample … Study Attrition Loss to follow-up (from sample to study population) is not associated with … key characteristics (i.e., the study data adequately represent the sample), sufficient to limit potential

217. Comparative Effectiveness Review Disposition of Comments Report: Anxiety in Children (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/disposition-of-comments-cer-192-anxiety-in-children.pdf
     August 31, 2017 - When there is a sufficient sample of studies we examine disorders separately. … that only includes patients with one of these presenting problems against a sample that includes … “other” comparison as there is not a sufficient sample of homogenous “other interventions” to examine … “other” comparison as there is not a sufficient sample of homogenous “other interventions” to examine … “other” comparison as there is not a sufficient sample of homogenous “other interventions” to examine

218. Plasma-Cell-Dyscrasias-Sflc-Assay Executive (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/plasma-cell-dyscrasias-sflc-assay_executive.pdf
     August 01, 2012 - Followup times varied from 3 months to 13 years, with sample sizes of 40 to 399 patients. … of limitations in study design, including selection/ spectrum bias as well as (in one study) small sample … without adjustments for potential confounders and as C in the other five studies because of their small sample … performance of the SFLC assay varies depending on the type and distribution of PCDs in the study sample … Studies should have an a priori calculation of the sample size needed to determine the desired precision

219. Depression Treatment after Unsatisfactory Response to SSRIs when used as First-line Therapy | Effective Health Care (EHC) Program
     effectivehealthcare-admin.ahrq.gov/products/depression-treatment-ssri/research-protocol
     December 01, 2019 - Sample size: There are no restrictions for study sample size. … Prior to performing the data extraction, a calibration exercise will be conducted using a random sample … data will include study characteristics (e.g., first author, country of research origin, study design, sample … size, sample size calculation or power estimate); clinical indications; and study duration or length … episodes of depression, age of first diagnosis, etc.), study outcomes (both of benefit and of harm), sample

220. Comparative Effectiveness of Interventions for Adolescents and Young Adults With Autism Spectrum Disorders | Effective Health Care (EHC) Program
     effectivehealthcare-admin.ahrq.gov/products/autism-adolescents/research-protocol
     December 01, 2019 - selected this study size based on a previous review of therapies for children with ASD, which used a sample … A cutoff sample size of 20 provides a balance, allowing us to review and comment on adequate literature … In particular, the TEP noted that a sample size of 20 for studies of all types of interventions (e.g. … , medical, behavioral, etc.) takes into account the typically smaller sample sizes in the ASD literature … of publication, study location (e.g., country, city, state) and time period, population description, sample