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Showing results for "design sample size".

621. Disposition of Comments Report for Evidence Report/Technology Assessment No. 214 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/smoking-pregnancy-infants_disposition-comments.pdf
     February 25, 2014 - = 0.30) the sample size per E + C Group. … The justification for this unacceptable sample size criteria in the Report makes no sense. … (See CDC Epi-Info/Estimation of sample sizes + Fleiss). … Although it is commonly used, a minimum sample size of 50 has no intrinsic value as a cutoff. … The 29 “Good + Fair” studies, excluding the deleted evaluations with small sample sizes, would be the

622. Transparency of Reporting Requirements: Effectiveness of Treatments Options for the Prevention of Complications and Treatment of Symptoms of Diabetic Peripheral Neuropathy (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/transparency-neuropathy_research-protocol.pdf
     September 01, 2016 - To estimate the number completed, we then added criteria to limit by study design, status and crudely … Preliminary data extraction elements: Trial design Design (randomized?) … Reasons for delays (if any) Population Total enrollment, sample size in each arm, drop-outs Participants … • Comparison of prespecified statistical plan • Sample sizes, total and per arm.

623. Kim J et al. 2005 "Development and initial testing of a computer-based patient decision aid to promote colorectal cancer screening for primary care practice." | Digital Healthcare Research
     digital.ahrq.gov/health-it-tools-and-resources/workflow-assessment-health-it-toolkit/research/kim-j-et-al-2005
     January 01, 2005 - Informational resource Type of Health IT Functions The educational resource is modular in design … Study Design Only postintervention (no control group) Study Participants A convenience sample

624. Layout 1 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/registries-guide_executive.pdf
     April 01, 2007 - Once these key design items have been determined, the registry design should be reviewed to evaluate … The term “quality” can be applied to registries to describe the confidence that the design, conduct, … Design • The literature has been reviewed to guide appropriate data collection. … effect, should one exist, or achieve a desired level of precision is specified, whether or not the sample … size requirement is met

625. Trends in Hospital Inpatient Stays by Age and Payer, 2000-2015 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb235-Inpatient-Stays-Age-Payer-Trends.pdf
     December 01, 2016 - The redesign incorporates two critical changes: • Revisions to the sample design—starting with 2012 … by reducing sampling error: for many estimates, confidence intervals under the new design are about … half the length of confidence intervals under the previous design. … The change in sample design for 2012 necessitates recomputation of prior years' NIS data to enable analyses … For a detailed description of HCUP and more information on the design of the National (Nationwide) Inpatient

626. Targeting Medication Nonadherence Using Mobile Phone-Based Tailored Messaging - FInal Report (pdf file)
     digital.ahrq.gov/sites/default/files/docs/citation/r36hs021976-gatwood-final-report-2014.pdf
     January 01, 2014 - First, the sample size was far smaller than had been anticipated and desired, limiting our statistical … It should be noted that these results should be taken with caution as the small sample size of subjects … More importantly, larger sample sizes must be recruited so that more reliable and statistically robust … messages used may have had an effect on the study population but were unobserved due to the small sample … size or may have been difficult to measure due to the high prevalence of insulin.

627. Venous-Ulcers-Treatment-Future Research (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/venous-ulcers-treatment-future_research.pdf
     January 01, 2014 - Design or Methodology Gap Study Design Estimation of sample size to achieve sufficient power; conduct … Both studies were more than 20 years old, had small sample sizes, and found no benefit for systemic … Standards for Estimating Proper Sample Sizes Well-developed statistical methods for estimating the size … …for estimating proper sample sizes. … …for estimating proper sample sizes. 0 14 Conducting…for recruiting patients.

628. STATISTICAL BRIEF #221: Dental Coverage of Children and Young Adults under Age 21, United States, 1996 and 2006
     meps.ahrq.gov/data_files/publications/st221/stat221.shtml
     September 01, 2008 - References For a detailed description of the MEPS-HC survey design, sample design and methods used … Design and Methods of the Medical Expenditure Panel Survey Household Component . … Sample Design of the 1996 Medical Expenditure Panel Survey Household Component. … Design Strategies and Innovations in the Medical Expenditure Panel Survey. … Sample Design of the Medical Expenditure Panel Survey Household Component, 1998-2007 .

629. - (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/cystic-fibrosis-hgh_appendixes.pdf
     January 01, 2009 - Characteristics Study Design  RCT – Parallel  Obs – Registry  RCT – Crossover  Case Report … Year;Volume:Page): Design Characteristics Study Design  RCT – Parallel  Obs – Registry  RCT … Each study’s mean, standard deviation, and sample size is taken into account to determine its level … For example, a study with a large sample size will have a greater impact on the composite endpoint … than a similar study with a small sample size.

630. Evidence Report on the (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/depression-treatment-ssri_research-protocol.pdf
     June 15, 2010 - Sample size: There are no restrictions for study sample size. … , sample size, sample size calculation or power estimate); clinical indications; and study duration … episodes of depression, age of first diagnosis, etc.), study outcomes (both of benefit and of harm), sample … Source: www.effectivehealthcare.ahrq.gov Published Online: June 15, 2010 withdrawals; 2) sample … size; 3) high versus low overall quality; and 4) prospective determination of “treatment failure.)

631. Acs-Pci-Adjunctive-Devices Research-Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/acs-pci-adjunctive-devices_research-protocol.pdf
     July 01, 2010 - that enrolled <500 subjects will be excluded, since numerous RCTs already exist within this smaller sample … size range, observational studies in this range contain small initial experiences not representative … Observational studies will be assessed for sample size, participant selection method, exposure measurement … This can be assessed through the evaluation of both design and study limitations. … duration with clinically relevant treatment modalities, assessed adverse events, had an adequate sample

632. Patient Residence Characteristics of Opioid-Related Inpatient Stays and Emergency Department Visits Nationally and by State, 2014 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb226-Patient-Residence-Opioid-Hospital-Stays-ED-Visits-by-State.pdf
     December 01, 2016 - size was too small to calculate the rate) a The number of States represented in the top and bottom … size was too small to calculate the rate) a The number of States represented in the top and bottom … size was too small to calculate the rate) a Opioid-related inpatient rates are per 100,000 population … size was too small to calculate the rate) a Opioid-related ED visit rates are per 100,000 population … half the length of confidence intervals under the previous design.

633. An All-Payer View of Hospital Discharge to Postacute Care, 2013 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb205-Hospital-Discharge-Postacute-Care.pdf
     November 01, 2015 - The redesign incorporates two critical changes:  Revisions to the sample design—starting with … by reducing sampling error: for many estimates, confidence intervals under the new design are about … half the length of confidence intervals under the previous design. … The change in sample design for 2012 necessitates recomputation of prior years' NIS data to enable analysis … Hospitals, 2011 For a detailed description of HCUP and more information on the design of the National

634. Randeree E et al. 2007 "Exploring physician adoption of EMRs: a multi-case analysis." | Digital Healthcare Research
     digital.ahrq.gov/health-it-tools-and-resources/workflow-assessment-health-it-toolkit/research/randeree-e-et-al-2007
     January 01, 2007 - Study Design Pre-postintervention (no control group) Study Participants Study participants

635. Aspirin for the Primary Prevention of Cardiovascular Events: An Update of the Evidence (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/t6yV6ZMHngeWgmTsoMMefM
     March 01, 2009 - Excluded (n = 722) High-risk patients only: 331 Aspirin not evaluated: 294 Inappropriate study design … size (50–100 subjects) and a “medium” spectrum of patients. … size or very narrowly selected spectrum of patients. … size (50–100 subjects) and a “medium” spectrum of patients. … size or very narrowly selected spectrum of patients

636. Disposition of Comments for Child Exposure to Trauma: Comparative Effectiveness of Interventions Addressing Maltreatment (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/trauma-interventions-maltreatment-child_disposition-comments.pdf
     April 15, 2013 - Affiliation Section Comment Response Peer Reviewer #2 General On page 62 of the report, under Study Design … size, research conducted by intervention developers ("allegiance effect"), high rate and differential … The authors do identify one of the major limitation of small sample sizes in that it is difficult to … sizes. … size to extrapolate and major conclusions about the field—especially treatments that may benefit traumatized

637. Comments to Effective Heath Care Program Draft Documents (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/registries-guide-2nd-edition_disposition-comments.pdf
     March 03, 2010 - Is this a general comment, or a specific comment on inadequate sample size? … Is this a general comment, or a specific comment on inadequate sample size, inadequate outcome definition … Some information on background rates is needed to do sample size calculations, but the information may … size. … There is a strong interplay between representativeness, patient recruitment, sample size and power,

638. AHRQ Statistical Brief #502: Characteristics of Practices Used as Usual Source of Care Providers during 2015-Results from the MEPS Medical Organizations Survey (pdf file)
     meps.ahrq.gov/data_files/publications/st502/stat502.pdf
     April 01, 2017 - References For a detailed description of the MEPS HC survey design, sample design, and methods used … Design and Methods of the Medical Expenditure Panel Survey Household Component. … Sample Design of the 1996 Medical Expenditure Panel Survey Household Component. … Design Strategies and Innovations in the Medical Expenditure Panel Survey. … Sample Design of the Medical Expenditure Panel Survey Household Component, 1998–2007.

639. eHealth Blood Pressure Control Program (eHealth BP) - Final Report (pdf file)
     digital.ahrq.gov/sites/default/files/docs/publication/r21hs018238-eaton-final-report-2012.pdf
     January 01, 2012 - Nine-month eHealth BP Home Blood Pressure Monitoring Study Design. … 12) 66.7 72.7 Change in % before and after Web +12.8 +18.2 Based upon these data, we performed a sample … size calculation for α=.05, ß=.80, and determined we would need 96 individuals in each arm for a simple … previously uncontrolled at levels consistent with other studies of HBPM and case management but the small sample … size and quasi-experimental design require a larger more rigorous study design to test effectiveness

640. FRN 41 - Noninvasive Technologies for the Diagnosis of Coronary Artery Disease in Women: Future Research Needs (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/cad-women-diagnosis-future_research_1.pdf
     February 01, 2013 - RCT --Sample size needed for outcome --Size of pool of potential subjects --Duration of follow-up required … Meta-analysis of RCTsYes META-ANALYSIS:RCTs --Sample size needed for outcome --Number, quality of RCTs … Considerations include: • Sample size required for a particular outcome and to include a representative … size to achieve adequate power … size