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Showing results for "design sample size".

2201. Statistical Brief #57: Meningitis-Related Hospitalizations in the United States, 2006 (pdf file)
      hcup-us.ahrq.gov/reports/statbriefs/sb57.pdf
      July 09, 2008 - For a detailed description of HCUP, more information on the design of the NIS, and methods to calculate

2202. Migraine-Emergency Executive (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/related_files/migraine-emergency_executive.pdf
      November 01, 2012 - The search strategy did not employ any study design search filters, nor were language restrictions … Single trials, particularly those with small sample sizes, were graded as having insufficient strength … Sample sizes varied, with an overall median of 64 patients per study (interquartile range: 40 to 100 … A small number of studies and overall small sample sizes contributed to imprecision. … Equivalence claims would require considerably larger sample sizes and 95% CIs that do not include the

2203. Statistical Brief #122
      hcup-us.ahrq.gov/reports/statbriefs/sb122.jsp
      October 01, 2011 - For a detailed description of HCUP, more information on the design of the NIS, and methods to calculate

2204. Can Risk Score Alerts Improve Office Care for Chest Pain? - Final Report (pdf file)
      digital.ahrq.gov/sites/default/files/docs/publication/r18hs017075-sequist-final-report-2010.pdf
      January 01, 2010 - other clinical service. 3 Final Report Purpose With a randomized, controlled study design … The trial ran for 15 months to ensure enrollment of sufficient sample sizes. 7 Limitations … While our study benefits from the rigorous design and evaluation, the findings should be interpreted … The design and delivery of electronic decision support systems play a large role in their effectiveness

2205. Overview of Hospitalizations among Patients with COPD, 2008 (pdf file)
      hcup-us.ahrq.gov/reports/statbriefs/sb106.pdf
      February 14, 2011 - For a detailed description of HCUP, more information on the design of the NIS, and methods to calculate

2206. Physician Use of Hand-held Computers for Drug Information and Prescribing (pdf file)
      www.ahrq.gov/sites/default/files/wysiwyg/professionals/quality-patient-safety/patient-safety-resources/resources/advances-in-patient-safety/vol4/Galt.pdf
      January 01, 2004 - exception of one rural practice.17 Administration of the instrument A pre- to postintervention design … Limitations The limited sample size precludes the investigators from establishing construct validity … A minimum sample size required pooling data in order to PDAs for Drug Information and Prescribing … However, the subject selection and study design minimized sources of internal invalidity related to

2207. eCoach: Development and Pilot Testing of a Decision Aid for Prostate Cancer - Final Report (pdf file)
      digital.ahrq.gov/sites/default/files/docs/publication/r21hs021797-gillespie-final-report-2015.pdf
      January 01, 2015 - A pilot study was conducted to solicit input from patients to design the eCoach tool. … Study Design. This study involved a mixed methods study design. … The small sample size overall prevented extensive quantitative data analysis using inferential statistics … However, the complexity of the eCoach tool design process, and the various iterations required based … Study Design. Data Analysis. Qualitative Data Analysis. Quantitative Data Analysis.

2208. Archived: Evidence Summary: Colorectal Cancer: Screening | United States Preventive Services Taskforce
      www.uspreventiveservicestaskforce.org/uspstf/document/evidence-summary/colorectal-cancer-screening-june-2016
      June 15, 2016 - Studies whose design was subject to a high risk of bias were generally excluded, including studies that … Data Synthesis and Analysis For each KQ, the number and design of included studies, overall results … The results were synthesized by KQ, type of screening test, and study design. … Empirical evidence of design-related bias in studies of diagnostic tests. … Design: study did not use an included design.

2209. Patient-Provider Electronic Messenger in Chronic Illness - Final Report (pdf file)
      digital.ahrq.gov/sites/default/files/docs/publication/r03hs014625-ralston-final-report-2006.pdf
      January 01, 2006 - Methods Study Design The study design was a retrospective analysis focusing on the four groups … Power and Sample … Size Power and precision estimates were based on our initial estimation of the sample sizes in our … Our initial estimates of SM use, however, were lower than our actual sample sizes due to the rapid uptake … between patients and providers through MyGroupHealth Setting Participants Methods Study Design

2210. Prehospital EMS Blood Transfusion and Fluid Interventions for Hemorrhagic Shock (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/related_files/ems-blood-transfusion-protocol-amendment.pdf
      February 04, 2025 - The key dilemma for EMS system design is determining what options are feasible and sustainable for individual … Consideration should be given to the formulation of precise scientific questions, optimal study design … The criteria used will depend on the study design as recommended in the chapter, “Assessing the Risk … the width of confidence intervals relative to a clinically important effect estimate, sufficiency of sample … size, and number of events.

2211. final Fibromyalgia CER protocol_3-31-14 (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/pdf/fibromyalgia_research-protocol.pdf
      April 03, 2014 - studies will be assessed by two independent investigators using instruments specific to each study design … Moderate risk of bias may be assigned to large cohort studies with a sample size for adequate power … first four domains.56 Study limitations will be rated as low, moderate or high according to study design … Therefore study questions, design and/or methodological approaches do not necessarily represent the … Study design: prospective, retrospective or mixed?

2212. Disposition of Comments Report for Procalcitonin-Guides Antibiotic Therapy (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/related_files/cer78_procalcitonin_disposition_20121210.pdf
      October 05, 2012 - The first two research gaps are straightforward although not easy studies to design. … But difficult to design and implement in the real world. … appropriately note that definitively determining a mortality difference would require a very large sample … size. … and standard therapy and have a confidence interval that is narrow would require a large sample size

2213. research Findings #34: Transitions in Health Insurance Coverage for Non-Elderly Adults in the U.S. Civilian Noninstitutionalized Population: 2012-2013 through 2014-2015 and Selected Preceding Two-Year Periods (pdf file)
      meps.ahrq.gov/data_files/publications/rf34/rf34.pdf
      August 01, 2017 - who reported other races and/or multiple races were not included in the analysis due to insufficient sample … size. … Design and Methods of the Medical Expenditure Panel Survey Household Component. … Sample Design of the Medical Expenditure Panel Survey Household Component, 1998–2007.

2214. Archived: Final Evidence Summary: Breast Cancer: Screening | United States Preventive Services Taskforce
      www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-summary9/breast-cancer-screening-2009
      November 15, 2009 - Data Extraction and Quality Assessment We extracted details about the patient population, study design … assisted with internal and external review of the draft manuscript but had no additional role in the design … Years Setting or Population (Screened Patients; Control Participants) Enrollment Age, y Study Design … Number of Studies and Type Design

2215. FRN 30: Outpatient Case Management for Adults With Medical Illnesses and Complex Care Needs: Future Research Needs (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/pdf/case-management-future_research.pdf
      June 01, 2015 - Research Design E1. … sizes (less than 500 participants per intervention arm). … • Incorporate large sample sizes (more power), e.g., large observational cohort studies, large trials … This is an exploratory approach that requires studies with diverse patients and large enough sample … sizes to allow valid subgroup analysis.

2216. Skin Substitutes for Treating Chronic Wounds (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/pdf/skin-substitute_0.pdf
      October 03, 2019 - What are the study design characteristics (such as those listed below) in each included investigation … Basic study design and conduct information including at least method of patient enrollment, care setting … What best practices in study design could be used to produce high quality evidence on skin substitutes … care Studies not administering similar standard of care or not describing standard of care Study design … Any study design in which patients are not randomly allocated to treatment except for wound types where

2217. Impact of Health Information Technology on Clinical Care for Patients with Chronic Medical Conditions (pdf file)
      digital.ahrq.gov/sites/default/files/docs/publication/r01hs015280-hsu-final-report-2008.pdf
      January 01, 2008 - Study Design. … Design. … Design. … An historical observation design (2004-2006) and automated data in an integrated delivery system for … Study Design.

2218. HCUP Statistical Brief #105: Emergency Department Visits and Inpatient Stays Related to Back Problems, 2008 (pdf file)
      hcup-us.ahrq.gov/reports/statbriefs/sb105.pdf
      February 01, 2011 - For a detailed description of HCUP, more information on the design of the NIS, and methods to calculate

2219. Statistical Brief #105
      hcup-us.ahrq.gov/reports/statbriefs/sb105.jsp
      February 01, 2011 - For a detailed description of HCUP, more information on the design of the NIS, and methods to calculate

2220. Most Frequent Conditions in U.S. Hospitals, 2011 #162
      hcup-us.ahrq.gov/reports/statbriefs/sb162.jsp
      September 01, 2013 - For a detailed description of HCUP, more information on the design of the Nationwide Inpatient Sample