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Wyszukujesz frazę ""Sample Size"" wg kryterium: Temat


Tytuł:
Designing a phase-III time-to-event clinical trial using a modified sample size formula and Poisson-Gamma model for subject accrual that accounts for the lag in site initiation using the PERT distribution.
Autorzy:
Shipes VB; Division of Biostatistics, Department of Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina, USA.; Biostatistics, The Emmes Company, Rockville, Maryland, USA.
Meinzer C; Division of Biostatistics, Department of Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina, USA.
Wolf BJ; Division of Biostatistics, Department of Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina, USA.
Li H; Division of Biostatistics, Department of Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina, USA.
Carpenter MJ; Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, South Carolina, USA.; Hollings Cancer Center, Medical University of South Carolina, Charleston, South Carolina, USA.
Kamel H; Department of Neurology, Weill Cornell Medicine, New York City, New York, USA.
Martin RH; Division of Biostatistics, Department of Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina, USA.
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Źródło:
Statistics in medicine [Stat Med] 2023 Dec 30; Vol. 42 (30), pp. 5694-5707. Date of Electronic Publication: 2023 Nov 05.
Typ publikacji:
Journal Article
MeSH Terms:
Sample Size*
Humans ; Program Evaluation ; Time Factors
Czasopismo naukowe
Tytuł:
Optimally generate policy-based evidence before scaling.
Autorzy:
List JA; The University of Chicago, Chicago, IL, USA. .; ANU, Canberra, New South Wales, Australia. .; NBER, Cambridge, MA, USA. .
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Źródło:
Nature [Nature] 2024 Feb; Vol. 626 (7999), pp. 491-499. Date of Electronic Publication: 2024 Feb 14.
Typ publikacji:
Journal Article; Review
MeSH Terms:
Social Sciences*/methods
Social Sciences*/standards
Sample Size*
Humans ; Behavioral Research/methods ; Cost-Benefit Analysis
Czasopismo naukowe
Tytuł:
Analysis of length-biased and partly interval-censored survival data with mismeasured covariates.
Autorzy:
Chen LP; Department of Statistics, National Chengchi University, Taipei, Taiwan.
Qiu B; Department of Statistics, National Chengchi University, Taipei, Taiwan.
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Źródło:
Biometrics [Biometrics] 2023 Dec; Vol. 79 (4), pp. 3929-3940. Date of Electronic Publication: 2023 Jul 17.
Typ publikacji:
Journal Article; Research Support, Non-U.S. Gov't
MeSH Terms:
Sample Size*
Survival Analysis ; Computer Simulation
Czasopismo naukowe
Tytuł:
How important is the linearity assumption in a sample size calculation for a randomised controlled trial where treatment is anticipated to affect a rate of change?
Autorzy:
Morgan KE; Department of Medical Statistics, London School of Hygiene and Tropical Medicine, London, UK. .
White IR; MRC Clinical Trials Unit at UCL, University College London, London, UK.
Frost C; Department of Medical Statistics, London School of Hygiene and Tropical Medicine, London, UK.
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Źródło:
BMC medical research methodology [BMC Med Res Methodol] 2023 Nov 21; Vol. 23 (1), pp. 274. Date of Electronic Publication: 2023 Nov 21.
Typ publikacji:
Randomized Controlled Trial; Observational Study; Journal Article; Research Support, Non-U.S. Gov't
MeSH Terms:
Sample Size*
Humans ; Computer Simulation
Czasopismo naukowe
Tytuł:
Improved inference for MCP-Mod approach using time-to-event endpoints with small sample sizes.
Autorzy:
Diniz MA; Biostatistics Research Center, Samuel Oschin Comprehensive Cancer Center, Cedars-Sinai Medical Center, California, Los Angeles, USA.
Gallardo DI; Department of Mathematics, Engineering School, University of Atacama, Copiapó, Chile.
Magalhães TM; Department of Statistics, Institute of Exact Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil.
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Źródło:
Pharmaceutical statistics [Pharm Stat] 2023 Sep-Oct; Vol. 22 (5), pp. 760-772. Date of Electronic Publication: 2023 Apr 29.
Typ publikacji:
Journal Article
MeSH Terms:
Sample Size*
Humans ; Computer Simulation
Czasopismo naukowe
Tytuł:
Nonlinear effects and effect modification at the participant-level in IPD meta-analysis part 2: methodological guidance is available.
Autorzy:
Marlin N; Methodology Research Unit, Centre for Evaluation and Methods, Wolfson Institute of Population Health, Queen Mary University of London, 58 Turner Street, London E1 2AB, UK. Electronic address: .
Godolphin PJ; MRC Clinical Trials Unit at University College London, Institute of Clinical Trials and Methodology, 90 High Holborn, London WC1V 6LJ, UK.
Hooper RL; Methodology Research Unit, Centre for Evaluation and Methods, Wolfson Institute of Population Health, Queen Mary University of London, 58 Turner Street, London E1 2AB, UK.
Riley RD; Institute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK.
Rogozińska E; MRC Clinical Trials Unit at University College London, Institute of Clinical Trials and Methodology, 90 High Holborn, London WC1V 6LJ, UK.
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Źródło:
Journal of clinical epidemiology [J Clin Epidemiol] 2023 Jul; Vol. 159, pp. 319-329. Date of Electronic Publication: 2023 May 03.
Typ publikacji:
Journal Article; Research Support, Non-U.S. Gov't
MeSH Terms:
Sample Size*
Meta-Analysis as Topic*
Humans ; Computer Simulation ; Patient Selection
Czasopismo naukowe
Tytuł:
Parametric and nonparametric methods for confidence intervals and sample size planning for win probability in parallel-group randomized trials with Likert item and Likert scale data.
Autorzy:
Zou G; Department of Epidemiology and Biostatistics, Western University, London, Ontario, Canada.; Robarts Research Institute, Schulich School of Medicine & Dentistry, University of Western Ontario, London, Ontario, Canada.; Alimentiv Inc., London, Ontario, Canada.
Zou L; Department of Statistics and Actuarial Sciences, University of Waterloo, Waterloo, Canada.
Qiu SF; Department of Statistics and Data Science, Chongqing University of Technology, Chongqing, China.
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Źródło:
Pharmaceutical statistics [Pharm Stat] 2023 May-Jun; Vol. 22 (3), pp. 418-439. Date of Electronic Publication: 2022 Dec 16.
Typ publikacji:
Journal Article; Research Support, Non-U.S. Gov't
MeSH Terms:
Sample Size*
Humans ; Confidence Intervals ; Statistics, Nonparametric ; Randomized Controlled Trials as Topic ; Probability
Czasopismo naukowe
Tytuł:
Empirical assessment of fragility index based on a large database of clinical studies in the Cochrane Library.
Autorzy:
Xing A; Biostatistics and Research Decision Sciences, Merck & Co., Inc., Rahway, New Jersey, USA.; Department of Statistics, Florida State University, Tallahassee, Florida, USA.
Lin L; Department of Epidemiology and Biostatistics, University of Arizona, Tucson, Arizona, USA.
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Źródło:
Journal of evaluation in clinical practice [J Eval Clin Pract] 2023 Mar; Vol. 29 (2), pp. 359-370. Date of Electronic Publication: 2022 Nov 02.
Typ publikacji:
Journal Article; Research Support, N.I.H., Extramural
MeSH Terms:
Sample Size*
Clinical Studies as Topic*
Humans
Czasopismo naukowe
Tytuł:
Reply to: Multivariate BWAS can be replicable with moderate sample sizes.
Autorzy:
Tervo-Clemmens B; Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. .
Marek S; Department of Radiology, Washington University School of Medicine, St Louis, MO, USA. .; Department of Psychiatry, Washington University School of Medicine, St Louis, MO, USA. .
Chauvin RJ; Department of Neurology, Washington University School of Medicine, St Louis, MO, USA.
Van AN; Department of Neurology, Washington University School of Medicine, St Louis, MO, USA.; Department of Biomedical Engineering, Washington University in St Louis, St Louis, MO, USA.
Kay BP; Department of Neurology, Washington University School of Medicine, St Louis, MO, USA.
Laumann TO; Department of Psychiatry, Washington University School of Medicine, St Louis, MO, USA.
Thompson WK; Division of Biostatistics, University of California San Diego, La Jolla, CA, USA.
Nichols TE; Oxford Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Population Health, University of Oxford, Oxford, UK.
Yeo BTT; Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore.; Centre for Sleep and Cognition, National University of Singapore, Singapore, Singapore.; Centre for Translational MR Research, National University of Singapore, Singapore, Singapore.; N.1 Institute for Health, Institute for Digital Medicine, National University of Singapore, Singapore, Singapore.; Integrative Sciences and Engineering Programme, National University of Singapore, Singapore, Singapore.; Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA.
Barch DM; Department of Psychiatry, Washington University School of Medicine, St Louis, MO, USA.; Department of Psychological and Brain Sciences, Washington University in St Louis, St Louis, MO, USA.
Luna B; Department of Psychology, University of Pittsburgh, Pittsburgh, PA, USA.; Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA.
Fair DA; Masonic Institute for the Developing Brain, University of Minnesota Medical School, Minneapolis, MN, USA. .; Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA. .; Institute of Child Development, University of Minnesota Medical School, Minneapolis, MN, USA. .
Dosenbach NUF; Department of Radiology, Washington University School of Medicine, St Louis, MO, USA. .; Department of Neurology, Washington University School of Medicine, St Louis, MO, USA. .; Department of Biomedical Engineering, Washington University in St Louis, St Louis, MO, USA. .; Department of Psychological and Brain Sciences, Washington University in St Louis, St Louis, MO, USA. .; Program in Occupational Therapy, Washington University School of Medicine, St Louis, MO, USA. .; Department of Pediatrics, Washington University School of Medicine, St Louis, MO, USA. .
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Źródło:
Nature [Nature] 2023 Mar; Vol. 615 (7951), pp. E8-E12.
Typ publikacji:
Letter; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Comment
MeSH Terms:
Sample Size*
Raport
Tytuł:
Probabilistic precision calculations for the planning of studies assessing negative binomial rates.
Autorzy:
Hedberg J; Medical and Payer Evidence Statistics, AstraZeneca, Gothenburg, Sweden.
Franzén S; Medical and Payer Evidence Statistics, AstraZeneca, Gothenburg, Sweden.
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Źródło:
Pharmacoepidemiology and drug safety [Pharmacoepidemiol Drug Saf] 2024 Feb; Vol. 33 (2), pp. e5750.
Typ publikacji:
Journal Article
MeSH Terms:
Models, Statistical*
Humans ; Sample Size ; Probability ; Binomial Distribution ; Confidence Intervals
Czasopismo naukowe
Tytuł:
Designing individually randomized group treatment trials with repeated outcome measurements using generalized estimating equations.
Autorzy:
Wang X; Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, North Carolina, USA.; Department of Biostatistics, Yale School of Public Health, New Haven, Connecticut, USA.
Turner EL; Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, North Carolina, USA.; Duke Global Health Institute, Duke University, Durham, North Carolina, USA.
Li F; Department of Biostatistics, Yale School of Public Health, New Haven, Connecticut, USA.; Center for Methods in Implementation and Prevention Science, Yale University, New Haven, Connecticut, USA.
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Źródło:
Statistics in medicine [Stat Med] 2024 Jan 30; Vol. 43 (2), pp. 358-378. Date of Electronic Publication: 2023 Nov 27.
Typ publikacji:
Journal Article
MeSH Terms:
Models, Statistical*
Research Design*
Humans ; Sample Size ; Bias ; Cluster Analysis ; Computer Simulation
Czasopismo naukowe
Tytuł:
Extension of a conditional performance score for sample size recalculation rules to the setting of binary endpoints.
Autorzy:
Bokelmann B; Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Biometry and Clinical Epidemiology, Charitéplatz 1, Berlin, 10117, Germany. .
Rauch G; Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Biometry and Clinical Epidemiology, Charitéplatz 1, Berlin, 10117, Germany.; Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany.
Meis J; Institute of Medical Biometry, University Medical Center Ruprechts-Karls University Heidelberg, Im Neuenheimer Feld 130.3, 69120, Heidelberg, Germany.
Kieser M; Institute of Medical Biometry, University Medical Center Ruprechts-Karls University Heidelberg, Im Neuenheimer Feld 130.3, 69120, Heidelberg, Germany.
Herrmann C; Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Biometry and Clinical Epidemiology, Charitéplatz 1, Berlin, 10117, Germany.
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Źródło:
BMC medical research methodology [BMC Med Res Methodol] 2024 Jan 19; Vol. 24 (1), pp. 15. Date of Electronic Publication: 2024 Jan 19.
Typ publikacji:
Journal Article
MeSH Terms:
Research Design*
Humans ; Sample Size ; Computer Simulation ; Control Groups
Czasopismo naukowe
Tytuł:
Sample size calculation in clinical trials with two co-primary endpoints including overdispersed count and continuous outcomes.
Autorzy:
Homma G; Biostatistics & Data Science, Nippon Boehringer-Ingelheim Co., Ltd, Japan.
Yoshida T; Graduate School of Science and Engineering, Kagoshima University, Japan.
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Źródło:
Pharmaceutical statistics [Pharm Stat] 2024 Jan-Feb; Vol. 23 (1), pp. 46-59. Date of Electronic Publication: 2023 Sep 07.
Typ publikacji:
Journal Article
MeSH Terms:
Asthma*/drug therapy
Pulmonary Disease, Chronic Obstructive*/diagnosis
Pulmonary Disease, Chronic Obstructive*/drug therapy
Humans ; Sample Size ; Binomial Distribution ; Computer Simulation
Czasopismo naukowe
Tytuł:
Spatial predictions of groundwater potential using automated machine learning (AutoML): a comparative study of feature selection and training sample size in Qinghai Province, China.
Autorzy:
Wang Z; Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, China.; Qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes, Xining, 810008, China.; University of Chinese Academy of Sciences, Beijing, 100049, China.
Wang J; Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, China. .; Qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes, Xining, 810008, China. .
Li M; Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, China.; Qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes, Xining, 810008, China.; University of Chinese Academy of Sciences, Beijing, 100049, China.
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Źródło:
Environmental science and pollution research international [Environ Sci Pollut Res Int] 2024 Jan; Vol. 31 (1), pp. 1127-1145. Date of Electronic Publication: 2023 Dec 01.
Typ publikacji:
Journal Article
MeSH Terms:
Groundwater*
Sample Size ; Machine Learning ; China
Czasopismo naukowe
Tytuł:
Pharmacological Parameters and Pharmacokinetic Variability Derived from Bioequivalence Trials in a Mexican Population.
Autorzy:
Díaz-Tufinio CA; Axis Clinicals Latina, Mexico City, Mexico.; Tecnologico de Monterrey, School of Engineering and Sciences, Mexico City, Mexico.
Gonzalez-Covarrubias V; Laboratorio de Farmacogenomica, Instituto Nacional de Medicina Genomica, Mexico City, Mexico.
Palma-Aguirre JA; Axis Clinicals Latina, Mexico City, Mexico.
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Źródło:
Clinical pharmacology in drug development [Clin Pharmacol Drug Dev] 2024 Jan; Vol. 13 (1), pp. 6-13. Date of Electronic Publication: 2023 Nov 27.
Typ publikacji:
Journal Article
MeSH Terms:
Therapeutic Equivalency*
Humans ; Area Under Curve ; Sample Size
Czasopismo naukowe
Tytuł:
Designing multicenter individually randomized group treatment trials.
Autorzy:
Tong G; Department of Biostatistics, Yale University School of Public Health, New Haven, Connecticut, USA.; Center for Methods in Implementation and Prevention Science, Yale University, New Haven, Connecticut, USA.
Tong J; Department of Biostatistics, Yale University School of Public Health, New Haven, Connecticut, USA.; Center for Methods in Implementation and Prevention Science, Yale University, New Haven, Connecticut, USA.
Li F; Department of Biostatistics, Yale University School of Public Health, New Haven, Connecticut, USA.; Center for Methods in Implementation and Prevention Science, Yale University, New Haven, Connecticut, USA.
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Źródło:
Biometrical journal. Biometrische Zeitschrift [Biom J] 2024 Jan; Vol. 66 (1), pp. e2200307. Date of Electronic Publication: 2023 Sep 28.
Typ publikacji:
Journal Article
MeSH Terms:
Research Design*
Humans ; Cluster Analysis ; Computer Simulation ; Linear Models ; Sample Size
Czasopismo naukowe
Tytuł:
Group sequential design with maximin efficiency robust test for immunotherapy with generalized delayed treatment effect.
Autorzy:
Li B; Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, China.
Zhang J; Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, China.
Yang W; Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, China.
Su L; Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, China.
Yan F; Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, China.
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Źródło:
Pharmaceutical statistics [Pharm Stat] 2024 Jan-Feb; Vol. 23 (1), pp. 107-133. Date of Electronic Publication: 2023 Oct 19.
Typ publikacji:
Clinical Trial; Journal Article
MeSH Terms:
Immunotherapy*/methods
Treatment Delay*
Humans ; Computer Simulation ; Research Design ; Sample Size
Czasopismo naukowe
Tytuł:
BEATS: Bayesian hybrid design with flexible sample size adaptation for time-to-event endpoints.
Autorzy:
Bi D; Department of Public Health Sciences, University of Chicago, Chicago, Illinois, USA.
Liu M; Statistical & Quantitative Sciences, Takeda Pharmaceuticals, Cambridge, Massachusetts, USA.
Lin J; Statistical & Quantitative Sciences, Takeda Pharmaceuticals, Cambridge, Massachusetts, USA.
Liu R; Statistical & Quantitative Sciences, Takeda Pharmaceuticals, Cambridge, Massachusetts, USA.
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Źródło:
Statistics in medicine [Stat Med] 2023 Dec 30; Vol. 42 (30), pp. 5708-5722. Date of Electronic Publication: 2023 Oct 19.
Typ publikacji:
Randomized Controlled Trial; Journal Article
MeSH Terms:
Research Design*
Models, Statistical*
Humans ; Sample Size ; Bayes Theorem ; Computer Simulation
Czasopismo naukowe
Tytuł:
Sample size and predictive performance of machine learning methods with survival data: A simulation study.
Autorzy:
Infante G; Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.; Unit of Biostatistics for Clinical Research, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.
Miceli R; Unit of Biostatistics for Clinical Research, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.
Ambrogi F; Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.; Scientific Directorate, IRCCS Policlinico San Donato, San Donato Milanese, Italy.
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Źródło:
Statistics in medicine [Stat Med] 2023 Dec 30; Vol. 42 (30), pp. 5657-5675. Date of Electronic Publication: 2023 Nov 10.
Typ publikacji:
Journal Article
MeSH Terms:
Neural Networks, Computer*
Machine Learning*
Humans ; Sample Size ; Computer Simulation ; Proportional Hazards Models
Czasopismo naukowe

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