Assistant member, Department of Biostatics and Bioinformatics @RoswellPark; UBC graduate @ubcspph | Cluster randomized trials, Bayesian trials

Joined February 2020
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Yongdong Ouyang retweeted
10 Jan 2025
Applications for the CANSTAT #clinicaltrials #biostatistics fellowship are now open! Learn more about the eligibility criteria, available placements & how to apply: can-stat.ca/admissions-and-f… #StatisticalMethods #Biostatisticians #ResearchStatistics #StatsTraining
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Yongdong Ouyang retweeted
26 Dec 2024
Bothered by the proliferation of stepped-wedge clinical trials with very few clusters? Guanyu Tong and colleagues study this issue and offer advice. @TonyGuangyuTONG @YaleCardiology @ysphbiostat @SCTorg @MonicaTaljaard
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Yongdong Ouyang retweeted
10 Oct 2024
Curious about extremely small stepped wedge cluster randomized trials (SW-CRTs)? Our latest paper, led by @TonyGuangyuTONG, explores the landscape of published SW-CRTs with <= 6 clusters. Take a look at what we found! journals.sagepub.com/doi/10.… @ColinBBegg @SteppedWedgehog
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Yongdong Ouyang retweeted
7 Aug 2024
Meet IMPaCT Fellow @KidneyCal ! Through his research, Cal aspires to advance the evidence-based treatment of pediatric kidney diseases, prevent adverse long-term outcomes, and minimize disease burden. Learn more about Cal’s project here: impactrials.ca/cal-robinson
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Yongdong Ouyang retweeted
3 Jun 2024
Worry about random-effects misspecification in stepped wedge trials? Then consider the cluster-robust sandwich variance estimator as part of the primary analysis. We offer some practical recommendations in this simulation study led by @douyang3 journals.sagepub.com/doi/10.…
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Yongdong Ouyang retweeted
With #TargetTrial emulation becoming increasingly popular, it's important to understand what it can and cannot do. In this new podcast, I discuss how target trial emulation can 1) improve causal inference from observational data, and 2) extend inferences from randomized trials.
3 May 2024
Professor @_MiguelHernan of @HarvardChanSPH discusses "Target Trial Emulation: A Framework for Causal Inference From Observational Data" with JAMA Statistical Editor Roger J. Lewis. ja.ma/3QupTYZ
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Yongdong Ouyang retweeted
2-weeks to go, 4th international conf. on the stepped wedge design. An exciting programme ahead, with Prof. Richard Hopper opening keynote speech: Untested geometries: What’s around the corner for the stepped wedge? @SteppedWedgehog Free registration: x.com/MonaKanaan3/status/173…

ABSTRACT SUBMISSION IS NOW OPEN. PLEASE COMPLETE USING docs.google.com/forms/d/e/1F… Looking forward to seeing you in May. Please spread the event details to your networks.
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Yongdong Ouyang retweeted
15 Jan 2024
Would you like to be a CANSTAT fellow? Applications are now open!! Learn more about the eligibility criteria & how to apply: can-stat.ca/admissions-and-f… #ClinicalTrials #Biostatistics #StatisticalMethods #Biostatisticians #ResearchStatistics #ClinicalDataAnalysis #StatsTraining
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Yongdong Ouyang retweeted
22 Nov 2023
Wondering how well we adhered to key recommendations when working with stepped-wedge cluster randomized trials in the past half decade? Check out this most recent systematic review led by @PascaleNevins with @Marym_Ryan @douyang3 @CanMeng47 @TonyGuangyuTONG and others.
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Yongdong Ouyang retweeted
6 Nov 2023
I am looking for a full-time Biostatistics Postdoctoral Associate to join my team in 2024, with a flexible start date. The candidate will work on developing methods for cluster randomized trials & stepped wedge designs. Position details m.yale.edu/b7s4 via @YaleSPH

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Yongdong Ouyang retweeted
20 Jun 2023
Education Corner: Estimating intra-cluster correlation coefficients for planning longitudinal cluster randomized trials: a tutorial doi.org/10.1093/ije/dyad062
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Repost (accidentally deleted my previous post) My recent work with @karlahemming(@UoB_IAHR), @FanLi90(@ysphbiostat), and #monicataljaard (@CIR @uOttawa_SEPH @OttMethodsCentr) on how to estimate ICC when planning a multiple-period cluster randomized trials (Shinyapp included)
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Repost (accidentally deleted my previous post) My recent work with @karlahemming(@UoB_IAHR), @FanLi90(@ysphbiostat), and #monicataljaard (@CIR @uOttawa_SEPH @OttMethodsCentr) on how to estimate ICC when planning a multiple-period cluster randomized trials (Shinyapp included)
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All set for this conference. First international travel since Pandemic
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Yongdong Ouyang retweeted
A Scoping Review described diversity in methods of randomization and reporting of baseline balance in Stepped-Wedge Cluster Randomized Trials jclinepi.com/article/S0895-4…

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Yongdong Ouyang retweeted
For sample sizes in RCTs, many use a minimum important difference. But, argues CHÉOS Head of #Biostatistics Dr. Hubert Wong in @MedicalEvidence, we should use a realistic estimate of the true benefit, or we will fail to meet target power. #statstwitter trialsjournal.biomedcentral.…
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Yongdong Ouyang retweeted
Super stoked to see this published! The preliminary work for this one dates back to my undergrad research (of course, with #MonicaTaljaard). Huge thanks to everyone involved!!
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I am honoured and excited to be awarded the 2022 @CIHR_IRSC Health System Impact Postdoc Fellowship and work with @doctor_forster and #monicataljaard on the development of methodologies to evaluate and monitor innovation technologies at @OttawaHospital @OttMethodsCentr
18 Nov 2022
Today, the Honourable Jean-Yves Duclos announced 43 Health System Impact Fellows, an investment of more than $4.7M to address pressing health system priorities with evidence. canada.ca/en/institutes-heal… #CIHR_ImpactFellows
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Yongdong Ouyang retweeted
How does involvement of medical learners in care impact frequency of return visits to a Canadian ED? Read here: link.springer.com/article/10…

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