Clémence Leyrat
@clemley.bsky.social
Medical Statistician. Associate Professor at LSHTM.
Reposted by Clémence Leyrat
🎫 Spaces still available for our day long event on target-trial emulation and other frameworks
Explore the role and potential of observational data for evaluating the effects of interventions in fields like #datascience #biostatistics #epoidemiology #rstats
Register 🔽
bit.ly/TTE_25
Explore the role and potential of observational data for evaluating the effects of interventions in fields like #datascience #biostatistics #epoidemiology #rstats
Register 🔽
bit.ly/TTE_25
June 13, 2025 at 1:54 PM
🎫 Spaces still available for our day long event on target-trial emulation and other frameworks
Explore the role and potential of observational data for evaluating the effects of interventions in fields like #datascience #biostatistics #epoidemiology #rstats
Register 🔽
bit.ly/TTE_25
Explore the role and potential of observational data for evaluating the effects of interventions in fields like #datascience #biostatistics #epoidemiology #rstats
Register 🔽
bit.ly/TTE_25
Reposted by Clémence Leyrat
👨🔬 👩🔬 Are you working in #epidemiology #clinicaltrials or research using target trial emulation (TTE)?
Why don’t you join us and your colleagues in London for our symposium, exploring the latest methodological developments and applications of TTE and other frameworks?
Sign up 🔽
bit.ly/TTE_25
Why don’t you join us and your colleagues in London for our symposium, exploring the latest methodological developments and applications of TTE and other frameworks?
Sign up 🔽
bit.ly/TTE_25
June 4, 2025 at 11:13 AM
👨🔬 👩🔬 Are you working in #epidemiology #clinicaltrials or research using target trial emulation (TTE)?
Why don’t you join us and your colleagues in London for our symposium, exploring the latest methodological developments and applications of TTE and other frameworks?
Sign up 🔽
bit.ly/TTE_25
Why don’t you join us and your colleagues in London for our symposium, exploring the latest methodological developments and applications of TTE and other frameworks?
Sign up 🔽
bit.ly/TTE_25
Reposted by Clémence Leyrat
Just prompted @malte.the100.ci to look into the folder where he keeps his custom memes, which revealed a lot of forgotten gems. As it happens, my husband and I also have such a folder. If you also have one, please share some highlights! Here’s an old favorite of mine:>
May 9, 2025 at 6:58 AM
Just prompted @malte.the100.ci to look into the folder where he keeps his custom memes, which revealed a lot of forgotten gems. As it happens, my husband and I also have such a folder. If you also have one, please share some highlights! Here’s an old favorite of mine:>
Reposted by Clémence Leyrat
👋 Hi Bluesky. We’re the Centre for Data and Statistical Science for Health (DASH) at @lshtm.bsky.social
We are the hub for data and statistical science in LSHTM, applying our expertise and data science resources to the biggest problems in global health
Find out more about us 👇
We are the hub for data and statistical science in LSHTM, applying our expertise and data science resources to the biggest problems in global health
Find out more about us 👇
April 7, 2025 at 9:35 AM
👋 Hi Bluesky. We’re the Centre for Data and Statistical Science for Health (DASH) at @lshtm.bsky.social
We are the hub for data and statistical science in LSHTM, applying our expertise and data science resources to the biggest problems in global health
Find out more about us 👇
We are the hub for data and statistical science in LSHTM, applying our expertise and data science resources to the biggest problems in global health
Find out more about us 👇
Reposted by Clémence Leyrat
A recent @lshtm.bsky.social study led by Dr Ananya Malhotra examines how different immunotherapy treatments impact quality of life for advanced lung cancer patients over 18 months.
Findings highlight the need for a more personalised approach to care.
🔗 bit.ly/43FYPx5
Findings highlight the need for a more personalised approach to care.
🔗 bit.ly/43FYPx5
March 13, 2025 at 1:19 PM
A recent @lshtm.bsky.social study led by Dr Ananya Malhotra examines how different immunotherapy treatments impact quality of life for advanced lung cancer patients over 18 months.
Findings highlight the need for a more personalised approach to care.
🔗 bit.ly/43FYPx5
Findings highlight the need for a more personalised approach to care.
🔗 bit.ly/43FYPx5
Reposted by Clémence Leyrat
🚨 Misrepresentation in Scientific Research: The Case of Uspecific Vaccine Effects 🚨
A recent investigative article exposes troubling patterns in the research of Peter Aaby and Christine Stabell Benn on the so-called "unspecific effects" of vaccines.
A recent investigative article exposes troubling patterns in the research of Peter Aaby and Christine Stabell Benn on the so-called "unspecific effects" of vaccines.
March 6, 2025 at 8:24 AM
🚨 Misrepresentation in Scientific Research: The Case of Uspecific Vaccine Effects 🚨
A recent investigative article exposes troubling patterns in the research of Peter Aaby and Christine Stabell Benn on the so-called "unspecific effects" of vaccines.
A recent investigative article exposes troubling patterns in the research of Peter Aaby and Christine Stabell Benn on the so-called "unspecific effects" of vaccines.
Reposted by Clémence Leyrat
Do you work on clinical trials?
We need your help to understand the challenges to designing & delivering greener trials. Only 30 responses so far but we can all have a say on this topic. Please take 10 minutes to tell us what you think tinyurl.com/GreenTrials
Please share across your networks
We need your help to understand the challenges to designing & delivering greener trials. Only 30 responses so far but we can all have a say on this topic. Please take 10 minutes to tell us what you think tinyurl.com/GreenTrials
Please share across your networks
Microsoft Forms
tinyurl.com
January 21, 2025 at 8:40 AM
Do you work on clinical trials?
We need your help to understand the challenges to designing & delivering greener trials. Only 30 responses so far but we can all have a say on this topic. Please take 10 minutes to tell us what you think tinyurl.com/GreenTrials
Please share across your networks
We need your help to understand the challenges to designing & delivering greener trials. Only 30 responses so far but we can all have a say on this topic. Please take 10 minutes to tell us what you think tinyurl.com/GreenTrials
Please share across your networks
Curious to hear from people: it is common in research to give an Amazon voucher to participants (e.g. Delphi surveys). Do you see an ethical issue with it (because, well, it's Amazon) and if so, what could be a more ethical alternative (that can be used from any country)?
January 27, 2025 at 5:03 PM
Curious to hear from people: it is common in research to give an Amazon voucher to participants (e.g. Delphi surveys). Do you see an ethical issue with it (because, well, it's Amazon) and if so, what could be a more ethical alternative (that can be used from any country)?
Three weeks left to register!
📣 Do you want to learn about recent advances in causal inference?
Colleagues at INSERM are organising a workshop gathering international experts in the field. Bonus: it's happening in two amazing locations 🌇🇫🇷
Colleagues at INSERM are organising a workshop gathering international experts in the field. Bonus: it's happening in two amazing locations 🌇🇫🇷
January 9, 2025 at 9:53 AM
Three weeks left to register!
Reposted by Clémence Leyrat
Giens Workshops
Methodological expectations for demonstration of health product effectiveness by observational studies
#ObservationalStudies #RealWorldData #RealWorldEvidence #HealthTechnologyAssessment #CriticalReading #Decision #RegulatoryAgencies #MarketAccess
www.em-consulte.com/article/1710...
Methodological expectations for demonstration of health product effectiveness by observational studies
#ObservationalStudies #RealWorldData #RealWorldEvidence #HealthTechnologyAssessment #CriticalReading #Decision #RegulatoryAgencies #MarketAccess
www.em-consulte.com/article/1710...
Methodological expectations for demonstration of health product effectiveness by observational studies
Methodological expectations for demonstration of health product effectiveness by observational studies
www.em-consulte.com
December 19, 2024 at 1:03 PM
Giens Workshops
Methodological expectations for demonstration of health product effectiveness by observational studies
#ObservationalStudies #RealWorldData #RealWorldEvidence #HealthTechnologyAssessment #CriticalReading #Decision #RegulatoryAgencies #MarketAccess
www.em-consulte.com/article/1710...
Methodological expectations for demonstration of health product effectiveness by observational studies
#ObservationalStudies #RealWorldData #RealWorldEvidence #HealthTechnologyAssessment #CriticalReading #Decision #RegulatoryAgencies #MarketAccess
www.em-consulte.com/article/1710...
📣 Do you want to learn about recent advances in causal inference?
Colleagues at INSERM are organising a workshop gathering international experts in the field. Bonus: it's happening in two amazing locations 🌇🇫🇷
Colleagues at INSERM are organising a workshop gathering international experts in the field. Bonus: it's happening in two amazing locations 🌇🇫🇷
December 18, 2024 at 9:02 AM
📣 Do you want to learn about recent advances in causal inference?
Colleagues at INSERM are organising a workshop gathering international experts in the field. Bonus: it's happening in two amazing locations 🌇🇫🇷
Colleagues at INSERM are organising a workshop gathering international experts in the field. Bonus: it's happening in two amazing locations 🌇🇫🇷
Reposted by Clémence Leyrat
Updated @lshtm.bsky.social starter pack go.bsky.app/R9P96qR Excited see colleagues from Zimbabwe inc @thruzim.bsky.social @chidodc.bsky.social @kkranzer.bsky.social & Gambia inc @jaynesutherlandtb.bsky.social @karennyongesa.bsky.social - Hope more of our globally based colleagues will join too.
December 10, 2024 at 9:06 AM
Updated @lshtm.bsky.social starter pack go.bsky.app/R9P96qR Excited see colleagues from Zimbabwe inc @thruzim.bsky.social @chidodc.bsky.social @kkranzer.bsky.social & Gambia inc @jaynesutherlandtb.bsky.social @karennyongesa.bsky.social - Hope more of our globally based colleagues will join too.
Reposted by Clémence Leyrat
New paper from Shaun Seaman and me on how to simulate data from marginal structural models (MSMs) for survival outcomes, including Cox MSMs. This can be useful in simulation studies evaluating causal inference methods that use MSMs. R code provided. onlinelibrary.wiley.com/doi/10.1002/...
Simulating Data From Marginal Structural Models for a Survival Time Outcome
Marginal structural models (MSMs) are often used to estimate causal effects of treatments on survival time outcomes from observational data when time-dependent confounding may be present. They can be...
onlinelibrary.wiley.com
November 23, 2024 at 2:39 PM
New paper from Shaun Seaman and me on how to simulate data from marginal structural models (MSMs) for survival outcomes, including Cox MSMs. This can be useful in simulation studies evaluating causal inference methods that use MSMs. R code provided. onlinelibrary.wiley.com/doi/10.1002/...
Reposted by Clémence Leyrat
I’m hiring- info in the link below, or get in touch if interested
📣 JOB OPPORTUNITY!
💻 Research Fellow in causal inference and machine learning, Statistical Science Department, UCL
🔗 www.ucl.ac.uk/work-at-ucl/...
📅 Deadline 5th December
#causality #stats
📣 JOB OPPORTUNITY!
💻 Research Fellow in causal inference and machine learning, Statistical Science Department, UCL
🔗 www.ucl.ac.uk/work-at-ucl/...
📅 Deadline 5th December
#causality #stats
November 21, 2024 at 12:07 PM
I’m hiring- info in the link below, or get in touch if interested
📣 JOB OPPORTUNITY!
💻 Research Fellow in causal inference and machine learning, Statistical Science Department, UCL
🔗 www.ucl.ac.uk/work-at-ucl/...
📅 Deadline 5th December
#causality #stats
📣 JOB OPPORTUNITY!
💻 Research Fellow in causal inference and machine learning, Statistical Science Department, UCL
🔗 www.ucl.ac.uk/work-at-ucl/...
📅 Deadline 5th December
#causality #stats
Reposted by Clémence Leyrat
I made one for stats papers
November 18, 2024 at 4:02 AM
I made one for stats papers
Reposted by Clémence Leyrat
Created a new group replacing and updating a list I enjoyed following on the bird site. Mostly people posting on medical stats and DS/AI
ICYI: go.bsky.app/ArqEz36
ICYI: go.bsky.app/ArqEz36
Medical stats/ds/ai
Join the conversation
go.bsky.app
October 21, 2024 at 10:40 AM
Created a new group replacing and updating a list I enjoyed following on the bird site. Mostly people posting on medical stats and DS/AI
ICYI: go.bsky.app/ArqEz36
ICYI: go.bsky.app/ArqEz36
Reposted by Clémence Leyrat
Applied Statistics
August 25, 2024 at 6:30 PM
Applied Statistics
Do you use inverse probability-of-treatment weights ⚖️ for causal inference? Wondering how variance can be estimated correctly 🤔? Check out our new tutorial in Statistics in Medicine! bit.ly/3Uk34cK
On variance estimation of the inverse probability‐of‐treatment weighting estimator: A tutorial for different types of propensity score weights
Propensity score methods, such as inverse probability-of-treatment weighting (IPTW), have been increasingly used for covariate balancing in both observational studies and randomized trials, allowing ....
bit.ly
April 19, 2024 at 1:26 PM
Do you use inverse probability-of-treatment weights ⚖️ for causal inference? Wondering how variance can be estimated correctly 🤔? Check out our new tutorial in Statistics in Medicine! bit.ly/3Uk34cK
Reposted by Clémence Leyrat
In May 23, Benn et al. tried to 'demonstrate' that adenovirus-vector #COVID19 #vaccines have beneficial non-specific effects. Preprint of our rebuttal (submitted to the same journal, pending review) is out 👍@lonnibesancon.bsky.social @infectiobxl.bsky.social @gidmk.bsky.social @clemley.bsky.social
osf.io
October 24, 2023 at 3:45 AM
In May 23, Benn et al. tried to 'demonstrate' that adenovirus-vector #COVID19 #vaccines have beneficial non-specific effects. Preprint of our rebuttal (submitted to the same journal, pending review) is out 👍@lonnibesancon.bsky.social @infectiobxl.bsky.social @gidmk.bsky.social @clemley.bsky.social
Reposted by Clémence Leyrat
New paper: ‘How to check a simulation study’
Ever run a simulation study and realised the results don’t make sense or you don’t believe them? Then this one is for you because we’ve been there (too many times)!
academic.oup.com/ije/advance-...
Ever run a simulation study and realised the results don’t make sense or you don’t believe them? Then this one is for you because we’ve been there (too many times)!
academic.oup.com/ije/advance-...
October 17, 2023 at 12:56 PM
New paper: ‘How to check a simulation study’
Ever run a simulation study and realised the results don’t make sense or you don’t believe them? Then this one is for you because we’ve been there (too many times)!
academic.oup.com/ije/advance-...
Ever run a simulation study and realised the results don’t make sense or you don’t believe them? Then this one is for you because we’ve been there (too many times)!
academic.oup.com/ije/advance-...