Kara Rudolph
@kara_rudolph
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Associate Professor, Columbia University. Epidemiology, casual inference, mom to two cuties
New York, NY
Joined March 2015
RT @ildiazm: New paper and software alert! . Interested in modern mediation analysis methods with machine learning….
arxiv.org
Causal mediation analyses investigate the mechanisms through which causes exert their effects, and are therefore central to scientific progress. The literature on the non-parametric definition and...
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So excited to see this work by truly incredible PhD student @cagimbrone out in the world! Adding quantitative evidence for the potential benefits of red flag laws.
After Florida’s red flag law enactment, homicide mortality increased, but the was lower than expected vs its synthetic control. There were no differences from expected mortality rates for nonfirearm homicide, firearm suicide, or nonfirearm suicide.
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Getting to hang out in person is the best.
Thankful to be heading into a break but rejuvenated by 3 days talking generalizability @ICERM @BrownUniversity, inc in-person time with virtual post-docs @parikh_harsh_ and @rachael_k_ross and colleagues who become friends. @kara_rudolph @stats_tipton @fraukolos
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RT @RensonAudrey: Have you every wondered how generalizability or transportability work with difference-in-differences? Check it out in a n….
arxiv.org
Difference-in-differences (DID) is a popular approach to identify the causal effects of treatments and policies in the presence of unmeasured confounding. DID identifies the sample average...
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We learned optimal treatment rules to match patients w the medication for #OUD that would give them the lowest risk of relapse. These rules improved outcomes relative to had everyone received methadone or naltrexone but similar to buprenorphine. Also adding amazing @nickWillyamz.
can individualizing treatment for #OpioidUseDisorder improve outcomes? find out in this new @AmJEpi article from @kara_rudolph, @ildiazm, @seanluomdphd, et al! @societyforepi
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RT @RoxyPebdani: Academic moms - trying to quantify how Covid impacted your research productivity? Our newest paper can help. Check out thi….
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This was the best ❤️.
We made a mini @RWJF reunion happen!! . @LindsayTillHoyt @CourtneyCogburn @merlinc2 @SarahKCowan @joanacasey @kara_rudolph
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And a huge thanks to @nickWillyamz @ildiazm @AliciaThilani and not-on-Twitter Matis, Sean, Marc, John and Ned for working on this with me.
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Thank you!! tl;dr: we quantified how well 4 different dosing strategies for #buprenorphine and #methadone work for treating OUD. For both medications, dose should be increased to minimum thresholds, and, for buprenorphine, increased in response to continued use after.
Today's #shoutout to #womenInSTEM goes to .@kara_rudolph for her @DrugAlcoholDep paper on dosing strategies for #methadone & #buprenorphine to prevent relapse. #addiction #opioids.
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RT @LauraBBalzer: This is the true story of 7 epidemiologists. Picked to give presentation. To find out what happens. When people sto….
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Tarlie was incredibly thoughtful, incredibly insightful, and so kind. I miss and will continue to miss her, but am grateful to have known and worked with her.
I am so deeply sad today to have lost a wonderful colleague and human. @TarlieTownsend was one of the strongest and brilliant people I’ve had the fortune to work with. We will miss her tremendously. May her words below and her memory be a blessing to all of us who knew her.
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RT @Magda_Cerda: I am so deeply sad today to have lost a wonderful colleague and human. @TarlieTownsend was one of the strongest and brilli….
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Specifically, we consider the scenario with one IV for the the exposure, and another with 2 IVs—one for the exposure and another for the mediator—that may be related. We propose non parametric, robust estimators for each. Thanks to @nickWillyamz we also have an R package!.
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As a bright point (/distraction from nyc’s Covid numbers with kids too young to be vaccinated), I’m excited to post this paper that’s been a pandemic project with @ildiazm and @nickWillyamz. We use instrumental variables to identify mediation effects
arxiv.org
Mediation analysis is a strategy for understanding the mechanisms by which treatments or interventions affect later outcomes. Mediation analysis is frequently applied in randomized trial settings,...
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8. Message 1: next time, I’ll do the math . 9. Message 2: binax is a useful screener, but important to confirm with PCR.
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7. *Cannot believe I failed to calculate the positive predictive value of those binax tests* WHY. PPV: P(D+ | T+) = P(T+ | D+) P(D+) / P(T+).Plugging in the sensitivity and specificity of the Binax test and the 7 day Covid prevalence in our zip code, the PPV is 6.3%. 🙄.
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6. Day after Thanksgiving: no results yet. I book her a 3 hour PCR test. Get results: negative. Get results of second PCR later that evening: negative.
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3. I retested her, and she tested positive again!. 4. We put a mask on her. I book a PCR appointment. Some family chooses not to come. 5. I get her a PCR. Few options Thanksgiving day, but I find one that guarantees results in 48 hours. Rest of family masks and leaves later.
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1. We Binax tested everyone getting together inside for the holiday . 2. My 6 year-old daughter tested positive. She’s had a cold with a cough for more than 2 weeks. She’s had her first vaccine dose but only recently.
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How me not calculating the positive predictive value of a positive binax test messed up Thanksgiving: a thread.
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