Beyond exchangeability: The other conditions for causal inference in medical research

Causal inference in studies and medical articles

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Challenges for causal inference in obesity research

Comment: Causal Inference in the Medical Area

It is an honor to be a discussant to the Morris Hansen Lecture, and a pleasure to be discussing Don Rubin’s talk. Dr. Rubin has clarified over the years many of the deep issues relating to causal inference. Let me start with a story. About 20 years ago when I was teaching at UCLA, I was eating breakfast one morning at my kitchen table, and my twoand-a-half-year-old daughter was in the next room...

causal inference in studies and medical articles

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The Trend-in-trend Research Design for Causal Inference

Cohort studies can be biased by unmeasured confounding. We propose a hybrid ecologic-epidemiologic design called the trend-in-trend design, which requires a strong time trend in exposure, but is unbiased unless there are unmeasured factors affecting outcome for which there are time trends in prevalence that are correlated with time trends in exposure across strata with different exposure trends...