Category Archives: Uncategorized

Actually, you are probably still infectious.

Every year without fail, someone confidently tells me that they’re sick but they’re no longer infectious, often just after kissing me on the cheek. I’m sorry to be the bearer of bad news here – there is no way for … Continue reading

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Lucky they caught it early?

Last week, Stephen Fry shared the news that he had recently been diagnosed with prostate cancer, and urged other men to go and be tested. This sounds straightforward and common sense, but sadly in the case of prostate cancer specifically, … Continue reading

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What is misclassification? (Epidemiology)

Differential misclassification is probably the most complex topic we teach in introductory epidemiology, and it seems to be the one that students struggle with most. Most of the resources that we encounter don’t explain it very clearly for beginning students, … Continue reading

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Starting out with a dSLR

Recently I tried to show a friend how to use a dSLR, and realised that shooting on full manual is a bit like driving – after a while you forget how many things you’re actually doing at once. It turns … Continue reading

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Why isn’t cancer treatment X covered by Medicare?

Every so often I see a crowd funding campaign for medical care that isn’t covered by Medicare (in Australia) or the NHS (in England). Sometimes it’s for an experimental treatment, other times it’s for alternative therapy, and occasionally it’s something … Continue reading

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How (not) to build multivariable models

Why do we use multivariable models? The purpose of statistical models in research, to put it very simply, is to help identify possible causal relationships between variables. Models can’t always achieve this aim – they might incorrectly identify a relationship … Continue reading

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To screen or not to screen

Something I discuss with friends and family occasionally is the risk / benefit balance when it comes to making decisions about things like mammograms or prostate cancer screening. This post is about screening for people with no known risk factors … Continue reading

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