Månad: januari 2014

Djupa tankar kring riskfaktorer och urvalsbias

Väldigt intressanta tankar det här och information som är viktig att känna till. Obese people average higher mortality rates than normal weight people, but mortality among obese heart failure patients is lower than mortality among normal weight heart failure patients. This combination of statistical results is consistent with (at least) two very different causal structures. One possibility—call it the “opposite effects” hypothesis— is that heart failure qualitatively transforms the consequences of obesity: that is, obesity […]

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