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However, inspection of the covariates adjusted for in each study failed to reveal a systematic effect (i.e., the studies with more comprehensive covariate adjustment did not necessarily show reductions in OR estimates from unadjusted to adjusted models)

Men, for example, admit to littering butts more than women and yet observational studies show the genders are equal opportunity scofflaws when it comes to pitching their butts into drains, gutters or sewers

My colleague and friend, JK Costello, MD, MPH, wrote this article about the dangers of alcohol abuse, contrasting it to our also very serious opioid crisis