Data containing one source of bias, three known confounders, and
100,000 observations. This data is obtained from df_om_source
by removing the column Y. The resulting data corresponds to
what a researcher would see in the real-world: a misclassified outcome,
Ystar, and no data on the true outcome. As seen in
df_om_source
, the true, unbiased exposure-outcome odds ratio = 2.