What's the difference between confoundment, sampling and selection bias?
I know that failure of follow up is a selection bias. Sampling bias is "selecting" candidates for a study not representative of the population, and confounders are other factors in the selected population that come in association with the studied variant.
For example selecting mostly young population for an atherosclerosis related study is not representative of the population, and it confounds with other factors as smoking.
I know that failure of follow up is a selection bias. Sampling bias is "selecting" candidates for a study not representative of the population, and confounders are other factors in the selected population that come in association with the studied variant.
For example selecting mostly young population for an atherosclerosis related study is not representative of the population, and it confounds with other factors as smoking.