Health: At the same time lets keep the definition of “healthy user bias” tucked in the back of our minds “it is a sampling bias: the kind of subjects that voluntarily enroll in a clinical trial and actually follow the experimental regimen are not representative of the general population. They can be expected, on average, to be healthier”
So far so good?
The Healthy User Bias in this study is that HEALTHY Normal kids are more likely to USE the MMR
and Autistic Kids are more likely NOT to get the MMR.
Agree?