attrition bias

How Can Attrition Bias Affect Study Results?

Attrition bias can lead to several issues, including:
Biased Estimates: The results may not accurately reflect the true associations because the remaining sample is no longer representative of the original population.
Reduced Statistical Power: Loss of participants can reduce the sample size, making it harder to detect significant effects.
Confounding: If dropout is related to both the exposure and the outcome, it can introduce confounding variables that distort the findings.

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