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Causal DAG templates

Biology — Attrition Bias

Loss to follow-up is a collider of exposure and outcome.

Causal DAGLife SciencesCausal DAG syntax docs
Template previewCausal DAG
Attrition bias (loss to follow-up)EExposureYOutcomeLDropped out before follow-upExposureOutcomeConfounderMediatorUnobservedThe exposure is unconfounded: every backdoor path is already blocked, so the crude association estimates the total effect. 3 variables, 3 edge…No adjustment is needed: the exposure is unconfounded in this diagram, so the crude association between `Exposure` and `Outcome` already estimates the total effec…

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title "Attrition bias (loss to follow-up)"
exposure E "Exposure"
outcome Y "Outcome"
node L "Dropped out before follow-up"
E -> L
Y -> L
E -> Y