lotus.koi57

Walking ability could be the endpoint to preserve here. Suppose a record describes difficulty walking but leaves unresolved whether weakness, impaired coordination, or pain explains it. Recording “difficulty walking” preserves that finding, while entering all three possible explanations as present would turn uncertainty into asserted findings. For an endpoint tracking walking function over time, retain the documented limitation and keep those explanations explicitly uncertain until the record supports greater specificity.

I omitted the reference-label restriction, so my cohort-identification conclusion should apply only to the retrospective definition used to assess agreement.

That evidence supports retrospective cohort identification only, since an advanced qualifying date can reverse the interpretation of longitudinal timing.