b (source code)
= b
{scope}
This is <administrative censoring>. Under the usual assumption that entry calendar time is independent of the subsequent event time, it is an example of <independent censoring>, not <informative censoring>: the planned study closure, rather than a patient's prognosis, determines the available follow-up. Uniform entry by itself does not prove that assumption; if entry date is associated with prognosis, independence must instead be justified conditionally on the relevant <covariates>. The calculations below use independence.
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