Six events were imputed in this instance.
To conduct the imputation, they fitted a working failure-time proportional hazards (PH) model to the midpoint imputed event time data to define an imputing risk set for each censored observation.
Chief among these was that the imputed event and death rates from the era before combination therapy became widely available may have been different than in the modern treatment era [ 21].
The block information can be used to estimate linkage disequilibrium, the number and location of recombination events, to impute sire genotypes and to phase progeny genotypes.
In the worst-case scenario, unreported LTFU data were imputed as "event" in the test group and "no event" in the control group (best-case scenario: vice versa).
In the equal-case scenario, the unreported LTFU data were imputed as "event" in both groups.
It is racism, she says, which can be imputed to events in Israel.
If an event date had not been entered into the GP system, the date that the record was created was used (0.1% were imputed (10,986 events)).
Although such events cannot easily be imputed either to nursing or to any specific care system, they still reflect outcomes of each of these systems and warrant consideration in assessing the performance of any system.
For HIV infection, the midpoint between the last negative and first positive PCR test was imputed as the event time, for deaths the actual age of death was used.
