using
theequationl(x)=logitP(x)=___(numberof interruptions),and
evaluated as P(x)=1/[1_e−l(x)], where x=mean interruptions.
Among single drug administrations, the mean number of
failures and errors in each administration was calculated for
each severity category (Table 1), and grouped as minor (severity
levels 1 and 2) or major (severity levels 3-5).
Logistic regression was used to model binary outcomes for
major errors (ie, the influence of interruptions on the risk of a
major error).