Secondly, rhythmic information such as relative durations are calculated using beat detection techniques.
Response duration was calculated using the Kaplan Meier method and compared by the log-rank test.
The duration was calculated using the standard WHO criteria.
Data were extracted from the included studies, and the weighted mean follow-up duration was calculated, using the number of patients within each study as a weight.
The survival duration was calculated using the Kaplan Meier method and analyzed by the log-rank test and Cox' regression analysis to compare the cumulative survival durations in the patient groups.
The remaining duration imputations were calculated using the most common duration value for product only, or were assumed to have been 1 day (Steps 2 and 3 in the duration imputation process).
Patient and provider durations of symptoms were calculated using figures rounded to the nearest month to avoid implying accuracy that may be spurious.
Sleep duration and fragmentation were calculated using Actiware 3.4 software, supplied by the manufacturer.
