2020
DOI: 10.1136/bmjopen-2019-034305
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Constructing treatment episodes from concomitant medication logs: a prospective observational study

Abstract: ObjectivesTo describe an approach using concomitant medication log records for the construction of treatment episodes. Concomitant medication log records are routinely collected in clinical studies. Unlike prescription and dispensing records, concomitant medication logs collect utilisation data. Logs can provide information about drug safety and drug repurposing.DesignA prospective multicentre, multicohort observational study.SettingTwenty-one clinical sites in the USA, Europe, Israel and Australia.Participant… Show more

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Cited by 4 publications
(3 citation statements)
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“…9 The choice of exposure measure is one of many aspects of rigorous study planning. Other aspects include choosing the exposure and outcome, how to construct treatment episodes 35 and statistical approaches. 11 For a time-varying exposure, a censoring approach stops follow-up at the end of the first treatment episode.…”
Section: Discussionmentioning
confidence: 99%
“…9 The choice of exposure measure is one of many aspects of rigorous study planning. Other aspects include choosing the exposure and outcome, how to construct treatment episodes 35 and statistical approaches. 11 For a time-varying exposure, a censoring approach stops follow-up at the end of the first treatment episode.…”
Section: Discussionmentioning
confidence: 99%
“…For example, "LEVODOP," "LEVODAP," and "L-DOPA" were replaced by levodopa. The mean value was considered for cases where the same type of medication was used simultaneously with variable doses 29 .…”
Section: Methodsmentioning
confidence: 99%
“…Treatment episodes were defined as the events from the start to the end of the administration of a medication [43][44][45][46][47][48]. We constructed concomitant treatment episodes as the intervals of time when two different drug prescriptions were contemporaneously active.…”
Section: Construction Of Concomitant Treatment Episodesmentioning
confidence: 99%