#First and second year after index date (date of including first patient in trial-conducting practices and randomly selected date in non–trial-conducting practices). - https://www.fyam.dk/files/23/artikel_6._andersen.pdf - page 3 (ostatnia linia w stopce pod rubryką)

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Note added at 2 hrs (2018-09-14 09:32:50 GMT)
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FF/VI 100/25
Subjects who received FF/VI (100 milligram [mg]/25 mg) and were continuously enrolled in the health plan for 12 months prior to the index date (date of treatment initiation) and for a minimum 3-month period following the index date

BU/FO 160/4.5
Subjects who received BU/FO (160 mg/4.5 mg) and were continuously enrolled in the health plan for 12 months prior to the index date (date of treatment initiation) and for a minimum 3-month period following the index date

https://www.gsk-clinicalstudyregister.com/study/206482?searc...

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For the 10 trial-conducting practices, the index date was the date the practice included the first patient in the trial. - https://jamanetwork.com/journals/jama/fullarticle/203038

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