Using the waiting time distribution with random index dates to estimate prescription durations in the presence of seasonal stockpiling.
Katrine BødkergaardRandi M SelmerNina Sahlertz KristiansenLars J KjerpesethJesper HallasEva SkovlundEeva-Liisa Røssell JohansenPublished in: Pharmacoepidemiology and drug safety (2020)
In the presence of seasonal stockpiling, the WTD with random index dates provides estimates of prescription durations, which are more stable, less biased and with better coverage when compared to using a fixed index date.