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Systemic Estrogen Use and Discontinuation After Alzheimer’s Disease Diagnosis in Finland 2005–2012: A Nationwide Exposure-Matched Cohort Study
Ist Teil von
Drugs & aging, 2018-11, Vol.35 (11), p.985-992
Ort / Verlag
Cham: Springer International Publishing
Erscheinungsjahr
2018
Quelle
MEDLINE
Beschreibungen/Notizen
Background
It is unknown whether cognitive status or diagnosed cognitive decline affects estrogen use.
Objectives
We assessed how common systemic estrogen use was among community-dwellers with Alzheimer’s disease (AD) and a matched comparison cohort without AD.
Methods
This study included an exposure-matched cohort of all Finnish community-dwelling women who received a clinically verified diagnosis of AD in 2005–2011 (
N
= 46,116; index cases) and an equally sized matched comparison cohort without AD. Follow-up began on the matching date (date of the AD diagnosis of the index case). Data on systemic estrogen use were obtained from the prescription register. Use initiation and discontinuation were assessed.
Results
Altogether 3.1% of women with AD and 4.3% of women without AD used estrogen during the follow-up period. Only < 0.5% initiated use during the follow-up period, but 3.7% continued use until death. The prevalence of estrogen use 1 year after the AD diagnosis declined in 2005–2011.
Conclusions
There were no major differences in systemic estrogen use among Finnish women with AD when compared to those without AD. Although some persons initiated estrogen use after AD diagnosis and/or at an advanced age, the observed use patterns were mainly consistent with the current recommendations.