Shellenberger J

STUDY QUESTION: What is the incidence of premature ovarian insufficiency (POI) and its associated factors in Ontario, Canada, between 1995 and 2019? SUMMARY ANSWER: The incidence of POI increased after 2011, driven primarily by non-iatroge…

Study questionTo what extent does multiple birth mediate the association between fertility treatment and congenital anomalies?Summary answerMultiple birth explained only a modest proportion of the increased risk of congenital anomalies asso…

BACKGROUND: Maternal chronic conditions are implicated as risk factors for congenital anomalies, but few studies have assessed reproductive conditions such as endometriosis. Given the association between endometriosis and infertility requir…

We completed a retrospective population-based cohort study using administrative data from Ontario female patients from 1993 to 2015 to examine the association between a diagnosis of endometriosis and stroke. We identified 166 853 female pat…

Endometriosis is a chronic inflammatory condition that has been linked to mental health outcomes. We conducted a population-based, retrospective, matched cohort study using administrative health data (2010-2022) from Ontario, Canada, to ass…

STUDY QUESTION: Are different types of thyroid cancer treatment among young women associated with adverse reproductive outcomes? SUMMARY ANSWER: All types of thyroid cancer treatment were associated with infertility diagnosis and early men…