Table 1

PEO framework for systematic review search

PEO framework
PopulationTransgender women, transfeminine, gender-diverse and/or non-binary individuals
Exposure of InterestSerum oestradiol levels resulting from GAOT use
Outcome1°: incidence of adverse cardiovascular events (e.g., MI)
2°: incidence of cardiovascular-related mortality
3°: changes in cardiovascular risk factors (e.g., blood pressure)
  • GAOT, gender-affirming oestrogen therapy; MI, myocardial infarction ; PEO, population, exposure of interest, outcome.