From Reuters:
Menopausal women taking hormone-replacement therapy pills may be at risk in excess of two times normal of developing a blood clot.
"This meta-analysis ... showed that current use of oral oestrogen increases the risk of (blood clots) by two-fold to three-fold," Pierre-Yves Scarabin and Marianne Canonico of the Paul Brousse Hospital in France wrote.
Link is here.