Risk of idiopathic cerebral haemorrhage in women on oral contraceptives with differing progestagen components.

Jick, S S; Myers, M W; Jick, H · Lancet · 1999

retrospective_cohort · Level III

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Abstract

The risk of idiopathic cerebral haemorrhage in users of third-generation oral contraceptives compared with that of users of second-generation oral contraceptives was evaluated using data from the General Practice Research Database. We found no increased risk for third-generation oral contraceptives, compared with second-generation oral contraceptives.

Medical subject headings