Pitfalls of pharmacoepidemiology

3 Jick et al found that, both before and after the warning in October 1995, the risk of venous thromboembolism in women using third generation oral contraceptives was about twice that in users of preparations containing levonorgestrel. [...]fewer cases occurred after the warning than would have been...

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Veröffentlicht in:	BMJ 2000-11, Vol.321 (7270), p.1171-1172
1. Verfasser:	Skegg, David C G
Format:	Artikel
Sprache:	eng
Schlagworte:	Birth control Contraceptives, Oral - adverse effects Data Collection - standards Databases, Factual - standards Epidemiology Female Health risk assessment Hormone replacement therapy Humans Pharmacology Studies Thromboembolism Thromboembolism - chemically induced Venous Thrombosis - chemically induced Women
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Zusammenfassung:	3 Jick et al found that, both before and after the warning in October 1995, the risk of venous thromboembolism in women using third generation oral contraceptives was about twice that in users of preparations containing levonorgestrel. [...]fewer cases occurred after the warning than would have been expected if the prescribing of oral contraceptives had not changed.
ISSN:	0959-8138 0959-8146 1468-5833
DOI:	10.1136/bmj.321.7270.1171