New Study Casts Doubt on the Association Between Third-Generation Pills and Venous Thromboembolism

The role of prescribing and referral bia

The role of prescribing and referral bias in studies of the association between third generation oral contraceptives and increased risk of thromboembolism

✍ Nicholas Dunn; Ian White; Shayne Freemantle; Ronald Mann 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 195 KB 👁 1 views

Recently published papers have shown a slightly increased risk for venous thromboembolism (VTE) among users of third generation oral contraceptive pills (OC) as compared with users of second generation OC. The extra risk is small (about twofold) and could be explained possibly by biases introduced i