BMJ 2010; 341 doi: https://doi.org/10.1136/bmj.c4309 (Published 18 August 2010) Cite this as: BMJ 2010;341:c4309

Rising levels of free thyroxine are a risk factor for a first venous thrombosis. Using data from a Dutch case-control study on leg vein thrombosis, researchers estimated risk of venous thrombosis according to several thresholds of thyroxine derived from plasma concentrations observed in controls. In the absence of traditional risk factors, levels of free thyroxine over 17 pmol/l yielded a sex and age adjusted odds ratio of 2.2 (95% confidence interval 1.2-4.2) for deep vein thrombosis (Blood 2010;115:4344-9 doi:10.1182/blood-2009-11-253724).

The EQUATOR network (an online library of guidelines for reporting research such as CONSORT, found at www.equator-network.org) will be translated into Spanish to help raise the quality of papers from Latin America with the help of the Pan American Health Organization (PAHO). The plan is to expand coverage to other …

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