First results from the RATIO follow up study

Another article got published today in the JAMA Int Med, this time the results from the first analyses of the RATIO follow-up data. For these data, we linked the RATIO study to the dutch national bureau of statistics (CBS), to obtain 20 years of follow-up on cardiovascular morbidity and mortality. We first submitted a full paper, but later we downsized to a research letter with only 600 words. This means that only the main message (i.e. cardiovascular recurrence is high, persistent over time and disease specific) is left.

It is a “Leiden publication”, where I worked together with AM and FP from Milano. Most of the credit of course goes to AM, who is the first author of this piece. The cool thing about this publication is that the team worked very hard on it for a long time (data linking and analyses where not an easy thing to do, as well as changing from 3000 words to 600 in just a week or so), and that in the end all the hard work paid off. But next to the hard work, it is also nice to see results being picked up by the media. The JAMA Int Med put out an international press release, whereas the LUMC is going to publish its own Dutch version. In the days before the ‘online first’ publication I already answered some emails from writers for medical news sites, some with up to 5.000K views per month. I do not know if you think that’s a lot, but for me it is. The websites that cover this story can be found here (dagensmedisin.sehealio.commedicaldaily.com, medpagetoday.commedonline.atdrugs.com / healthday.com / webmd.com /  usnews.com / doctorslounge.commedicalxpress.commedicalnewstoday.comeurekalert.org and perhaps more to come. Why not just take a look at the Altmetric of this article).

– edit 26.11.2015: a dutch press release from the LUMC can be found here) – edit: oops, medpagetoday.com has a published great report/interview, but used a wrong title…”Repeat MI and Stroke Risks Defined in ‘Younger’ Women on Oral Contraceptives”. not all women were on OC of course.

Of course, @JAMAInternalMed tweeted about it

 

The article, with the full title Recurrence and Mortality in Young Women With Myocardial Infarction or Ischemic Stroke: Long-term Follow-up of the Risk of Arterial Thrombosis in Relation to Oral Contraceptives (RATIO) Study can be found via JAMA Internal Medicine or via my personal Mendeley page.

As I reported earlier, this project is supported by a grant from the LUF den Dulk-Moermans foundation, for which we are grateful.

New article published: the relationship between ADAMTS13 and MI

2015-06-16 14_26_12-Plasma ADAMTS13 levels and the risk of myocardial infarction_ an individual pati

this article is a collaboration with a lot of guys. initiated from the Milan group, we ended up with a quite diverse group of researchers to answers this question because of the methods that we used: the individual patient data meta-analysis. The best thing about this approach: you can pool the data from different studies, even while you can adjusted for potential sources of confounding in a similar manner (given that the data are available, that is). On themselves, these studies showed some mixed results. But in the end, we were able to use the combined data to show that there was an increase MI risk but only for those with very low levels of ADAMTS13. So, here you see the power of IPD meta-analysis!

The credits for this work go primarily to AM who did a great job of getting all PI’s on board, analysing the data and writing a god manuscript. The final version is not online, but you find the pre-publication on pubmed

 

 

Grant awarded to investigate the long term effects of cardiovascular disease at a young age

Today I got a letter from the Leiden University Fund (LUF) to inform me that the grant we requested was granted. This is great, because now we can investigate the long-term effects of young stroke, myocardial infarction and peripheral arterial disease. We will do this by linking our data from the RATIO to the several national databases (e.g. cause of death registries and hospital admissions) that are under control by the central bureau of statistics (CBS). I will perform this research together with AM and other Italian colleagues from Milan. 

The grant (11K) that was awarded is the Den Dulk Moermans Fonds, which exist since 2010, as we can read from the Dutch information the LUF website:

Het Den Dulk-Moermans Fonds is opgericht in 2010 na ontvangst van een erfenis van dhr. A.M. den Dulk. De doelstelling van het Fonds is het financieren van onderzoek naar gezondheid in de breedste zin van het woord.