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Adjustment for continuous confounders: an example of how to prevent residual confounding.
Groenwold RH, Klungel OH, Altman DG, van der Graaf Y, Hoes AW, Moons KG; PROTECT WP2 (Pharmacoepidemiological Research on Outcomes of Therapeutics by a European Consortium, Work Programme 2 [Framework for pharmacoepidemiology studies]). Groenwold RH, et al. Among authors: van der graaf y. CMAJ. 2013 Mar 19;185(5):401-6. doi: 10.1503/cmaj.120592. Epub 2013 Feb 11. CMAJ. 2013. PMID: 23401401 Free PMC article. Review. No abstract available.
Limitations of ranking lists based on cardiac surgery mortality rates.
Siregar S, Groenwold RH, Jansen EK, Bots ML, van der Graaf Y, van Herwerden LA. Siregar S, et al. Among authors: van der graaf y, van herwerden la. Circ Cardiovasc Qual Outcomes. 2012 May;5(3):403-9. doi: 10.1161/CIRCOUTCOMES.111.964460. Circ Cardiovasc Qual Outcomes. 2012. PMID: 22592754 Free article.
Performance of the original EuroSCORE.
Siregar S, Groenwold RH, de Heer F, Bots ML, van der Graaf Y, van Herwerden LA. Siregar S, et al. Among authors: van der graaf y, van herwerden la. Eur J Cardiothorac Surg. 2012 Apr;41(4):746-54. doi: 10.1093/ejcts/ezr285. Epub 2012 Jan 26. Eur J Cardiothorac Surg. 2012. PMID: 22290922 Review.
Gaming in risk-adjusted mortality rates: effect of misclassification of risk factors in the benchmarking of cardiac surgery risk-adjusted mortality rates.
Siregar S, Groenwold RH, Versteegh MI, Noyez L, ter Burg WJ, Bots ML, van der Graaf Y, van Herwerden LA. Siregar S, et al. Among authors: van der graaf y, van herwerden la. J Thorac Cardiovasc Surg. 2013 Mar;145(3):781-9. doi: 10.1016/j.jtcvs.2012.03.018. Epub 2012 Apr 14. J Thorac Cardiovasc Surg. 2013. PMID: 22507843 Free article.
Expected and unexpected gallstones in primary care.
Speets AM, Van der Graaf Y, Hoes AW, Kalmijn S, De Wit NJ, Mali WP. Speets AM, et al. Among authors: van der graaf y. Scand J Gastroenterol. 2007 Mar;42(3):351-5. doi: 10.1080/00365520600863639. Scand J Gastroenterol. 2007. PMID: 17354115
[Evaluation of added value of diagnostic tests].
Moons KG, van der Graaf Y. Moons KG, et al. Among authors: van der graaf y. Ned Tijdschr Geneeskd. 2000 Jun 24;144(26):1256-61. Ned Tijdschr Geneeskd. 2000. PMID: 10908955 Review. Dutch.
641 results