Selection bias introduced by the informed consent process

Comment

Nina Hannover Bjarnason et al. Lancet. 2003.

. 2003 Jun 7;361(9373):1990.

doi: 10.1016/S0140-6736(03)13568-4.

No abstract available

Comment on

MRC/BHF Heart Protection Study of cholesterol lowering with simvastatin in 20,536 high-risk individuals: a randomised placebo-controlled trial.
Heart Protection Study Collaborative Group. Heart Protection Study Collaborative Group. Lancet. 2002 Jul 6;360(9326):7-22. doi: 10.1016/S0140-6736(02)09327-3. Lancet. 2002. PMID: 12114036 Clinical Trial.
Informed consent during the clinical emergency of acute myocardial infarction (HERO-2 consent substudy): a prospective observational study.
Williams BF, French JK, White HD; HERO-2 consent substudy investigators. Williams BF, et al. Lancet. 2003 Mar 15;361(9361):918-22. doi: 10.1016/s0140-6736(03)12773-0. Lancet. 2003. PMID: 12648970