Consent that is truly informed may not be truly voluntary, according to researchers at the South African Medical Research Council in Durban.
The researchers set out to evaluate informed consent to human immunodeficiency virus (HIV) testing obtained at the King Edward VIII Hospital antenatal clinic in Durban. They asked a randomly selected group of 56 women to complete questionnaires before and after they attended a counseling session about HIV testing. A control group of 56 women got only postcounseling questionnaires.
Voelker R. Is Informed Consent Voluntary?. JAMA. 1998;279(18):1429. doi:10.1001/jama.279.18.1429