“…6 The authors randomized 4800 emergency department patients, who were aged 13-64 years, had a variety of medical complaints, and were not already known to be infected with HIV, to one of the three arms, with acceptance of a test as the outcome. Across the three study groups-opt-in, active choice, and opt-out-test acceptance percentages were 38%, 51%, and 66%, respectively, supporting opt-out consent as the superior method.…”