Informed consent: views from Karachi.

Little is known about the public's perceptions about the process of obtaining informed consent for participation in medical research. A study was made of the views of patients, their attendants, parents, schoolteachers and office workers living in Karachi, Pakistan. Participants felt that informed consent was an important step in recruiting research participants but many felt that it was a trust-based process not requiring proper documentation. For recruiting women, both men and women believed it was important to approach women through their husbands and fathers. When there was a conflict with the opinions of family leaders, it was clear that the male participants' opinion was valued more than that of the female participants by both men and women.