Control groups in randomized trials rarely get big play.
But the control group in a large trial aimed at HIV prevention appears to show that an eight-week program of health promotion increases healthy behavior, according to Willo Pequegnat, PhD, of the National Institute of Mental Health in Bethesda, Md., and colleagues.
The trial, first reported last year, showed that an eight-week education program reduced HIV transmission between members of African-American serodiscordant couples (in which one person is HIV-positive and the other is not).
That reduction was compared with a control group -- similar couples who took part in a program aimed at improving health-related behaviors, including taking more exercise, eating better, and getting screened for some cancers.
Complete article at Med Page Today : http://bit.ly/h8hcYx