In Reply.—In answer to Dr Stirba, we also, of course, wondered whether a difference in the vigor of the cardiopulmonary resuscitation effort might explain the lesser rate of cardiopulmonary resuscitation success in patients with acquired immunodeficiency syndrome. In fact, a sizable portion of our article deals with this very problem. As indicators of the attempt's vigor, we chose the duration of the resuscitation attempt and the number of temporary pacemakers inserted. We found only a small and statistically insignificant difference in the duration of the cardiopulmonary resuscitation attempts. The difference in pacemaker insertions was marked, but still statistically not significant.
We also considered that if socialpsychological factors play a role in the lesser rate of cardiopulmonary resuscitation success in patients with acquired immunodeficiency syndrome, the role may vary with the kind of risk group involved.
We hypothesized that intravenous drug abusers elicit less sympathy than gays and that they