The objective was accomplished in a two-phase approach as follows: Phase l. In June, 1994 a workshop was held in Washington, D.C. on the epidemiology of hypertension in minorities. The workshop, entitled "The Epidemiology of Hypertension in Hispanic Americans, Native Americans, and Asian/Pacific Islander Americans" included as participants the investigators who had relevant datasets and were willing to participate in the effort. The investigators were requested to use common definitions of hypertension in their workshop presentations when feasible. In addition, in preparation for a databook publication, each study was asked to provide summary data, using common definitions and a common format, on the prevalence of hypertension in the study population. Data presentations and interpretations at the workshop enabled the investigators and consultants to identify further research needs, further feasible data analyses utilizing available data, and special target groups for demonstration research efforts to enhance the potential success of intervention efforts.