Superiority of Ambulatory Over Clinic Blood Pressure Measurement in Predicting Mortality

Abstract—The purpose of this study was to determine if ambulatory,blood pressure measurement,predicted total and cardiovascular mortality over and beyond clinic blood pressure measurement,and other cardiovascular risk factors; 5292 untreated hypertensive patients referred to a single blood pressure clinic who had clinic and ambulatory blood pressure measurement,at baseline were followed up in a prospective study of mortality outcome. Multiple Cox regression was used to model time to total and cause-specific mortality for ambulatory,blood pressure measurement,while adjusting for clinic blood pressure measurement,and other risk factors at baseline. There were 646 deaths (of which,389 were cardiovascular) during a median follow-up period of 8.4 years. With adjustment for gender, age, risk indices, and clinic