Roanoke Times Copyright (c) 1995, Landmark Communications, Inc. DATE: WEDNESDAY, March 4, 1992 TAG: 9203040152 SECTION: NATIONAL/INTERNATIONAL PAGE: A1 EDITION: METRO SOURCE: Associated Press DATELINE: CHICAGO LENGTH: Medium
Forty million to 70 million Americans have "high normal" blood pressure of the type analyzed in the study, said the lead author, Dr. Paul K. Whelton of Johns Hopkins University School of Hygiene and Public Health.
People with high-normal blood pressure have an increased likelihood of developing high blood pressure, or hypertension, an important contributor to strokes, heart disease and kidney failure.
Whelton said the study of 2,132 subjects examined seven treatments that had been thought to be helpful. The subjects were divided into groups of 175 to 417 and given one of the treatments.
"We're able to say at the end of 18 months that weight loss and sodium restriction seem to be the winners," he said.
The other approaches were clearly ineffective, he said, adding that previous studies have been too small to determine whether such interventions were effective. The other approaches were stress management, including relaxation training and stress avoidance, and the dietary supplements calcium, magnesium, potassium and fish oil.
Dr. David McCarron of the Oregon Health Sciences University in Portland, citing other studies, said he did not think the new study would end the debate over salt and dietary supplements.
But Dr. Thomas G. Pickering, of the New York Hospital-Cornell University Medical Center, agreed with Whelton.
"There may be subgroups of patients who will respond" to stress management and dietary supplements, he said in an editorial accompanying the study, published in today's Journal of the American Medical Association.
by CNB