Study tracks 48,000 adults over five years
Researchers at the University of California, San Francisco analyzed data from 48,000 adults aged 40-79 with diagnosed hypertension. Participants who checked their blood pressure at home at least twice weekly showed lower average readings over the study period and were more likely to have their medication adjusted appropriately. The findings were published June 26 in JAMA Cardiology.
Mechanisms behind the benefit
The researchers identified two main factors driving the improved outcomes. First, home monitoring gave patients a more accurate picture of their blood pressure, avoiding "white coat syndrome" that artificially elevates readings at clinics. Second, patients who self-monitored were 35% more likely to adhere to their medication schedules, as the daily feedback reinforced the importance of treatment.
New guidelines may shift practice
The American Heart Association is reviewing the findings and may update its guidelines to recommend routine home monitoring for all hypertension patients. Currently, about 45% of US adults with high blood pressure own a home monitor, but fewer than half use it regularly. The study's authors suggest health insurers should cover home monitors more broadly.