What This Means
This study looked at more than 104,000 adults who had health check-ups in Southwest China. It compared five simple body measurements to see which best flags people who have high blood pressure: waist circumference (WC), body mass index (BMI), waist-to-height ratio (WHtR), a body shape index (ABSI), and body roundness index (BRI).
Four of the measures (WC, BMI, WHtR and BRI) were linked to roughly 56-61% higher odds of hypertension for each standard-deviation increase. ABSI was only weakly linked (9% higher odds). Waist-to-height ratio and body roundness index were best at telling people with and without hypertension apart overall (AUC 0.676), while ABSI was the weakest (0.612). The link between body measurements and hypertension was strongest in young adults (18-35 years) and became weaker with age. In that younger group, waist circumference performed best (AUC 0.763).
This research suggests that simple, low-cost body measurements could help with early screening for hypertension, and that the best measure may depend on a person's age. The study is cross-sectional, so it shows associations at one point in time and cannot show that body measurements cause high blood pressure. These measures are screening aids, not diagnostic tools.