The product of waist-to-height ratio and glycated hemoglobin, a novel predictor of diabetes in East Asian populations: insights from two large East Asian cohort studies

WHH is positively associated with diabetes risk in East Asian populations. Compared to other clinical metabolic indicators, baseline WHH demonstrates superior predictive performance for future diabetes risk, especially over medium-to-long-term periods. We recommend maintaining WHH below 2.489 through dietary calorie control and waist circumference management to reduce diabetes risk in healthy individuals.