Joint associations of anthropometric indices and C-reactive protein-triglyceride-glucose index with incident hypertension: a stratified analysis by blood pressure level from the CHARLS, 2011–2020

These anthropometric indices and CTI effectively predicted hypertension risk across populations with different baseline blood pressures, both independently and in combination. Among all evaluations, the combination of BRI and CTI emerged as the optimal approach, most robustly associated with incident hypertension and providing the greatest improvement in risk discrimination and reclassification.