Association of T2DM with hypertension and WHtR transitions in CHARLS 2011–2018. Note: the model was adjusted for age, hukou, residence, education, marital status, self-reported health, BMI, smoking, alcohol consumption, and dyslipidemia. HR: hazard ratio; CI: confidence interval. Subgroup I, stable NHNW; subgroup II, transition from NHNW to HTNW; subgroup III, from NHNW to NHEW; subgroup IV, from NHNW to HTEW; subgroup V, stable HTNW; subgroup VI, from HTNW to HTEW; subgroup VII, from NHEW to NHNW/HTNW; subgroup VIII, stable NHEW; subgroup IX, from NHEW to HTEW; subgroup X, from HTEW to HTNW; subgroup XI, stable HTEW. Subgroup I served as the reference group.