Fig. 3. Hazard ratio (HR) and 95% confidence interval (CI) for the incidence of diabetes according to body weight change in the subjects with unstable metabolically healthy normal weight (MHNW) versus stable MHNW and in the subjects with unstable metabolically healthy obese (MHO) versus stable MHO. The reference group contains subjects who remained metabolically healthy over a 4-year follow-up, stable MHNW and stable MHO.