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Figure 4 Relative hazards (RH) and 95% confidence intervals (CI) of sustained normal blood pressure (SNBP), white-coat hypertension (WCHT), masked hypertension (MHT), and sustained hypertension (SHT) for risk of the composite of cardiovascular disease (CVD) mortality/stroke morbidity by CVD risk profile. Low-risk group, patients without history of CVD or diabetes and with no risk factors; Middle-risk group, patients without history of CVD or diabetes but with one to two risk factors; High-risk group, patients with history of CVD or diabetes or with three risk factors. Numbers inside bars indicate 95% CI. The SNBP group was treated as the reference category.