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To the Editor Hypertension is the leading risk factor for death and disability worldwide. Dr Chow and colleagues1 provided statistics on prevalence, awareness, treatment, and control of hypertension among selected high-, middle-, and low-income countries. The proportions of hypertension, awareness, treatment, and control reported in this article were strikingly different from other studies.2- 4
Rahman MM, Gilmour S. Prevention and Control of Hypertension in Different Countries. JAMA. 2014;311(4):418-419. doi:10.1001/jama.2013.285324