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BACKGROUND The prevalence of prehypertension in the world reaches 20-25% with a figure that is still high in Indonesia (48.4%). The role of health promotion is substantial in an effort of prevention and treatment of hypertension. AIM This study aims to determine the difference of effect between health promotion using media slides presentation and with video in increasing knowledge and attitude regarding the prevention of hypertension in patients at risk hypertension at Puskesmas Amplas. METHODS his study uses a Quasi-Experimental design wh