IRCT2014082018872N1 IRCT 2014-10-22 Arak University of Medical Science Effect of multimedia on nutritional behavior for preventing hypertension Evaluation of the effect of educational multimedia based on Trans-theoretical Model on nutritional behavior for preventing hypertension among women over 30 2014-08-06 anticipated 100 Complete https://irct.ir/trial/17005 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Prevention. N/A hypertension. Intervention 1: A multi media based on Trans-theoretical Model is given to the intervention group. This multimedia has four educational sessions which they have to see it, every session in a week. After three months, they will be evaluated by questionnaire again. Intervention 2: Control group don’t have any intervention, but after three months they will be evaluateed with the same questionnaire. After study will be given to the control group of the same multimedia too.