Other countries have implemented surveillance systems. The U.S. National Health and Nutrition Examinations Surveys (NHANES) I to III have evaluated population-based programmes by measuring the number of people diagnosed as having hypertension, the number undergoing treatment, and the number whose blood pressure is under control.124 The WHO MONICA project collected information on coronary heart disease risk factors in 40 populations of men and women aged 35-65.
Mais, ce qui est plus important encore, c’est que cette baisse importante des tensions artérielles moyennes a eu un effet notable sur la mortalité due aux maladies cardiovasculaires et aux accidents vasculaires cérébraux.