There is substantial room for improvement in hypertension diagnosis and treatment globally, as less than half of hypertensive patients are aware of their diagnosis and only a third of treated patients achieve blood pressure control.
Among a multinational study population, 46.5% of participants with hypertension were aware of the diagnosis, with blood pressure control among 32.5% of those being treated. These findings suggest substantial room for improvement in hypertension diagnosis and treatment.
Clara K Chow (2013) studied this question.