The best follow-up effect in hypertension management is ()

The management object of low-risk population can be written materials of health education by mail or intervention measures by mail, which has the lowest cost but poor effect. Most patients with hypertension are managed by telephone intervention (including SMS notification), with moderate cost, high efficiency and moderate intervention effect. It takes about 20 minutes to interfere with each object through electrical activity. The cost of home visit is high, but the intervention effect is good. Because this method consumes a lot of manpower and material resources, it is recommended to use it only for the elderly, disabled patients or families with very difficult mobility.