2. Secondary target population: refers to people who are closely related to the primary target population and have certain influence on their beliefs, attitudes and behaviors. Such as husbands, parents, relatives, friends and companions of pregnant women and nursing mothers in breastfeeding community health education programs. Family members, patients and medical staff of patients with hypertension are all involved in health intervention to prevent stroke.
3. Three-level target population: refers to people who have a significant impact on the implementation and success of the plan. Such as leadership, administrative decision makers and economic supporters.