Universial – focused on the entire population as the target – prevention through reducing risk and enhancing health
Selective – high risk groups, though not all members bear risks – prevention through reducing risks
Indicated – symptomatic and marked high risk individuals – interventions to prevent full-blown disorders or adverse outcomes
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Primary – before condition occurs (reduce or eliminate causative risk factors)
Secondary – during development of condition (early identification through screening and treatment)
Tertiary – after condition has occurred (prevent sequelae)