The ecological model emphasizes how social and physical environments shape health risk behaviors. It focuses on the relationships between individual, interpersonal, institutional, community, and policy factors that influence behaviors. The core concept is that behavior is affected by multiple levels of influence, so the model is used to design interventions that address factors at each level.

1. ECOLOGICAL MODEL

2. AN ECOLOGIC OR POPULATION MODEL EMPHASIZES THE IMPORTANCE OF THE SOCIAL
AND PHYSICAL ENVIRONMENTS THAT STRONGLY SHAPE PATTERNS OF HEALTH RISK
BEHAVIORS. ECOLOGICAL MODELS OF HEALTH BEHAVIOR EMPHASIZE THE ENVIRONMENTAL
AND POLICY CONTEXTS OF BEHAVIOR, WHILE INCORPORATING SOCIAL AND
PSYCHOLOGICAL INFLUENCES.
IT FOCUSES ON THE LINKAGES AND RELATIONSHIPS AMONG MULTIPLE FACTORS (OR
DETERMINANTS) AFFECTING HEALTH.

3. • The core concept of ecological model is that behavior has influences
from multiple scales including individual, Interpersonal, institutional,
and community
As such it is used to design and evaluate environmental interventions.
Mathematical epidemiologists and health economists have considered
some models for health risk behaviors

4. • The ecological model recognizes multiple levels of influence on
health behaviors which are as fallows.
• Individual / intrapersonal factors.
• Interpersonal factors
• Institutional and organisational factors.
• Community factors
• Public policy factors.

6. • Examples of ecological models
• Project heart
• Health education awareness research team used an ecological model
to design health promotion and disease prevention to address
cardiovascular disease risk factors.
• CDC’S COLORECTAL CANCER CONTROL PROGRAM CRCCP.
• Was designed to address multiple factors of influence on colorectal
cancer prevention using ecological model components.