Download - All About Ecologic Model
THE
ECOLOGIC MODEL
Prepared & Reported by:
Lucky P. Roaquin, RN
AMS II
LEARNING OBJECTIVES
• Understand the historical overview of ecologic
model;
• Conceptualize the four core principles of
ecologic model;
• Apply ecologic models for its main purpose; and
• Justify strengths and limitations of ecologic
model
LEARNING CONTENTS
• Background & History of Ecologic Models
• Guiding Principles of Ecologic Models
•Types of Ecologic Model
• Application of Ecological Models to Health Behavior
DEFINITION OF TERMS
ECOLOGIC MODEL
- Provide comprehensive frameworks for
understanding the multiple and interacting
determinants of health behavior.
BACKGROUND & HISTORY OF
ECOLOGIC MODELS
• „Ecology‟
• Based on a rich conceptual tradition in the
behavioral sciences
• Accdg. to Stokols (1992), ecologic models focus
on the nature of people‟s transactions with their
physical and socio-cultural surroundings.
GUIDING PRINCIPLES OF ECOLOGIC
MODEL
4 Principles of Ecologic Model
1. Multiple levels of factors influence
perspectives are proposed.
2. Influences interact across levels
3. Multi-level interventions should be most
effective in changing behavior
4. Ecological models are most powerful when
they are behavior-specific
TYPES OF ECOLOGIC MODEL
1. Clark-Leavell Triad Model
• There are three interactive factors that affect
health and illness
TYPES OF ECOLOGIC MODEL
2. Lever Model
• Used to show the relationship between the
host, agent and environment
ENVIRONMENT
AGENT HOST
TYPES OF ECOLOGIC MODEL
3. Web Causation Model
• Works with complex disease etiologies and
co-factors.
TYPES OF ECOLOGIC MODEL
4. Wheel of Causation
• contains a hub with the host at its center surrounded by multi-factorial variables that
illustrate the multiple etiological factors of human infectious diseases
TYPES OF ECOLOGIC MODEL
5. Rothman‟s Pie • A cause of a disease is an event, condition, or
characteristics that plays an essential role in
producing an occurrence of the disease
TYPES OF ECOLOGIC MODEL
6. Systems Theory Model
• used to organize and demonstrate complex interactions between systems using a theoretical base
APPLICATION OF ECOLOGIC MODEL
TO HEALTH BEHAVIOR
SAMPLE ECOLOGIC MODEL
Mr. M
• 75 y/o
• Retired accountant
• 185 lbs
• plays golf every weekend
• loves to eat “festive foods”
• smokes and drinks alcohol for 28 years
• HPN for 15 years, poorly managed (+) father
• DM for 6 years, poorly controlled (+) father
SAMPLE ECOLOGIC MODEL
Mr. M
• Diagnosed to have CHF a year ago
• Had attacks of HPN with chest pains
(substernal)
• With pacemaker inserted on R chest
Ecologic Model: Web Causation
SAMPLE ECOLOGIC MODEL
Age
Diet
Family Hx
Lack of exercises
Smoker
Alcohol Drinker
DM
Chest Pain
CHF
Pacemaker
HPN
SAMPLE ECOLOGIC MODEL
Mr. Z
• 46 y/o
• tricycle driver for 8 years
• smoker since 14 years old; ocassional alcohol
drinker
• residing at Blumentritt, Tondo, Manila
• lives with family (wife, 6 children)
• eat twice daily (lunch and dinner)
• no immunization since birth
SAMPLE ECOLOGIC MODEL
Mr. Z
• diagnosed to have PTB (controlled and under
medication)
• PTB patient was suspected in the neighborhood
• still with productive cough, night chills, and chest
pains
Ecologic Model: Triad Model/Lever Model
SAMPLE ECOLOGIC MODEL
A. Triad Model
Agent
Host Environment
SAMPLE ECOLOGIC MODEL
B. Lever Model
ENV
Agent
Host
Further
Question/s
Maraming Salamat!!!!