Target of public health approaches.
The shifting role of behaviour ( simple-complex)
Behavioural risk factors (itself- determinant-consequent)
determinants of behaviour
Public health strategies to influence determinants of behaviour
The interaction of socioeconomic status (SES), environments, and behaviour
Denormalizing behaviour
Public health interventions and conclusion
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Behavioral determinant
1. Lawrence W. Green and Robert A. Hiatt
Oxford Textbook of Public Health
2.
Target of public health approaches.
The shifting role of behaviour ( simple-complex)
Behavioural risk factors (itself- determinantconsequent)
determinants of behaviour
Public health strategies to influence determinants of
behaviour
The interaction of socioeconomic status (SES),
environments, and behaviour
Denormalizing behaviour
Public health interventions and conclusion
3.
control or cajole the healthrelated behaviour of
individuals.
protect individuals from the
behaviour of others, and
mobilize the behaviour of
groups to influence healthrelated social and physical
environments.
5.
the simple and discrete behavior can be
influenced directly by health education
targeted at individuals and groups.
complex behavior required combination of
educational, organizational, economic,
and environmental interventions in
support of changes in both behaviour and
conditions of living.
6.
Some behaviour clearly increases the risk of
developing disease.
Other behaviours correlate with and precede
better health, but their causal link is more
tenuous.
many behaviours are, in fact, contributing causes
(causal risk factors) of specific diseases.
the easiest examples of clear causal linkages are
those established for single action behaviours
such as ingesting a contaminated food
7. Sep 20, 2007 issue of the New England Journal of Medicine,
Dr. Steven A.
8. Sep 20, 2007 issue of the New England Journal of Medicine,
Dr. Steven A.
10.
intentionally most dramatic
(automobile, gun)
Unintentionally most
dramatic (toxic substances,
slippery surface)
Less dramatic , but no less
lethal (DI, smoking, alcohol,
inactivity)
11.
behaviour remains a critical
mediator of the relationships
between environmental measures
and health outcomes.
improvement of the socioeconomic
condition is accompanied by a shift
in mortality
the three most important predictors
of infant mortality rates were
households sanitation, literacy rate,
and safe water.
12.
Genes, via their influences on morphology
and physiology, create a framework within
which the environment acts to shape the
behavior of an individual.
Genes also create the scaffold for
learning, memory, and cognition that can
be used in shaping behavior.
The environment can affect morphological
and physiological development; in turn
behavior develops as a result of that
mechanism.
15. 1- Educational strategies inform
and educate the public about
issues of concern such as :
the dangers of drug misuse,
the benefits of automobile
restraints,
the relationship of maternal
alcohol consumption to foetal
alcohol syndrome.
…..
16. 2- Automatic-protective strategies are directed
at controlling environmental variables, that
minimize the need for individual decisions in
structuring each behaviour, such as:
milk pasteurization,
fluoridation,
infant immunizations, and
the burning of marijuana crops.
……………….
17. 3- Coercive strategies employ legal and other
formal sanctions to control individual
behaviour, such as:
required immunizations for school entry,
mandatory tuberculosis testing of hospital
employees,
compulsory use of automobile restraints.
arrests for drug possession or use.
…………
18.
Population behavioural and educational
diagnoses enable public health to intervene
strategically on the behaviour of populations.
But health problems have other determinants
in the environment and in genetics.
Behaviour also can play a role in influencing
those determinants.
19.
Through Human Genome Project genetics
information became available to individuals.
The first assumption remains to be supported
by true evidence of effectiveness
(susceptibility to illness-sensitivity to drug)
The second assumption, that having such
information would motivate more concerted
effort to change one's behaviour
20.
the limited influence of the genes so far
implicated in specific mortality or morbidity
outcomes, and their interactions with the
environment .
the ethics of offering such information to the
individual with anything more than a
cautionary note of possible relevance to their
reproductive decisions or their behavioural
choices
21.
The threshold effects are
sometimes found beyond
income or other SES
indicators.
The gradient adheres
whether the SES measure
is education, income,
occupational status, or
place of residence
22.
SES as a predisposing determinant of
behaviour
SES as an enabling determinant of behaviour
The educational enabling influence of SES on
behaviour
The cultural-environmental predisposing
influence of SES
SES as a reinforcing determinant of
behaviour
The ‘status identity factor’ and social norms
23.
‘denormalization’ of smoking behaviour in
public places. legal restrictions- social norms
The combination of new smoke-free or ‘clean
air’ ordinances and by-laws with mass media
emphasizing the carcinogenic properties of
second-hand smoke and the rights of nonsmokers
24.
These differences cannot be attributed solely
to biological determinants related to sexual
differentiation
The social construct of gender, as opposed to
the biological categories of sex, was
conceptualized to refer to cultural and social
conventions, roles and behaviours assigned
to men and women
The gender interactions with SES and health
have been variously attributed to differential
occupational experiences
25.
The dynamic relationships among
the specific measures creates a
complex system of social,
economic, cultural, and
behavioural factors.
The system interwoven with
disease risk factors and health
status, and influenced by the
healthcare and physical
environments.
27.
direct communications to influence the
knowledge, attitudes beliefs, and perceptions of
the population concerning the behaviour-health
relationship;
indirect communications through social
organizations, parents, peers, employers, and
others who control rewards and approval that
would reinforce behaviour.
legal, engineering, financial, organizational levers
and resource development that would enable or
prohibit the behaviour.
28.
Behaviour is an inescapable link in the chain of
causation between most environmental and genetic
determinants and the health outcomes in which they are
implicated.
The social environment presents a further complexity in
the mediating and moderating of behaviour and
environment in their determination of population health.
The individuals are acting upon, and in reaction to, each
other as their health outcomes are being shaped by
their actions.
Editor's Notes
Simple, discrete behaviours account for many of the infections and injuries of the past. Today's growing chronic disease burden relates more to complex behaviours. We use the term ‘complex behaviour’ to refer to combinations of interrelated practices and their environmental contexts, reflecting patterns of living influenced by the family and social history of individuals and communities, their environmental and socioeconomic circumstances, and their exposure to cultures and communications. We know that discrete behaviours can be influenced directly by health education targeted at individuals and groups. Complex behaviour changes more slowly and usually requires some combination of educational, organizational, economic, and environmental interventions in support of changes in both behaviour and conditions of living. This combination of strategies has defined health promotion and public health programmes addressing complex behaviour change (Green & Kreuter 2005; Smith et al. 2006).
Obesity and HIV/AIDS present the obvious contemporary examples of health-related conditions and diseases awaiting technological solutions, for which behaviour, in the meantime, is a necessary route of intervention and change. Virtually every public health breakthrough has had a behavioural change process that served the public until the technology was at hand. Then, behavioural change processes were needed to diffuse, adapt, and apply the new technology to varying cultural and social circumstances. Unless and until an obesity prevention vaccine or HIV vaccine is developed, society must depend on behavioural preventive measures to curb the spread of obesity and AIDS. These include, of course, policies, environmental changes, and health educational programmes that support behavioural changes.
Much of the early success in controlling HIV infections through change in sexual practices (especially use of condoms) among men in urban gay communities appear to have been in response to health education programmes (Petrow 1990). Reviews also show increases in the use of clean needles for at least 15 years among intravenous drug users (e.g. Wodak 2006), which has required a combination of policy and educational interventions to make clean needles accessible and more acceptable than the culture of needle-sharing. Evidence that health education leads to the regular use of condoms among sexually active adolescents, however, has not held up consistently (James et al. 2006; Koniak-Griffin & Stein 2006; Walker et al. 2006). The parallel lessons from the success of tobacco control programmes also point to the need for combined policy,
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regulatory, organizational, environmental, and educational interventions to influence population changes in tobacco consumption (Eriksen et al. 2007) and many of the same types of interventions are under consideration for obesity control (Mercer et al. 2005).
Single cause
Multiple
actions people take, consciously or unconsciously, that can have an immediate or cumulative effect on their health status. The effect on health may be intended (health-directed) or unintended (health-related), but the behaviour is nevertheless direct in its effect. The most dramatic of these are the violent injury-causing actions people may take behind the wheel of an automobile, with weapons, or unintentionally with the careless use of tools or toxic substances or merely walking absent-mindlessly on a slippery or cluttered surface. Less dramatic, but no less lethal, are the cumulative little actions people take each time they light a cigarette, imbibe or inject an addictive or mind-altering substance, or abide by neglect of physical activity or healthful foods.
the three most important predictors of infant mortality rates to be percentage of households with sanitation, total literacy rate, and the percentage of households without safe water. The major public health goals in developing nations have related to the provision of immunization, access to a sufficient supply of clean water, and the installation of proper sanitation facilities (WHO 1981). But the more recent Millennium Development Goals (MDG) aim to cut global poverty by half by the year 2015
Both positive and negative behaviours are predisposed, enabled, and reinforced by forces in the culture and the environment. This broad categorization has proved useful in public health programme planning (with more than 970 published applications, see www.lgreen.net for bibliography)
Predisposing factors that reside in the individualThey include the cognitive and affective dimensions of knowing, feeling, believing, valuing, and having self-confidence or a sense of self-efficacy.
Enabling factors are often conditions of the environment that facilitate (or impede) the performance of a predisposition or motivated action by individuals or groups
Reinforcing factors are strengthening a behavioural tendency through encouragement and motivation. We have to shift fro extrinsic to intrinsic reinforcement
but these often involve individual and group decisions and actions about which policies to support, since they limit degrees of freedom in choice of behavioural options.