Determinants of Health - TCE Health Studies (Tasmania) - Level 3 pre-tertiary notes
“Differentiate and analyse the key factors that influence the health of individuals and groups”
Determinants of health are the factors that influence how healthy a person or group is. They are usually grouped as biological, behavioural, social, economic and environmental. These determinants interact, often building on each other, so that disadvantage in one area (for example low income) flows through to others (poor housing, limited access to care), shaping unequal health outcomes across the population.
What this dot point is asking
This dot point asks you to identify the main determinants of health and explain how they work together to influence the health status of people and populations. You need to be able to differentiate between categories of determinants and analyse how they interact, rather than just list them.
What we mean by a determinant
A determinant of health is any factor that can raise or lower the chance of good health. Determinants operate at the level of the individual, the community and wider society. Some are difficult to change, such as age, sex and genetics, while others are modifiable, such as smoking, diet and physical activity. A central idea in Health Studies is that health is not simply the result of personal choice; the conditions in which people are born, grow, live, work and age shape the choices available to them.
The main categories of determinants
Health Studies usually organises determinants into linked groups.
- Biological and genetic factors: age, sex, body weight, genetic predisposition and family history of disease. For example, a family history of type 2 diabetes raises individual risk.
- Behavioural factors: tobacco and alcohol use, diet, physical activity, sun exposure and risk taking. These are often the most visible and the focus of many campaigns.
- Social and cultural factors: family, social support, education, employment, social inclusion and cultural identity. Strong social connection is protective; isolation and discrimination are harmful.
- Economic factors: income, wealth and the cost of living. Income shapes access to nutritious food, secure housing and timely health care.
- Environmental factors: housing quality, water and sanitation, air quality, climate and the built environment, including whether neighbourhoods support safe physical activity.
The social determinants of health are the conditions in which people are born, grow, live, work and age, together with the wider forces and systems shaping daily life. They explain much of the avoidable and unfair difference in health between groups.
How determinants interact
The skill this dot point really tests is analysis of interaction. Determinants rarely act alone; they cluster and reinforce one another. Consider a young person growing up in a low income household. Limited income may mean less nutritious food (behavioural and economic), crowded or unstable housing (environmental), and a school with fewer resources (social). Each factor compounds the others, so the overall effect on health is greater than any single determinant.
This clustering helps explain why health follows a social gradient: at each step down the socioeconomic ladder, health tends to be worse. It is not only the poorest who are affected; health improves steadily as social and economic circumstances improve. Recognising the gradient moves the explanation away from blaming individuals and toward the structures that distribute opportunity.
Upstream and downstream thinking
Health Studies encourages you to distinguish upstream from downstream factors. Downstream factors are close to the individual, such as a person smoking or not exercising. Upstream factors are the wider social, economic and political conditions that make those behaviours more or less likely, such as tobacco pricing, advertising rules, education and employment. Effective action often targets upstream determinants because it can shift the conditions for whole populations rather than relying on individual willpower.
Health outcomes worsen step by step as socioeconomic position falls. This gradient runs across the whole population, not just between the richest and poorest, which is why addressing the broad social determinants benefits everyone, not only the most disadvantaged.
Modifiable and non-modifiable determinants
When analysing a health issue, separate the factors that can realistically be changed from those that cannot. Genetics and age are non-modifiable, but the impact of a genetic risk can still be reduced through modifiable behaviours and supportive environments. This distinction is useful when you evaluate health promotion: good programs target modifiable determinants while taking account of the non-modifiable factors that put some groups at higher baseline risk.
Step 1: Pick the outcome and the group
Choose a measurable outcome and a specific group, for example higher rates of type 2 diabetes among people in a low-income outer-suburban area. Naming the group and the outcome keeps the analysis concrete rather than general.
Step 2: Name the upstream determinant
Start with the upstream factor that sets the conditions, here low income. Low income limits the household budget for fresh food, secure housing and time for activity, so it shapes the choices available rather than being a free choice.
Step 3: Trace the pathway through categories
Show the flow-on across categories: low income (economic) leads to cheaper energy-dense food (behavioural), to crowded or unstable housing and few safe places to exercise (environmental), and to greater everyday stress and weaker social support (social). Each step compounds the next.
Step 4: Link to the outcome and the gradient
Connect the pathway to the outcome: the clustering of these determinants raises the risk of obesity and then type 2 diabetes for this group. Note that this fits the social gradient, where risk rises steadily as socioeconomic position falls, which is why the difference is an avoidable inequity rather than chance.
Applying determinants in your responses
In exam and assessment responses, name the determinant categories, give a clear local example, and then explain the interaction and direction of effect. Strong answers show how an upstream determinant, such as low income, flows through behavioural and environmental pathways to a measurable outcome, such as higher rates of chronic disease. This layered explanation is what differentiates a high level response from a simple list.
A common error is explaining poor health purely through individual behaviour, such as saying someone is unhealthy because they choose to smoke. This ignores the social, economic and environmental determinants that shape those choices. Always link behaviour back to the wider conditions that make healthy choices easier or harder.
Understanding determinants gives you the framework for the whole course, because every later topic, from health promotion to global health, returns to the question of which factors are driving health outcomes and how they might be changed.
Exam-style questions
Questions in the style of TASC exam questions on this dot point, each with a worked answer. They are written by ExamExplained unless tagged "Past paper"; the year shows the paper a question is modelled on.
Practice4 marksIdentify the main categories of determinants of health and provide one (1) example of each.Show worked answer →
The categories of determinants are usually grouped as follows (1 mark each, up to 4 for the categories and examples combined):
- Biological and genetic: age, sex, body weight or genetic predisposition (for example a family history of type 2 diabetes).
- Behavioural: tobacco use, alcohol consumption, diet or physical activity (for example smoking).
- Social and cultural: education, employment, social support or cultural identity (for example strong social connection).
- Economic: income, wealth or cost of living (for example low income limiting access to fresh food).
- Environmental: housing quality, air and water quality, or the built environment (for example overcrowded housing).
A full-mark response names a category and pairs it with a clear, specific example rather than a vague label.
Practice10 marksAnalyse how the social determinants of health interact to produce unequal health outcomes for a low-income group in Australia. Refer to the social gradient and to upstream and downstream factors in your response.Show worked answer →
A high-scoring extended response should:
Define social determinants as the conditions in which people are born, grow, live, work and age (about 2 marks).
Show interaction, not a list. Trace how low income (economic) leads to less nutritious food (behavioural), unstable or crowded housing (environmental), and a lower-resourced school (social), with each factor compounding the others so the combined effect exceeds any single determinant (about 4 marks).
Apply the social gradient: health worsens step by step as socioeconomic position falls, across the whole population and not only at the extremes, which moves the explanation away from blaming individuals (about 2 marks).
Distinguish upstream from downstream: downstream factors are close to the individual (a person smoking), while upstream factors are the wider conditions (tobacco pricing, income, education) that make those behaviours more or less likely. Conclude that effective action targets upstream determinants to shift conditions for whole groups (about 2 marks).