Differentiate and analyse the key factors that influence the health of individuals and groups

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.

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.

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.

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.

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.