Biological, sociocultural (including commercial) and environmental factors behind variations in health status (VCE HHD Unit 3 AoS 1)

Average 3.1 out of 6; only 11 per cent scored full marks.

What earned the marks. For each factor: identify a sociocultural factor, describe how it could influence health, and describe how it could lead to the variation between the two groups. The report's most common issue was mentioning only one population group.

Factors accepted in the report included socioeconomic status, income, education, occupation, employment status, social networks, social exclusion, social isolation, cultural background, food security, early life experiences, access to health care, supply chains, commercial factors, and packaging and labels.

Model answer (one factor). Income: people in group B may have higher average incomes than group A, so they can afford nutritious foods such as fruit and vegetables and regular health care. This supports immune function and early treatment of illness, so more of group B are free of disease and a greater proportion rate their health as excellent or very good (about 60 per cent) than group A (about 40 per cent).

Second factor. Social isolation: people in group A may experience higher levels of social isolation, with fewer supportive relationships, increasing the likelihood of depression and anxiety, so fewer of group A rate their health as excellent or very good than group B.

Always refer to both groups and finish on the variation named in the question.

Average 1.8 out of 6; 41 per cent scored zero.

Accepted biological factors (2024 examiners' report): blood pressure, hormones, blood glucose levels, blood cholesterol levels and genetics. Body weight and obesity were excluded by the question. Hypertension was not accepted because the biological factor is high blood pressure (the VCAA FAQ repeats this ruling). Genetic predisposition to sex-specific cancers such as prostate or cervical cancer was not accepted, but predisposition to breast cancer was, as it occurs in both sexes.

What earned the marks

For each factor: show how it differs between males and females, link it to a specific disease or condition, and then to a specific health status indicator with a direction.

Model answer (one factor)

Blood pressure: males are more likely to have high blood pressure than females. High blood pressure strains the heart and blood vessels, increasing the risk of heart attack and stroke, so it contributes to higher mortality from coronary heart disease in males and to males' lower life expectancy (81.1 years compared with 85.1 years for females in 2022-2024, ABS).

Second factor

Hormones: before menopause, oestrogen helps protect females against the build-up of plaque in arteries, so coronary heart disease tends to develop later in females, which contributes to males' higher rate of fatal burden (1.6 times the female rate after adjusting for age, AIHW 2024).

Average 3.0 out of 5.

Accepted factors from the report. Environmental: infrastructure or road quality, geographical location and access to health care, distance to shops and food security, housing or overcrowded housing, work environment. Sociocultural: education, access to health care, occupation, unemployment, cultural norms, social exclusion, socioeconomic status.

What cost marks. Most students identified relevant factors but did not link them to the difference in mortality from injury or poisoning, and did not include both groups.

Model answer. Environmental, road quality and distance to health care: a higher proportion of Aboriginal and Torres Strait Islander people live in remote areas, where unsealed roads increase the risk of serious crashes and emergency care may be hours away, so injuries are more likely to be fatal than for non-Indigenous Australians living closer to hospitals. Sociocultural, social exclusion: experiences of racism and discrimination can increase psychological distress and the likelihood of harmful alcohol use, increasing mortality from alcohol poisoning and alcohol-related injury compared with non-Indigenous Australians.

Use strengths-based, non-blaming language: explain the conditions that produce the difference, not the choices of the group.

Average 1.2 out of 4, one of the hardest questions on the 2022 paper.

The trap. Many students chose "education" or "health care" but then explained them using geographical distance, which is an environmental explanation and earned no marks. The report also stressed linking to the difference in death rates, not the risk of developing the disease.

Accepted factors included socioeconomic status (income, occupation, education) and unemployment.

Model answer (diabetes). Income: people in very remote areas have lower average incomes, so managing diabetes (regular GP visits, medication, glucose monitoring, healthy food) is less affordable. Poorer management increases complications and deaths from diabetes, contributing to the higher death rate as remoteness increases. Education: lower average education levels can mean lower health literacy, making it harder to understand and act on management advice, so fewer complications are prevented and death rates from diabetes rise with remoteness.

One mark each.

(a) Biological: it relates to the body. (b) Sociocultural, specifically a commercial factor: the study design lists marketing strategies and the use of media as commercial factors, a subset of sociocultural factors. (c) Environmental: the study design lists housing environment as an environmental factor.

One mark for identifying a valid commercial factor, one for explaining how it affects health, and two for linking to a variation between two named groups with an indicator.

Factor (1 mark)

Distribution and affordability of unhealthy food: companies decide where outlets are located and what products are cheapest.

Effect on health (1 mark)

Energy-dense, nutrient-poor foods that are cheap and heavily promoted are more likely to be eaten regularly, increasing energy intake, overweight and obesity and the risk of type 2 diabetes.

Variation (2 marks)

If fast-food outlets and discount promotions are more concentrated in lower socioeconomic areas, people in those areas are more exposed to these foods than people in higher socioeconomic areas, contributing to higher prevalence of obesity and type 2 diabetes and a higher rate of burden of disease in the lower socioeconomic group. The AIHW's 2018 burden study found people in the lowest socioeconomic group experienced total burden at 1.6 times the rate of the highest group.

Three factors at about 2 marks each: classify correctly, explain the mechanism, and link to higher fatal burden in males with a comparison.

Biological, blood pressure (2 marks)

Males are more likely than females to have high blood pressure, which increases the risk of heart attack and stroke. This contributes to coronary heart disease being the leading cause of burden for males (7.2 per cent of male DALY in 2024, AIHW) and to males' higher rate of premature death.

Sociocultural, gender expectations (2 marks)

Social expectations that men should be tough and self-reliant can make males less likely to seek help early for physical and mental health problems. Later diagnosis and treatment increase deaths from cancers and from suicide; the AIHW found males experienced three times the burden of females from suicide and self-inflicted injuries in 2024.

Environmental, workplace safety (2 marks)

Males are more likely to work in higher-risk workplaces such as construction, mining, agriculture and transport, where exposure to machinery, vehicles and heights increases fatal injuries compared with females, who are more likely to work in lower-risk settings.

Conclusion

Together these factors help explain why males had 1.6 times the rate of fatal burden of females in 2024 (age-standardised, AIHW).

Marker's note: "analyse" needs the mechanism and the comparison in every paragraph. An answer that says "males take more risks" without classifying or linking to an indicator earns little.