How tobacco smoking can cause variations in Health Status?
Tobacco smoking increases risk of lung cancer, asthma, emphysema and cardiovascular disease, so if a population group has higher rates of tobacco smoking, it's also likely to have higher mortality/morbidity rates from these conditions.
How biological and behavioural determinants contribute to difference between males and females for cardiovascular disease?
Biological:
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body weight: males are more likely to be overweight than females, which increases their rates of CVD
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hormones: females have oestrogen which is a protective factor against cardiovascular disease, so they have lower rates of CVD than males (before menopause)
Behavioural:
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diet: females are more likely to eat a diet high in fruit and vegetables and lower in energy dense foods; thus they're less likely to become overweight, and may have lower blood cholesterol levels (as fibre in f&v lowers cholesterol), so have lower rates of CVD than males
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accessing healthcare: females are more likely to access preventative healthcare (such as visiting a GP) than males, so it's more likely that high blood pressure, atherosclerosis etc. will be noticed and treated early, so females have lower mortality rates from CVD
How changes in health care have contributed to a change in Life Expectancy in Australia.
Not so sure on this one:
- Improved technology, drugs and surgery techniques - thus more diseases can be diagnosed, treated and cured, raising LE.
- There are increasingly more free programs, such as bowel cancer screening programs, so people are more likely to catch diseases early and are thus less likely to die from them, raising LE.
- In the healthcare system, there's also been a shift towards the social model of health/health promotion - this means that there is more advertising of healthy behaviours (like Slip! Slop! Slap! which promotes healthy sun behaviours, anti-smoking ads, etc.) and more of a shift to the person themselves being responsible for their health. Rather than just relying on doctors to fix us, we have been learning more to look after our own health. Thus we're less likely to get various conditions like CVD, type 2 diabetes, skin cancer etc. and thus have a higher LE.