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Cancer talk for HAZ. Basic descriptive epidemiology - concepts - information on patterns Policy Context (inequalities) Problems faced (determinants & solutions). What is cancer?. Different types of malignant neoplasm (tumour, neoplasm, new growth)
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Cancer talk for HAZ • Basic descriptive epidemiology - concepts - information on patterns • Policy Context (inequalities) • Problems faced (determinants & solutions)
What is cancer? • Different types of malignant neoplasm (tumour, neoplasm, new growth) • Strictly speaking applies only to organs with an epithelial surface • Often understood to include luekaemia, melanoma, lymphoma, sarcoma of bone, brain tissue
Cancer in the UK • Major public health problem • Will afflict 1 in 3 before 75th birthday • 250,000 new cases each year • 140,000 deaths each year (25% of all deaths)
Cancer Survival • Reduce mortality by either • Preventing new cases from occurring • Increasing chances of survival once diagnosed • Contrary to popular belief survival is not a lottery • Inequalities in incidence, diagnosis and treatment and survival/outcome exist
National Policy - OHN • Improve health and reduce health gap • Reduce mortality from cancer in persons under 75 by at least 20% by year 2010 (saving 100,000 lives in total??) • will largely be achieved by the cumulative effect of a range of interventions, each targeting a specific cancer type (see later).
Cancer Epidemiology • What factors influence risk • Age (after childhood increase with age) • Sex • Affluence/deprivation -> wider determinants • Geography • Lifestyles • How do we measure impact • Incidence of cancer and death from cancer over time • Survival (usually at 5 years – Not ‘Cure Rate’)
All cancers All ages (1996-2000) Mortality by sex and level of deprivation
Breast Most common cancer in women (20%) 5yr Survival 20%-80% depending on stage, deprivation, age… Survival has improved but significant inequalities exist North Staffs 5yr survival worst in country Lung Most common cancer in men (25%), 3rd in women (11%) Poor survival at 5 years (6%) Smaller deprivation effect on survival Breast vs Lung Cancer
Lung Cancer – What is the problem? • 85%+ deaths from Ca Lung due to smoking • By 2011 as many women as men diagnosed with Ca lung (5-year survival 6%) • Cohort Effect – reduction in smoking rates have been slower in women • Need to target smoking cessation programmes particularly at women in deprived areas?
75% of all deaths from cancer caused by top 10 Action should be focused on these causes A 20% overall reduction can be achieved by specific ‘interventions’ Two thirds of this reduction will come from primary prevention Cancer Epidemiology
1. Reduction in tobacco consumption 7.3% • 2. Improvement in provision of treatment services 4.0% • Increase in fruit and vegetable consumption 4% • Breast screening, with incremental improvement 2% • in quality • 5. Reduction in heavy alcohol consumption 1% • 6 Cervical screening, with incremental 1% • improvements in quality • 7 Colorectal screening, phased introduction of 0.5% • new modalities • 8. Reduction in domestic radon levels 0.2% • TOTAL 20.3% (Source: Nick Day) • For all the intervention targets listed above, the present • situation is less favourable for the more deprived sections of • the population
Summary • Cancer is many different diseases grouped together • Different Causal/Risk factors • Different Treatments/Solutions • Requires a focus on prevention/screening • Inequalities are significant