Disease Dilemmas SG2 Flashcards
Explain Abdel Omran’s Epidemiological Transition Model
As life expectancy increases, the major cause of death and disability in general shifts from communicable, maternal and perinatal causes to chronic, non-communicable ones
What are the four stages of Omran’s Epidemiological Transition Model?
Pestilence and famine, Receding pandemics, Degenerative and man-made diseases, Delayed degenerative disease
What are four characteristics of stage 1 of the epidemiological transition model?
Parasitic diseases are main cause of death, Mortality is high and fluctuates from year to year, Famine due to food shortages, Life expectancy around 30 years
What are four characteristics of stage 2 of the epidemiological transition model?
Reduction of infectious diseases, Epidemics causing large scale mortality to become rare, Includes many LIDCs and EDCs today, Life expectancy above 50 years
What are four characteristics of stage 3 of the epidemiological transition model?
Deaths from infectious diseases decreased, Deaths from chronic diseases increased, Man-made diseases due to lifestyle choices/pollution, Many emerging economies are in this phase
What are four characteristics of stage 4 of the epidemiological transition model?
Life expectancy increases, People able to live longer with CVD etc., Medical advances delay onset of degenerative CVD etc, Life expectancy increased to early 70s-mid 80s
Define Pestilence
A fatal epidemic disease
Define Prevalence
The proportion of a particular population found to be affected by a medical condition
What are four reasons LIDCs have a higher prevalence of communicable diseases?
Inadequate health care, Inadequate food intake, Poor environmental conditions, Climate
What are three reasons ACs have a higher prevalence of non-communicable diseases?
Eradication of communicable diseases, Over nutrition, Raise in living standards
What has WHO classified air pollution as?
The leading cause of cancer in humans
What are five main sources of air pollution?
Transport, Industry, Fossil fuel power stations, Farming, Fuels for cooking and heating
Define Particulate Matter
PM10 and PM2.5 are solid particles in the air that are smaller than 10 and 2.5 millionths of a metre across
How many of the 20 most polluted cities in the world are in China?
16
What % of China’s urban population breathe clean air?
<1%
In Linfen, what is 1 day of breathing the air equivalent to?
Smoking 3 packs of cigarettes
Breathing the polluted air for 1 hour can take how many minutes off someone’s life?
20
What % of Chinese cities can’t meet air quality standards?
70%
What % of Beijing’s air pollution comes from vehicle emissions?
22%
How much coal does China consume?
3.8 billion tonnes (1/2 of all coal consumed in the world)
China gets what % of electricity from coal?
80%
What % of China’s total energy is from coal?
70%
How many tonnes of coal does China burn in one day?
6 million tonnes
How many vehicles will there be in China by 2030?
400 million