Population Health

  • Created by: tyla
  • Created on: 22-10-12 04:24
born with it
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Have used hearing to communicate your whole life and then you loose your hearing.
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What does Ramboman Stand for
recruitment, allocation, Maintainace, bias, objective , Measurement and Analyse
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population, exposure group, comparrison, outcome and time
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Why do we randomise and have randomised groups
because personal opinions could affect the outcome, we wont know if it was due to personal lifestyle of the drugs, it makes the groups fair and similar
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Descibe random error
it happens by total chancem use a 99 percent conferdince interval
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How do we asses causation in public health
by comparing disease occurance in gorups with and without exposure to the possible causal factor. The difference in numbers and rates give us clues as to the possible cause
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Multifactorial Causation
When each affect has multiple causes and each causes has a multiple affect, for example the flu there are many causes and effect that can cause the flu
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When causes act together to produce a greater affect etc somking and asbestos can cause lung cancer
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What is Bradfor hills criteria for Causation
Termporal, biological plausability, Dose and Reversibility
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(time) is the relationship between cause and effect
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biological plausability
Does the association make common sense, based on what we know already
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Response relationship ( as the dose of the casual agent goes up the effect should come bigger and vice versa)
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Reversibility of the effect
If you remove the casual agent the effect should go away
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the relationship betwen an exsposure and outcome
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Prevention: Population approach
Intervention impacts on the whole population
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High risk approach
Only targets those who are at high risk , so it misses out on the people who are not in a high risk group
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aimed at underlying conditons that are affecting the whole population
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Limits incidence of disease by controlling specific casual factors
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aims to cure through early diagnosis
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aims to slow progression of a diease of reduce its developlment
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What is screening
a tool used to identify people at increased riskd of a condition so that a prevnetative action can be taken
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What is the aim of screening
to reduce the number of people suffering or dying from a specified health condition
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Population screening
involved screening the entire populaiton
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Case- Finding or oppotunisitc screening
Restricted to people who consult with a doctor or nurse for another reason,
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How to decide if a population should be tested
Suitable disease, Suitable test, Suitable treatment, Suitable screening programme
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Limitations of screening
Balance between benefit and harm, indivisual harm us population benefits, Health service intiated vs patient intiated, informed consent
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Indirect housing
Physical and social charactersitics of neighbourhoods via biological or psycological
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Direct housing
Physical and social aspects of housing via biological or psycological pathways to health
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Have used hearing to communicate your whole life and then you loose your hearing.

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What does Ramboman Stand for


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Card 5


Why do we randomise and have randomised groups


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