Block 9 + 10 Flashcards
EBDM involves
Patient preferences
Available resources
Research evidence
Clinician expertise
Major functions of global health
- Provide global standards, guidelines + research
- Coordinated epidemiological surveillance + information sharing
- Global solidarity for countries facing disaster + deprivation
- Invest and advocate for health policies + key issues
Define global health
Health of global population
90/10 gap
- less than 10% of worldwide resources for health research were put towards developing countries
- despite this being where more than 90% of all preventable deaths worldwide occurred
How to reduce 90/10 gap
- Highlight factors critical to health e.g. good sanitation
- Work together health policies + standards e.g. infection control programmes
- Provide technical support + resources
- Share important knowledge about health research + infection control
- Monitor incidence + progression of health outcomes
General intervention strategies to manage HIV/AIDs
- peer education abt high risk groups e.g. sex workers
- promotion + distribution of condoms at affordable prices
- Voluntary HIV counselling + testing
- promotion of safer sexual behaviours -> getting tested regularly
Public health objectives of vaccination
- reduce mortality + morbidity from vaccine preventable diseases
- prevent outbreaks + epidemics
- generate herd immunity
- eradicate infectious agent
Burden of disease
sum of mortality + morbidity measured by DALYs
DALYs
Disability adjusted life years
1 DALY = loss of 1 year in good health due to premature death/disease/disability
Factors driving decreased communicable disease burden in higher income countries
- better sanitation
- vaccination programmes
- improved education
- improved standards of healthcare
Factors increasing risk of global pandemics
- Global travel - easier spread
- Urbanisation - more overcrowding
- Weak health systems -> poor surveillance + detection
- Climate change
- increased human-animal contact
Climate change impacts on global health
- food production destabilised by drought
- increased temperatures -> easier for vector-borne diseases to circulate e.g. malaria
- rising water lvls increases risk of flooding + spread of water borne diseases
- increased pollution -> more allergies + asthma
R0 is proportionate to
- length of time case remains
- number of ppl. infected person comes into contact with who are susceptible to disease per unit time
- chance of transmission during encounter w infected case to susceptible host
Features of a good screening programme
easy to administer
cause minimal discomfort
be widely available
high test coverage
high sensitivity
high PPV
detect high proportion of disease in preclinical state
be reliable
be affordable
be valid
Why is DM in medicine important?
Doctors make decisions constantly
The decisions have effects on patients, families, and society
Having an understanding of decision making, and the role of evidence, can help improve medical practice
Cohort studies are good for investigating
prognosis
cause
Case control studies are are good for investigating
cause
RCTs are good for investigating
Treatment interventions
benefits and harm
cost effectiveness
Qualitative approaches are good for investigating…
Patients and/or practitioners perspectives
Diagnostic and screening studies are good for
identification
Systematic reviews are good for generating a
Summary of evidence for a specific question
Duty of Care
a legal obligation to provide care that conforms to the standard reasonably expected of a competent doctor
Negligence
failure to exercise the care that a reasonably prudent person would exercise in like circumstances
Functions of the clinical record
Support patient care
Improve future patient care
Social purposes at the request of patients
Medico-legal document
HIV intervention strategies
- Blood donor + product screening
- Promotion + distribution of condoms
- Peer education for high risk groups (sex workers)
- Promotion of safer sexual behaviour
- Diagnosis + treatment STDs
- HIV voluntary counselling and testing
Current problems w HIV interventions
- lack of Global funds from(WHO,UNAIDS etc.) to provide resources
- Political problems hinder outcomes prostitutes are illegal and
condom distribution not carried out
Type I error
rejecting the null hypothesis when it is trrue