public health Flashcards
what is public health
science and art of preventing disease, prolonging life and promoting health through organised efforts of society
what are the 3 domains of public health
health improvement
health protection
improving services
what are the key concerns of public health
inequalities in health
wider determinants of health
prevention
What needs to be done/performed before a health intervention is made?
health needs assessment
what is a health needs assessment
systematic method for reviewing health issues facing a population
this leads to agreed priorities and resource allocation that will improve health and reduce inequalities
what are the 3 different approaches of health needs assessments
epidemiological
comparative
corporate
define need
ability to benefit from an intervention
define demand
what people ask for
define supply
what is provided
what is a health need and how is it measured
need for health
measured using mortality, morbidity, socio-demographic measures
what is a health care need
need for healthcare
depends on the potential of prevention, treatment and care services to remedy health problems
epidemiological approach to a health needs assessment
- define the problem
- look at the size of the problem (incidence/ prevalence)
- services available
- evidence base (effectiveness and cost-effectiveness)
- models of care incl. quality and outcome measures
- existing services (what is already there and unmet needs)
- recommendations
problems with epidemiological approach
required data may not be available
evidence base may be inadequate
doesn’t consider felt needs of people affected
advantages of epidemiological HNA approach
uses existing data
provides data on disease incidence/ mortality/ morbidity
can evaluate services by trends over time
what are potential sources of data for epidemiological HNA
disease registry
hospital admissions
GP databases
mortality data
primary data collection e.g. patient survey
comparative approach to a HNA
compares services for a particular health issue in 2 different areas
advantages of comparative HNA
quick and cheap if data available
indicates whether services is better/ worse than comparable areas
problems of comparative HNA
data may not be available
data may be or variable quality
may be difficult to find a comparable population
corporate approach to HNA
obtaining views of a range of stakeholders e.g. patients, families professions etc
asking local population what their health needs are
e.g. focus groups, interviews, public meetings
advantages of corporate HNA
based on felt and expressed needs of the population in question
takes into account wide range of views
disadvantages of corporate HNA
may be influenced by political agendas
difficult to distinguish need from demand
acute physical effects of dependant drug abuse
respiratory depression
constipation, dry mouth (side effects)
complications of injecting- DVT, abscesses, SBE
How often must heroin be used in people with heroin dependency to avoid withdrawal?
8 hourly
effects of heroin
euphoria
intense relaxation
miosis
drowsiness