How epidemiological data influences changes in health practices

Describe how epidemiological data influences changes in health practices. Provide an example and explain what data would be necessary to make a change in practice.

 

Sample Solution

How epidemiological data influences changes in health practices

Epidemiology is the method used to find the causes of health outcomes and diseases in populations. Epidemiology is a discipline that has a crucial role in describing health status, identifying risk factors, and analyzing relationships between health and different hazardous agents. The classical epidemiological triangle of host-agent-environment describes how individuals become ill. Disease occurs when an outside agent [vector] capable of causing disease or injury meets a host that is vulnerable to the agent. This happens in an environment that allows the agent and host to interact. Epidemiology not only measures the relationships between hosts and agents in certain environments but also analyses the health status of the population living in that environment. As epidemiology is one of the essential disciplines of public health, its major aim is to contribute to fulfillment of the definition of public health as a science and art to promote health and prevent disease by organized effort of society.

bombings. It praised the courage and determination of emergency service staff on the day, but said that some of the processes used by the organisations involved needed to be addressed. Overall, the response to the bombings demonstrated the strength and flexibility of the UK’s emergency response arrangements; The need to better share information and provide practical and emotional support to bereaved and survivors, the importance of establishing Reception and Assistance Centres quickly, and the telecommunications equipment used by the emergency services worked well although older systems did not perform as efficiently. But, however inspiring the individual acts of heroism preformed by police officers, fire fighters and paramedics, the uncomfortable truth is that the emergency services’ response to 7 July was hampered by delays, communication failures, tactical confusion and a jobsworth adherence to protocol that at times defied common sense. Again and again, survivors spoke of the appalling wait for rescuers, even as they felt themselves slipping ever closer to death. Fire crews did not arrive at Edgware Road until an hour after the attacks. The first paramedic on the scene called urgently for ambulances; he learned later that ambulances from two stations nearby had not been dispatched. Paramedics intended for Russell Square were sent to the wrong location, meaning they also arrived almost an hour after the attack. Fire fighters arrived at King’s Cross-station at 9.13am but did not go to the scene of the blast until 9.42am because of communication protocols. Police and fire fighters were forced to use runners between tunnels and station concourses because their radio system at the time did not work underground.

Most worrying, perhaps, was what emerged at the inquest about the “Gold” command centre at London Ambulance Service headquarters. This was a scene of barely contained chaos, in which staff could not log on to computers, messages were scribbled on pieces of paper and subsequently lost, and a single operator was handling every 999 call and radio message relating to the four bomb sites. Three hour

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