Extract:
Studying Alzheimer’s
Years of research have proven that Alzheimer’s disease, along with other types of dementia, elevates the risk of dying early in the majority of patients. In a recent study performed by the Institute of Public Health at the University of Cambridge, scientists set out to determine exactly how long people were likely to survive following the onset of dementia.
Currently, approximately 24 million people throughout the world suffer from the memory loss and orientation confusion that comes with Alzheimer’s disease and other forms of dementia. That number appears to double every 20 years, and experts predict that by the year 2040, there will be 81 million people living with some level of the condition. The more researchers and doctors can learn about what causes the problem, as well as how to treat it, the better prepared they will be to handle these millions of future patients.
To determine how people’s life spans are affected by this medical condition, the scientists studied 13,000 seniors for a period of 14 years. During that time, 438 people developed dementia, the vast majority of whom died. The factors of age, disability, and gender were analyzed to see how they affected longevity as well.
Conclusions from the study showed that women tended to live slightly longer than men, averaging 4.6 years from the onset of dementia, as opposed to 4.1 years for men. The patients who were already weak or frail at the onset of the dementia died first, regardless of age. Marital status, living environment, and degree of mental decline, although relevant factors, were not shown to be influential.
Researchers from the University of Cambridge hope that this new information will help patients, clinicians, care providers, service providers, policy makers, and others who deal with dementia. The more they know, the better they will be able to respond to this heartbreaking condition.
What is the author’s primary purpose in writing this essay?
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A
To persuade
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B
To entertain
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C
To inform
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D
To analyze
The author's primary purpose is to inform readers about Cambridge University's dementia longevity study through objective presentation of methodology and findings.
A) To persuade
Persuasive writing would advocate for specific care approaches or policy changes. The author neutrally reports study design, results, and potential applications without urging particular actions.
B) To entertain
No narrative elements, humor, or engaging anecdotes appear. The tone remains clinical and factual, designed for knowledge transfer rather than enjoyment.
C) To inform
The passage systematically educates readers about: dementia's global prevalence and growth projections, Cambridge study methodology (13,000 seniors, 14 years, 438 dementia cases), specific longevity findings (gender differences, frailty impact), and potential applications for patients and caregivers, all presented with factual neutrality.
D) To analyze
Analysis would interpret findings' broader implications or critique methodology. The author reports results objectively without analytical commentary on what the findings mean beyond stated applications.
Conclusion
Informative writing prioritizes factual accuracy and comprehensive topic coverage without advocacy or subjectivity. This passage exemplifies these qualities through its structured presentation of dementia research, from epidemiological context to specific longevity findings, without persuasive intent or personal perspective.