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In 1999 the Army of Country Z Started to Collect

question 2

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In 1999 the army of country Z started to collect data from all their recruits.As part of the process,they conducted a full physical examination in which audition was measured and reported as normal hearing,low hearing loss,and severe hearing loss.Unfortunately,5 years later country Z went into a war with country Y.In 2018 a researcher from University U decided to conduct a study in which she investigated the association between hearing loss and suffering a war injury.What type of study design is being illustrated in this example?

Definitions:

Economic Benefits

Advantages or gains of a financial nature derived from activities or situations such as employment, investment, or socio-economic policies.

Social Benefits

Advantages or positive effects that individuals or communities receive as a result of social policies, interactions, or structures, contributing to overall well-being.

Fathers

Male parents who play significant roles in their children's lives, potentially impacting their development and well-being.

In Vitro Fertilization

A medical procedure whereby an egg is fertilized by sperm outside the body, in a laboratory dish, and then implanted in the uterus for pregnancy.