In a study investigating obesity and myocardial infarction (MI), the following results were obtained. Amongst participants with obesity, a total of 80 MI occurred. Amongst normal weight participants, a total of 40 MI occurred. The group with obesity accumulated 90,000 person-years and the normal weight group 175,000 person-years during the study period.
Calculate the incidence rate difference (per 100,000 person-years).
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Acceleration and velocity
Newton's second law says that when a constant force acts on a massive body, it causes it to accelerate, i.e., to change its velocity, at a constant rate. In the simplest case, a force applied to an object at rest causes it to accelerate in the direction of the force.
Explanation:
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