Question: Question 16 4 Pts Edith Epi Conducted A Study Evaluating The Relationship Between Elevated Noise Exposure And Heart Disease. She Collected Information On 20,000 Workers. Based On Manufacturing Plant Records From 1990 To 2015, She Documented The Health Experience Of Workers That Worked In A NOISY Environment: 4,000 Workers For 5 Years And 6,000 Workers …

Question 16 4 pts Edith Epi conducted a study evaluating the relationship between elevated noise exposure and heart disease. She collected information on 20,000 workers. Based on manufacturing plant records from 1990 to 2015, she documented the health experience of workers that worked in a NOISY environment: 4,000 workers for 5 years and 6,000 workers for 12 years. She also included 10,000 other workers who were NOT exposed to elevated noise, documenting their experience for 10 years. Via the company’s health insurance system, she documented how many of the 20,000 workers were diagnosed with heart disease over the time frame of the study. She ascertained 368 cases of heart disease among the noise-exposed workers and 200 cases of heart disease among the non-exposed workers. What was the incidence rate of heart disease among the noise-exposed workers? 368 cases/92,000 person-years=4.0 cases per 1,000 person-years 368 cases/10,000 workers = 36.8 cases per 1,000 persons 200 cases/100,000 person-years=2 cases per 1,000 person-years 568 cases/20,000 person-years=28.4 cases per 1,000 person-years