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se Home Content AssessmentsCommunicationsResourcesHelp sson 6 Quiz ength: 1:00:00 Time Taken:0:16:11 Alex Trautman: Attempt 2 estion 6 (1 point) In a workplace with 500 employees, the following occurrence of new cases of respiratory distress was observed over 4 months: end of month 1: 15 cases; end of month 2: 10 cases; end of month 3: 5 cases; end of month 4: 5cases. Which of the following is the approximate ncidence rate? 1) 35 cases per 1000 person-months 2) 100 cases per 1000 person-months 3) 8 cases per 1000 person-months 4) 60 cases per 1000 person-months Save uestion 7 (1 point) esc FI F3 F4 F5

Explanation / Answer

We know that Person-time is the sum of total time contributed by all subjects. Here, 500 employees were subject to observation for 4 months so that the Person-time is 500*4 = 2000 person-months. Since 15+10+5+5 = 35 cases of respiratory distress were observed.in 2000 person- months, hence the incidence rate is No. of incident/Total person-time = 35/2000 person-months = 17.5 cases per 1000 person months. All the options are incorrect.

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