This video demonstrates how to calculate epidemiological rates: cumulative incidence is calculated as new cases divided by total population at risk (500/5000 = 0.05), while maternal mortality ratio is calculated as maternal deaths per 100,000 live births (80/40000 × 100,000 = 400 per 100,000).
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Morbidity & Mortality MCQs Explained 🔥 | Medical Statistics Ep 4Added:
Question 5: A study followed 5,000 smokers for 10 years.
500 of them developed lung cancer. What is the cumulative incidence of lung cancer among smokers?
A: 0.01, B: 0.05, C: 0.1, D: 0.5, E: 1.
The correct answer is B: 0.05.
Question 6: During 2023, 80 maternal deaths occurred among 40,000 live births in a province.
Calculate the maternal mortality ratio.
A: 20 per 1,000 live births, B: 80 per 1,000 live births, C: 200 per 1,000 per 100,000 live births, D: 400 per 100,000 live births, E: 800 per 100,000 live births.
The correct answer D: 400 per 100,000 live births.
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