Igcse Model Questions Vol1 2018 Biology Question 13

Practice objective / multiple choice question 13 from the 2018 Igcse Model Questions Vol1 Biology examination.

Igcse Model Questions Vol1 2018 Biology Objective / Multiple Choice Hard Difficulty
Question 13 IGCSE_MODEL_QUESTIONS_VOL1 • 2018 • BIOLOGY • objective

In a population study of 2000 individuals, 800 are smokers and 1200 are non‑smokers. Among smokers, 120 develop lung disease; among non‑smokers, 30 develop lung disease. (a) Calculate the relative risk (RR) of lung disease for smokers compared with non‑smokers. (b) Calculate the attributable risk percent (AR%). (c) If a health programme reduces the number of smokers by 25 % (the same incidence rates apply), estimate how many fewer new cases of lung disease would occur per year.

Answer Options

A. RR = 5; AR% = 80%; reduction = 22 cases
B. RR = 4; AR% = 75%; reduction = 20 cases
C. RR = 7; AR% = 85%; reduction = 30 cases
Correct Answer D. RR = 6; AR% = 83%; reduction = 25 cases
Correct Answer
D
Correct Option:
RR = 6; AR% = 83%; reduction = 25 cases

About This Question

This is Igcse Model Questions Vol1 2018 Biology Question 13. It is one of the objective questions from the 2018 Igcse Model Questions Vol1 Biology examination.

Difficulty level: Hard .

View More Igcse Model Questions Vol1 2018 Biology Questions More Igcse Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support