Relative risk 2 means ?: (A) Risk of developing disease is 2 times higher among nonexposed, (B) 30% of disease among exposed is due to risk facter, (C) 200% increase in risk of developing disease among exposed, (D) Incidence rate is 2 times higher in exposed group than non-exposed
Answer is D. Ans. is 'd' i.e., Incidence rate is 2 times higher in exposed group than non-exposed It is very impoant to know the difference between relative risk and attributable risk.