This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
SuIllin index - 
Select and explain. 
A. Measures disability, B. Measures life years adjusted with disability, C. Measures life expectancy adjusted without disability or free of disability, D. Measures life expectancy
C: Measures life expectancy adjusted without disability or free of disability
Answer: C: Measures life expectancy adjusted without disability or free of disability 
Explanation: Ans. is 'c' i.e., Measures life expectancy adjusted without disability or free of disability Sullivan's index is the expectation of life free of disability. o It is computed by subtracting from the life expectancy the probable duration of bed disability and inability to perform major activities. Sullivan's index = life expectancy -- Duration of bed disability & Inability to perform minor work