Question:easy
Which of the following is a positive mortality indicator?
Which of the following is a positive mortality indicator?
Show Hint
Look for the one indicator where a higher value means a healthier population.
Updated On: Jun 24, 2026
- IMR (Infant mortality rate)
- Child mortality rate
- MMR (Maternal mortality rate)
- Life expectancy
Show Solution
The Correct Option is D
Solution and Explanation
Step 1: Separate indicators by direction. A negative indicator worsens health as it rises; a positive indicator signals better health as it rises.
Step 2: Run through the choices. IMR, child mortality rate and MMR all count deaths, so a larger number means a sicker community. These are negative indicators and are ruled out.
Step 3: Life expectancy is different. The longer people are expected to live, the healthier the population, so its value moves in the same direction as good health. That is the textbook definition of a positive indicator.
Step 4: Hence, of the mortality indicators listed, life expectancy is the only positive one.
\[\boxed{\text{Life expectancy}}\]
Step 2: Run through the choices. IMR, child mortality rate and MMR all count deaths, so a larger number means a sicker community. These are negative indicators and are ruled out.
Step 3: Life expectancy is different. The longer people are expected to live, the healthier the population, so its value moves in the same direction as good health. That is the textbook definition of a positive indicator.
Step 4: Hence, of the mortality indicators listed, life expectancy is the only positive one.
\[\boxed{\text{Life expectancy}}\]
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