Crude death rate is an indicator that shows relationship between –
**Core Concept**
Crude death rate is a demographic indicator that measures the number of deaths occurring within a population during a specific period, expressed as a rate per 1,000 or 100,000 population. This rate provides a general overview of the mortality pattern in a given population, without considering the age or sex distribution.
**Why the Correct Answer is Right**
Crude death rate is related to the **population size** and the **number of deaths** occurring within that population. It is a simple, yet useful indicator that helps in comparing the mortality experience of different populations. The crude death rate is calculated by dividing the total number of deaths by the total population and multiplying by 1,000 or 100,000.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because crude death rate does not directly show the relationship between mortality and specific causes of death.
**Option B:** This option is incorrect because crude death rate does not take into account the age distribution of the population, which is an important factor in understanding mortality patterns.
**Option C:** This option is incorrect because crude death rate is not a direct indicator of life expectancy, although it is related to it.
**Clinical Pearl / High-Yield Fact**
It is essential to note that the crude death rate is a **gross measure** that does not provide information on the underlying causes of death or the age distribution of the population.
**Correct Answer:** D. population size and the number of deaths