Crude death rate is a simple and common measure of mortality. It refers to the total number of deaths per 1000 midyear population of a place in a given year. So, Crude death rate is a ratio of the total registered death of a specified year to the total mid-year population, multiplied by 1000. It is a rough measure because it does not consider the age and sex while calculating mortality.

CDR (Crude death rate) is calculated by dividing the total number of deaths of a particular place with midyear population of that place in a given year and multiplying by 1000 to measure in per thousand populations. The crude death rate in Nepal was 13.3 per 1000 according to the census of 1991 and 9.6 per 1000 according to the census of 2001.

According to David M. Heer, “Crude death rate may be defined as the ratio of the number of deaths which occurs within a given population during a specified year, the size of death population at midyear.”

The following formula can be used to calculate CDR.

CDR = D/P * 1000

Where,

D = total number of deaths in a place/ country in a given year

P = total midyear population of the place in a given year

CDR = Crude Death Rate

Problem

The total population of Nepal 2001 AD was 23151423 and in the same year 222254 deaths were recorded. Find out CDR of that period.

Solution

The total midyear population of 2001 (P) = 2,31,51,423

The total number of deaths in the same year (D) = 2,22,254

CDR =?

Here,

CDR = D/P * 1000

= 222254/23151453 * 1000

= 9.6 per thousand

Therefore, about 10 people died out of 1000 population in average in 2000 AD in Nepal.

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