What Does Crude Birth Rate Mean?
The crude birth rate refers to the number of crude births occurring during the year per 1000 population, estimated at midyear. To calculate the rate of population change, the crude death rate is subtracted from the crude birth rate. This calculation does not take migration into account. The birth rate is referred to as crude because it does not take into account age or sex differences amongst the population.
To calculate crude birth rate, use the following formula:
CBR = (Number of births X 1,000) / Estimated population at mid-year