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crude birth rate
Description The fraction where the numerator is the total number of births in a population during a given period and the denominator is the total number of person-years lived by the population during that period, generally approximated by the size of the population at the mid-point of the period multiplied by the length of the period in years. Usually stated per 1,000 (21). Live birth is the complete expulsion or extraction from its mother of a product of conception, irrespective of the duration of the pregnancy, which, after such separation, breathes or shows any other evidence of life, such as beating of heart, pulsation of the umbilical cord, or definite movement of voluntary muscles, whether or not the umbilical cord has been cut or the placenta is attached (26, definition 3.1).
Source "United Nations, Multilingual Demographic Dictionary, English Section. Department of Economic and Social Affairs, Population Studies, No. 29 (United Nations publication, Sales No. E.58.XIII.4). World Health Organization, International Statistical Classification of Diseases and Related Health Problems, Tenth Revision (ICD-10), Vol. 1 (Geneva)."
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