Definition: Gestational period

Social statistics

Interval in completed weeks between the first day of the last menstrual period of the mother and the day, month and year of delivery, irrespective of whether the product of conception is a live birth or born with no evidence of life (foetal death).
Source:
United Nations, "Handbook on Training in Civil Registration and Vital Statistics Systems", Studies in Methods, Series F, No. 84, New York, 2002
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