Determinants of protogenetic interval in a west Mediterranean rural population: La Alpujarra (southeast Spain).
This paper analyzes the protogenetic interval determinants and the influence on family size. The data came from La Alpujarra (Southeast Spain), consisting on a sample of 847 families marrying through-out the first half of the present century. The marital fertility includes 85% deliveries, 5% premarital births and the remaining 10% premarital conceptions. The protogenetic interval was clearly associated with the reproductive success since family size was nearly one child greater for short intervals (= < 16 months). The protogenetic interval largely depends on the occurrence of miscarriages preceding the first liveborn delivery as well as on maternal age. Consanguineous couples show slightly shorter intervals. A temporal decrease of protogenetic intervals was observed.
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Dpto. Biología Animal I (Antropología), Universidad Complutense de Madrid, Spain.
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D001721:Birth Intervals; D001723:Birth Rate; D003241:Consanguinity; D005191:Family Characteristics; D005260:Female; D005313:Fetal Death; D006801:Humans; D007086:Illegitimacy / Q000706:statistics & numerical data; D007231:Infant, Newborn; D008297:Male; D011247:Pregnancy; D012424:Rural Population / Q000706:statistics & numerical data*; D013030:Spain