Sex Ratio of Twin at Birth and its Significance in Population Management

Jianping Gan, Pingfang MING, Zaiqiang KU


In clue of twins, this paper studies the sex ratio of twin at birth and its functions in population science, explores to exploit deeply the information of twin birth in China which was hidden in data structure of Censuses and bearing investigations, and raises the possibilities of analyzing the natural sex ratio at birth and evaluating the reliability of sex ratio at birth in China. The goal of this paper is to give a suggestion for exploiting and studying the data of the sixth Census deeply.
Key words: Twin; Sex ratio at birth; Census; Population Management

Dans les idées de jumeaux, ce document étudie le sex-ratio à la naissance de jumeaux et de ses fonctions dans les sciences de la population, il explore profondément à exploiter les informations de naissance de jumeaux en Chine, qui était caché dans la structure des données des recensements et des enquêtes portant, et soulève la possibilité d’analysant le sex-ratio à la naissance naturelle et d'évaluer la fiabilité des sex-ratio à la naissance en Chine. L'objectif de ce texte est de donner une suggestion pour l'exploitation et l'étude des données du Recensement de sixième profondément.
Mots clés: Jumeaux; Naissance du Sexe-ratio; Recensement; Gestion de la population


Jumeaux; Naissance du Sexe-ratio; Recensement; Gestion de la population; Twin; Sex ratio at birth; Census; Population Management



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