人口统计学参数与双胎妊娠：西班牙加泰罗尼亚地区的一项研究

Demographic parameters and twinning: a study in Catalonia, Spain.

作者信息

Bertranpetit J, Marin A

机构信息

Laboratory of Anthropology, School of Biology, University of Barcelona, Spain.

出版信息

Acta Genet Med Gemellol (Roma). 1988;37(2):127-35. doi: 10.1017/s0001566000004037.

DOI:10.1017/s0001566000004037

PMID:3239352

Abstract

Twinning rates for the years 1975-79 in Catalonia (Spain) are presented. Crude rates are very low: 7.62 per 1,000 maternities, the DZTR and the MZTR being 3.74 and 3.88 respectively. Standardized rates remain very low. Sex ratio among twin couples is also very low (0.49 male vs 0.51 female births). A multiple linear stepwise regression on the twinning rates shows MZ rates to be influenced by birth order and father's age, and the DZ rates by mother's age and birth order.

摘要

呈现了西班牙加泰罗尼亚地区1975 - 1979年的双胎率。粗率非常低：每1000例分娩中有7.62例，双卵双胎率（DZTR）和单卵双胎率（MZTR）分别为3.74和3.88。标准化率仍然很低。双胞胎夫妇中的性别比也很低（男婴与女婴出生比例为0.49比0.51）。对双胎率进行的多元线性逐步回归显示，单卵双胎率受出生顺序和父亲年龄的影响，双卵双胎率受母亲年龄和出生顺序的影响。