双胞胎与社会经济因素：过去20年的变化
Twins and socioeconomic factors: changes in the last 20 years.
作者信息
Malamitsi-Puchner Ariadne, Voulgaris Konstantinos, Sdona Emmanouela, Christou Christos, Briana Despina D
机构信息
a Medical School, National and Kapodistrian University of Athens , Athens , Greece.
b Hellenic Statistical Authority , Athens , Greece.
出版信息
J Matern Fetal Neonatal Med. 2019 Feb;32(3):455-460. doi: 10.1080/14767058.2017.1382469. Epub 2017 Oct 3.
BACKGROUND
Socioeconomic factors associated with twins/multiples have been sparsely studied.
METHODS
Data, regarding twin out of total births from 1996 to 2015, were extracted from databases of the Hellenic Statistical Authority and analyzed.
RESULTS
Twinning rate in Greece has increased from 1996 and onwards, in parallel with advanced maternal age and decline in total births. Higher twin rates are associated with higher maternal education, better paid parental occupations, and thus wealthier families, married maternal status, while immigrants present a lower twinning rate than Greeks. Lastly, the years of the economic crisis, starting in the year 2008 and still continuing, are characterized by a higher percentage of twins.
CONCLUSIONS
Our findings should be mainly attributed to the postponement of fertility, as well as the treatment of infertility with transfer of multiple embryos, when assisted reproductive technologies are applied.
背景
与双胞胎/多胞胎相关的社会经济因素研究较少。
方法
从希腊统计局数据库中提取1996年至2015年总出生数中双胞胎的数据并进行分析。
结果
希腊的双胞胎出生率自1996年起呈上升趋势，与此同时产妇年龄增大，总出生数下降。双胞胎出生率较高与产妇受教育程度较高、父母职业收入较好因而家庭较富裕、产妇已婚状况有关，而移民的双胞胎出生率低于希腊人。最后，始于2008年且仍在持续的经济危机期间，双胞胎的比例较高。
结论
我们的研究结果主要应归因于生育推迟，以及在应用辅助生殖技术时通过移植多个胚胎治疗不孕症。
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