Kim Jinseob, Sung Joohon
Preventive Medicine Program, Graduate School of Public Health, Seoul National University, Seoul, Korea.
J Prev Med Public Health. 2013 Jan;46(1):50-60. doi: 10.3961/jpmph.2013.46.1.50. Epub 2013 Jan 31.
This study aimed to evaluate whether the birth rate is associated with socioeconomic status in the women of the Republic of Korea, where the birth rate is rapidly decreasing.
This study included 732 females from the Healthy Twin Study, a family-twin cohort. The participants were classified into 3 socioeconomic groups according to their average income, education, and occupation. The association between socioeconomic status and number of children was assessed using gamma regression analysis with a generalized linear mixed model, adjusting for the age group, smoking/alcohol status, and family relationships.
The group with the highest education level had significantly fewer children compared with the group with the lowest education level (p=0.004). However, no significant associations were found according to household income level. The non-manual labor group had significantly fewer children compared with those working as homemakers (p=0.008).
This study aimed to explain the causal relationship between socioeconomic status and number of children. Associations between some socioeconomic status and number of children were found in Korea.
在韩国出生率迅速下降的背景下，本研究旨在评估出生率是否与社会经济地位相关。
本研究纳入了来自健康双胞胎研究（一个家庭双胞胎队列）的732名女性。参与者根据其平均收入、教育程度和职业被分为3个社会经济组。使用广义线性混合模型的伽马回归分析评估社会经济地位与子女数量之间的关联，并对年龄组、吸烟/饮酒状况和家庭关系进行了调整。
与教育水平最低的组相比，教育水平最高的组子女数量显著更少（p = 0.004）。然而，根据家庭收入水平未发现显著关联。与家庭主妇相比，非体力劳动者组的子女数量显著更少（p = 0.008）。
本研究旨在解释社会经济地位与子女数量之间的因果关系。在韩国发现了一些社会经济地位与子女数量之间的关联。
