Journal of Preventive Medicine and Public Health

Original Articles

Effects of Socio-demographic Factors on the Decreasing Trend in the Sex Ratio at Birth in Korea, 1997-2017: Jisuk Bae; J Prev Med Public Health. 2020;53(5):371-380. Published online August 7, 2020; DOI: https://doi.org/10.3961/jpmph.20.282

3,116 View
100 Download

Abstract PDF Supplementary Material: Objectives
This study investigated the effects of socio-demographic factors on the decreasing trend in the sex ratio at birth from 1997 to 2017 in Korea.
Methods
Data from 10 349 602 live births registered with Statistics Korea from 1997 to 2017 were analyzed. The secondary sex ratio (SSR), defined as the ratio of male to female live births, during the study period (1997-1999 [phase I], 2000-2002 [phase II], 2003-2005 [phase III], 2006-2008 [phase IV], 2009-2011 [phase V], 2012-2014 [phase VI], and 2015-2017 [phase VII]) was calculated according to selected socio-demographic factors, such as parental age, education, occupation, and birth order. Logistic regression models were used to estimate odds ratios (ORs) and 95% confidence intervals for a male birth after adjusting for potential confounders.
Results
The SSR gradually decreased from 1.10 (in 1998-2000 and 2002) to 1.05 (in 2013-2016). While a decreasing trend in the SSR was not noted among first births, male-biased sex ratios were prominent among third and higher-order births, for which the highest SSR was 1.46 in 1998. Higher birth order was significantly associated with an excess of male births in phases I-VI (≥third vs. first, OR range, 1.03 to 1.35). Advanced maternal age was significantly associated with an excess of female births in phases II, III, and V (≥40 vs. 20-24 years, OR range, 0.92 to 0.95).
Conclusions
This study demonstrated that advanced maternal age and reduction of the artificially-biased SSR among third and higher-order births may partially explain the decreasing trend in the SSR from 1997 to 2017 in Korea.; Summary

Impact of Changes in Maternal Age and Parity Distribution on the Increasing Trends in the Low Birth Weight and Very Low Birth Weight Rates in South Korea, 2005-2015: Yujin Oh, Jisuk Bae; J Prev Med Public Health. 2019;52(2):123-130. Published online March 14, 2019; DOI: https://doi.org/10.3961/jpmph.18.247

5,520 View
174 Download
6 Crossref

Objectives
The aim of this study was to evaluate the impact of shifts in maternal age and parity on the increasing trends in the low birth weight (LBW) and very low birth weight (VLBW) rates from 2005 to 2015 in South Korea.
Methods
Data from 4 993 041 live births registered with Statistics Korea during the period between 2005 and 2015 were analyzed. Applying a modified standardization method, we partitioned the total increment in the LBW and VLBW rates into (1) the increase in the LBW and VLBW rates due to changes in the maternal age and parity distribution (AP-dis) and (2) the increase due to changes in the age-specific and parity-specific rates (AP-spe) of LBW and VLBW for singleton and multiple births, respectively.
Results
During the study period, the total increment in the LBW and VLBW rates was 1.43%p and 0.25%p, respectively. Among singleton births, changes in the AP-dis accounted for 79% (0.34%p) and 50% (0.06%p) of the total increment in the LBW and VLBW rates, respectively. Meanwhile, among multiple births, changes in the AP-dis did not contribute to the increase in the LBW and VLBW rates, with 100% of the increase in the LBW (1.00%p) and VLBW (0.13%p) rates being attributed to changes in the AP-spe.
Conclusions
This study demonstrated that shifts in maternal age and parity were prominent contributors to the increase in the LBW and VLBW rates among singleton births between 2005 and 2015 in South Korea.

Summary

Korean summary
우리나라 출생자료를 이용하여 2005년부터 2015년까지 한국인 저출생체중아 및 극소저출생체중아 발생률 증가에서 1) 산모연령 및 출산순위 분포변화에 기인하는 부분과 2) 이들 분포변화 이외의 요인에 기인하는 부분을 수정된 표준화법을 적용하여 평가하였다. 분석 결과, 단태아에서 저출생체중아 발생률 증가량의 79% (0.34%p), 극소저출생체중아 발생률 증가량의 50% (0.06%p)가 산모연령 및 출산순위 분포변화에 기인한 것으로 나타났다. 반면, 다태아에서는 저출생체중아 및 극소저출생체중아 발생률 증가량의 100% (저출생체중아 1.00%p, 극소저출생체중아 0.13%p)가 이들 분포변화 이외의 요인에 기인한 것으로 나타났다.

Citations

Citations to this article as recorded by

Birth weight following pregnancy wildfire smoke exposure in more than 1.5 million newborns in Brazil: A nationwide case-control study
Weeberb J. Requia, Heresh Amini, Matthew D. Adams, Joel D. Schwartz
The Lancet Regional Health - Americas.2022; 11: 100229. CrossRef
Incidence, prevalence, and global burden of autism spectrum disorder from 1990 to 2019 across 204 countries
Marco Solmi, Minjin Song, Dong Keon Yon, Seung Won Lee, Eric Fombonne, Min Seo Kim, Seoyeon Park, Min Ho Lee, Jimin Hwang, Roberto Keller, Ai Koyanagi, Louis Jacob, Elena Dragioti, Lee Smith, Christoph U. Correll, Paolo Fusar-Poli, Giovanni Croatto, Andre
Molecular Psychiatry.2022; 27(10): 4172. CrossRef
Prevalence of adverse birth outcomes and associated factors in Jazan, Saudi Arabia: A cross-sectional study
Fatimah H. Dallak, Ibrahim M. Gosadi, Wejdan N. Haidar, Amjad A. Durayb, Abeer R. Alomaish, Atheer H. Alshamakhi, Raoud M. Khormi, Ali H. Almudeer, Majed A. Alibrahim
Medicine.2022; 101(41): e31119. CrossRef
The Korean Pregnancy Outcome Study (KPOS): Study Design and Participants
Hansol Choi, Dong Wook Kwak, Min Hyoung Kim, Su Young Lee, Jin Hoon Chung, You Jung Han, Hee Jin Park, Moon Young Kim, Dong Hyun Cha, Seul Koo, Joong-Yeon Lim, Hyun Mee Ryu, Hyun-Young Park
Journal of Epidemiology.2021; 31(6): 392. CrossRef
Maternal age and risk of early neonatal mortality: a national cohort study
Yoo-Na Kim, Dong-Woo Choi, Dong Seop Kim, Eun-Cheol Park, Ja-Young Kwon
Scientific Reports.2021;[Epub] CrossRef
Modeling the Effect of Mother's Characteristics on the Weight of a Newborn
Oluwafemi Samson Balogun, Donald Douglas Atsa'am, Toluwalase Janet Akingbade, Emmanuel Awuni Kolog, Richard O. Agjei, Samuel Nii Odoi Devine
International Journal of Childbirth.2020; 10(4): 206. CrossRef

Changes in the Distribution of Maternal Age and Parity and Increasing Trends in the Low Birth Weight Rate in Korea Between 1995 and 2005: Jisuk Bae, Jung Han Park, Yoo Keun Park, Jong-Yeon Kim, Sang-Won Lee, Soon-Woo Park; J Prev Med Public Health. 2011;44(3):111-117. Published online May 17, 2010; DOI: https://doi.org/10.3961/jpmph.2011.44.3.111

8,975 View
76 Download
10 Crossref

Abstract PDF

Objectives

This study measured the impact of shifts in maternal age and parity on the increase in the low birth weight (LBW) rate in Korea.

Methods

We obtained raw data for all 6 397 945 live births registered at the Korea National Statistical Office between 1995 and 2005. We calculated the proportion of increment in the LBW rate due to changes in the distribution of maternal age and parity (AP-dis) and the proportion due to changes in the age- and parity-specific LBW rate (AP-spe).

Results

The LBW rate increased from 3.02% in 1995 to 4.28% in 2005. The multiple birth rate increased from 1.32% to 2.19% during the same period. Of the 1.26% points increment in the LBW rate, 0.64% points occurred among singleton births and 0.62% points occurred among multiple births. Changes in the AP-dis accounted for 50% of the increase in the LBW rate among singleton births, but did not contribute to the increase in the LBW rate among multiple births. The remainder of the total increment in the LBW rate was explained by the increase in the AP-spe.

Conclusions

This study demonstrated that shifts in maternal age and parity among singleton births and increased multiple births were important contributors to the increment in the LBW rate. This study also revealed that the increase in the AP-spe was an equally important contributor as the shifts in maternal age and parity to the increment in the LBW rate among singleton births and was a major contributor among multiple births.

Summary

Citations

Citations to this article as recorded by

Incidence, Long-Term Visual Outcomes, and Mortality in Retinopathy of Prematurity in Korea: A Nationwide Population-Based Study
Kun-Hoo Na, Kyoung Hoon Kim, Tae Uk Kang, Hoo Jae Hann, Hyeong Sik Ahn, Hyun Jung Kim
Investigative Opthalmology & Visual Science.2020; 61(10): 14. CrossRef
Factors associated with low birth weight at term: a population-based linkage study of the 100 million Brazilian cohort
Ila R. Falcão, Rita de Cássia Ribeiro-Silva, Marcia F. de Almeida, Rosemeire L. Fiaccone, Aline dos S. Rocha, Naiá Ortelan, Natanael J. Silva, Enny S. Paixao, Maria Yury Ichihara, Laura C. Rodrigues, Mauricio L. Barreto
BMC Pregnancy and Childbirth.2020;[Epub] CrossRef
Modeling the Effect of Mother's Characteristics on the Weight of a Newborn
Oluwafemi Samson Balogun, Donald Douglas Atsa'am, Toluwalase Janet Akingbade, Emmanuel Awuni Kolog, Richard O. Agjei, Samuel Nii Odoi Devine
International Journal of Childbirth.2020; 10(4): 206. CrossRef
Impact of Changes in Maternal Age and Parity Distribution on the Increasing Trends in the Low Birth Weight and Very Low Birth Weight Rates in South Korea, 2005-2015
Yujin Oh, Jisuk Bae
Journal of Preventive Medicine and Public Health.2019; 52(2): 123. CrossRef
Factors Associated With Failure to Thrive Among Children Aged 3 to 72 Months in Jahrom, Southern Iran
Vahid Rahmanian, Yaser Sarikhani, Keramatollah Rahmanian, Elham Mansoorian, Mahdieh Zare
Shiraz E-Medical Journal.2018;[Epub] CrossRef
Adverse Child’s Birth Outcomes and Maternal Age at Birth: 1997-98, 2014-15 Birth Certificate Data of Korea
Sang Hwa Park, Jong Seok Kim, Dar Oh Lim
Journal of Health Informatics and Statistics.2017; 42(3): 294. CrossRef
Experiences of Prenatal Genetic Screening and Diagnostic Testing Among Pregnant Korean Women of Advanced Maternal Age
Myunghee Jun, Vipavee Thongpriwan, Kyung Sook Choi
Journal of Transcultural Nursing.2017; 28(6): 550. CrossRef
Reproductive Health of Women in Rural Areas of East Azerbaijan – Iran, before and after Implementation of rural Family Physician Program: an Ecologic Study
Mahasti Alizadeh, Hossein Jabbari Birami, Siavash Moradi
Journal of Caring Sciences.2015; 4(4): 321. CrossRef
Risk Assessment of Adverse Birth Outcomes in Relation to Maternal Age
Yi-Hao Weng, Chun-Yuh Yang, Ya-Wen Chiu, Lynette K. Rogers
PLoS ONE.2014; 9(12): e114843. CrossRef
The association between maternal nonylphenol exposure and parity on neonatal birth weight: A cohort study in Taiwan
Chia-Huang Chang, Mei-Lien Chen, Kai-Wei Liao, Yen-An Tsai, I-Fang Mao, Tzu-Hao Wang, Shiaw-Min Hwang, Yu-Jen Chang, Ming-Song Tsai
Chemosphere.2013; 93(6): 1145. CrossRef

First
Prev
Page of 1
Next
Last

Search