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http://dx.doi.org/10.3961/jpmph.2009.42.2.143

Trends in Sex Ratio at Birth according to Parental Social Positions: Results from Vital Statistics Birth, 1981-2004 in Korea  

Chun, Hee-Ran (Institute of Population and Aging Research, Hanyang University)
Kim, Il-Ho (Center for Addition and Mental Health, University of Toronto)
Khang, Young-Ho (Department of Preventive Medicine, University of Ulsan College of Medicine)
Publication Information
Journal of Preventive Medicine and Public Health / v.42, no.2, 2009 , pp. 143-150 More about this Journal
Abstract
Objectives : South Korea has experienced unprecedented ups and downs in the sex ratio at birth(SRB), which has been a unique phenomenon in the last two decades. However, little is known about socioeconomic factors that influence the SRB. Employing the diffusion theory by Rogers, this study was undertaken to examine the trends in social variations in the SRB from 1981 to 2004 in Korea. Methods : The data was taken from Vital Birth Statistics for the period from 1981-2004. We computed the annual male proportion of live births according to the parental education(university, middle/high school, primary) and occupation(non-manual, manual, others). Logistic regression analysis was employed to estimate the odds ratios of male birth according to social position for the equidistant three time periods(1981-1984, 1991-1994, and 2001-2004). Results : An increased SRB was detected among parents with higher social position before the mid 1980s. Since then, however, a greater SRB was found for the less educated and manual jobholders. The inverse social gradient for the SRB was most prominent in early 1990s, but the gap has narrowed since the late 1990s. The mother's socioeconomic position could be a sensitive indicator of the social variations in the sex ratio at birth. Conclusions : Changes in the relationship of parental social position with the SRB were detected during the 1980-2004 in Korea. This Korean experience may well be explained by diffusion theory, suggesting there have been socioeconomic differences in the adoption and spread of sex-detection technology.
Keywords
Socioeconomic factors; Sex ratio at birth(SRB); Sex selective abortion; Diffusion of Innovation theory;
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Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 2
연도 인용수 순위
1 Korea National Statistical Office. Annual Report on the Birth and Death Statistics. Daejeon: Korea National Statistical Office; 2006. (Korean)
2 Westly SB, Choe Kim M. How does son preference affect population in Asia? Asia Pacific Issues 2007; 84(1): 1-12
3 Guilmoto CZ. Characteristics of sex-ratio imbalance in India and duture scenarios. In: 4th Asia Pacific Conference on Reproductive and Sexual Health and Rights; 2007 October 29-31; Hyderabad, India. New York: United Nations Population Fund; 2007 [cited 2009 Feb 23 . Available from: URL: http://www.unfpa.org/gender/docs/studies/india.pdf
4 Li S. Imbalance sex ratio at birth and comprehensive intervention in China. In: 4th Asia Pacific Conference on Reproductive and Sexual Health and Rights; 2007 October 29-31; Hyderabad, India. New York: United Nations Population Fund; 2007 [cited 2009 Feb 23 . Available from: URL: http://www.unfpa.org/gender/docs/studies/china.pdf
5 Lee HT. Malthus and his population theory: A re-appraisal. J Popul Assoc Korea 1985; 8(2): 30-45. (Korean)   과학기술학회마을
6 Rogers, Everett M. Diffusion of Innovations. 5th ed. New York, NY: Free Press. 2003
7 Chun H, Das Gupta M. Gender discrimination in sex selective abortion and its transition in South Korea. Womens Stud Int Forum. Forthcoming 2009   DOI   ScienceOn
8 Suh MH. A strategic plan for regional difference in sex ratio at birth. Health Welfare Forum 1995; 34(7): 71-79. (Korean)
9 Jhi HR, Park JY. Factors affecting the sex ratios at birth in hospital of Taegu city. J Popul Assoc Korea 1988; 12(1): 67-76. (Korean)   과학기술학회마을
10 Ahn SK. Kyoung KH. Lee SY. Kim HJ and Song TS. Study on the utilization of ultrasonic diagnostic equipments. Rep Natl Ins Health 1986: 23; 833-934. (Korean)
11 Korea Institute for Health and Social Affairs. Survey on the National Fertility, Family and Welfare. Seoul: Korea Institute for Health and Social Affairs; 2006. (Korean)
12 Kim JW. Study on Abortion Regulations in Korea: Focusing on Maternal Health. Seoul: Korean Institute for Family Planning; 1973. (Korean)
13 Roussel L. Fertility and the family. In: United Nations, Economic Commission for Europe; Council of Europe; United Nations Population Fund, editors. European Population Conference: Proceedings; 1993 March 23-26; Geneva, Switzerland. New York: United Nations; 1994. p. 35-110
14 Sen A. Missing women. BMJ 1992; 304 (6827): 587-588   DOI   PUBMED   ScienceOn
15 Arnold F. Measuring the effect of sex preference on fertility: The case of Korea. Demography 1985; 22(2): 280-289   DOI   PUBMED   ScienceOn
16 Chung W, Das Gupta M. The decline of son preference in South Korea: The roles of development and public policy. Popul Dev Rev 2007; 33(4): 757-783   DOI   ScienceOn
17 Repetto R, Kwon TH, Kim SU, Kim DY. Economic Development, Population Policy and Demographic Transition in the Republic of Korea. Cambridge: Harvard University Press; 1981
18 Kim HG. Determinants of sex-selective induced abortion among married women: A comparative study between Taegu & Bay area in California. J Popul Assoc Korea 1997; 20(1): 65-96. (Korean)   과학기술학회마을
19 Kim SA, Chung WJ, Lee SM, Suh MH. Determinants of induced abortion among married women in Korea. Korean J Health Policy Admin 2003; 13(2): 23-43. (Korean)   과학기술학회마을   DOI
20 Kim IH, Choi BH, Lee SS. Analysis of son preference and related factors. Health Welf 1990; 10(1): 56-82. (Korean)
21 Choi BH. Sources of data for vital statistics in the republic of Korea. J Popul Assoc Korea 1991; 14(1): 104-117   과학기술학회마을
22 Allan BB, Brant R, Seidel JE, Jarrell JF. Declining sex ratios in Canada. CMAJ 1997; 156(1): 37-41
23 Leibenstein H. Economic Backwardness and Economic Growth. New York: John Wiley and Sons; 1957
24 Daegu Metropolitan Government. White Paper on Deagu women: Administration Report Code 53. Daegu: Daegu Metropolitan Government; 2001. (Korean)
25 Korea Institute for Health and Social Affairs. 30th Anniversary of Population Policy in Korea. Seoul: Korea Institute for Health and Social Affairs; 1991. (Korean)
26 Kim TH, Lee SS, Kim DH. Fertility differentials by demographic and socioeconomic characteristics: Analysis of Korean population census data. J Popul Assoc Korea 2006; 29(1): 1-23. (Korean)   과학기술학회마을   ScienceOn
27 Lee SI, Khang YH, Yun S, Jo MW. Rising rates, changing relationships: Caesarean section and its correlates in South Korea, 1988-2000. BJOG 2005; 112(6): 810-819   DOI   ScienceOn
28 Ciocco A. Variaton in the sex ratio at birth in the United States. Hum Biol 1938: 10; 36-64   ScienceOn
29 The Korean Radiological Society. Medical radiographic X-ray system: Introduction to history. Seoul: The Korean Radiological Society [cited 2008 Sep 21 . Available from: URL: http://www.radiology.or.kr/about/history/times/19.html. (Korean)
30 Park CB, Cho NH. Consequences of son preferences in a low-fertility society: Imbalance of the sex ratio at birth in Korea. Popula Dev Rev 1995; 21(1): 59-84   DOI   ScienceOn
31 Das Gupta M, Jiang Z, Li B, Xie Z, Bae HO, Chung W. Why is son preference so persistent in East and South Asia? A cross-country study of China, India and the Republic of Korea. J Dev Stud 2003; 40(2): 153-187   DOI   ScienceOn
32 Korea Institute for Health and Social Affairs. Survey on the National Fertility, Family and Welfare. Seoul: Korea Institute for Health and Social Affairs; 1985. (Korean)
33 Miller BD. Female-selective abortion in Asia: Patterns, policies, and debates. Am Anthropol 2001; 103(4): 1083-1095   DOI   PUBMED   ScienceOn
34 Sen A. Missing women: Revisited. BMJ 2003; 327(7427): 1297-1298   DOI   PUBMED   ScienceOn
35 Korea National Statistic Office. Population and Housing Census Yearbook 1990. Daejeon: Korea National Statistic Office: 1992. (Korean)
36 Kim JW, Suh JS, Lee GS, Kim KW. Lim JK, Chang KH, et al. An analysis of 1018 cases of ultrasonography. J Korean Radiol Soc 1979; 15(2): 493-504. (Korean)   과학기술학회마을   ScienceOn
37 Kim NI. An evaluation of the vital registration system in Korea. J Popul Assoc Korea 1997; 20(1): 47-63. (Korean)   과학기술학회마을
38 Jeon HS, Seo HG. Abortion in Korea since 1945. Uisahak 2003; 12(2): 129-143. (Korean)   PUBMED
39 Lim JK, Song TM. Review on induced abortions in Korea: 1964-1983. Popul Health 1984; 4(2): 28-44. (Korean)
40 Kim DS. Missing girls in South Korea: Trends, levels and regional variations. Population 2004: 59(6): 865-878   DOI