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Korean Journal of Obstetrics & Gynecology 1997;40(4):751-757.
Published online January 1, 2001.
Past 6 year's Statiscs of newborn Babies' sex RAtio at Soonchunhyang Unviersity, Medical College, Kumi Hospital and Review of Problems.
I G Shim, K B Yim, S H Nam, E C Lee, S H Lee, H B Kim
Department of Obstetrics and Gynecology, College of Medicine, Soonchunhyang University, Kumi Hospital, Korea.
The objectives of this study are; First, review the sex ratio of all newborns born at soonchunhyang kumi hospital between Jan 1, 1990 and Dec 31, 1995, Second, examine the problems associated with the sex ratio. We came to following results of this study afte analyzing 34,279 deliveries fo newborns for the past six years. The results were summarized as follows.1. Out fo total 34,269 deliveries, 26,814 deliveries were NSVD and 7,455 deliveries were C/sec. Average delivery experience pre person was1.57 times.2. The total sex ratio of the past 6 years (1990 ~ 1995) was 100:120.1 (female:male).3. The sex ratio in case of nullipara was 100:104.4 and for multilpara, 100:139.5 The difference was statistically significant.4. In case of mulitpara, the xes ratio of the second delivery was 130.3, 241.9 for the third delivery, 244.6 for the fourth delivery and 407.1 for the fifth delivery. The difference was statistially significant.5. In case of multipara, the sex ratio of the second delivery was 112.4 when the first born was male and 151.8 when the first born was female. The differnece was statistically signficant.6. The sex ratio of the third delivery was 293.1 when the first and the second borns were both female.7. Average abortion experience was 0.578 for nullipara, and 1.545 for multipara who have more than two times of delivery experiences. The differnce was statistically significant. In conclusion, in case of multipara the sex ratio of new borns shows a huge imbalance and it is fearede that this imbalnace could cause a serious social problems in the future.
Key Words: Sex ratio, Nullipara, Multipara

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