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. 2010 Oct 31;53(10):880–885. doi: 10.3345/kjp.2010.53.10.880

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Copyright © 2010 by The Korean Pediatric Society

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 1 — Comparison of maternal age with the total number of live births nationwide, multiple births nationwide, and ART in Korea during 2006. Comparison of the maternal age between a) the total live birth group nationwide, b) the multiple births group nationwide, and c) the ART group in Korea during 2006. The maternal age was between 30 and 34 years in 41.9% of women in group a), 48.6% of women in group b), and 45.2% of women in group c). The maternal age was between 35 and 39 years in 10.5% of women of group a), 14.6% of women of group b), and 31.4% of women of group c). The maternal age was over 40 years in 1.3%, 1.0%, and 12.1% of women of each group, respectively. The maternal age was very high in the ART group.