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ù Ãâ»ê °£°Ý¿¡ µû¸¥ ½ÖÅÂ¾Æ Ãâ»ý·ü¿¡ °üÇÑ ¿¬±¸; 2010~2015

Length of First Birth Interval and Incidence of Twin Birth in Korea; 2010~2015

Çѱ¹¸ðÀÚº¸°ÇÇÐȸÁö 2017³â 21±Ç 2È£ p.112 ~ 118
KMID : 0892720170210020112
¹Ú»óÈ­ ( Park Sang-Hwa ) - ¼­¿ï´ëÇб³ ÀÇÇבּ¸¿ø Àα¸ÀÇÇבּ¸¼Ò

ÀÓ´Þ¿À ( Lim Dar-Oh ) - °øÁÖ´ëÇб³ º¸°ÇÇàÁ¤Çаú

Abstract

º» ¿¬±¸´Â Åë°èû 2010~2015³â Ãâ»ý½Å°í ÀÚ·á(2,736,296 °Ç)¿¡¼­ Ãâ»ý¼øÀ§ 1¾Æ(ÃÊ»êºÎ)À̸鼭 ´ÜÅ ¹× ½ÖÅÂ¾Æ Ãâ»ý ¿ø½ÃÅë°è 1,356,204°ÇÀ» ´ë»óÀ¸·Î °áÈ¥ ÈÄ Ã¹ Ãâ»ê °£°Ý¿¡ µû¸¥ ½ÖÅÂ¾Æ Ãâ»ý·üÀ» ºÐ¼®ÇÏ¿´´Ù. ù Ãâ»ê °£°Ýº° Á¡À¯À²Àº 0~12°³¿ùÀÌ 41.5%, 13~24°³¿ù 30.7%, 25~36°³¿ù 13.1%, 37~48°³¿ù 6.2%, 85°³¿ù ÀÌ»óÀÌ 2.1%¿´À¸¸ç, Æò±Õ ù Ãâ»ê °£°ÝÀº 21.5°³¿ùÀ̾ú´Ù. ù Ãâ»ê °£°Ýº° ½ÖÅÂ¾Æ Ãâ»ý·üÀº 12°³¿ù ÀÌÇÏ 0.8%, 13~24°³¿ù 1.2%, 25~36°³¿ù 3.1%, 37~48°³¿ù 5.8%, 73~84°³¿ùÀº 11.0%·Î ù Ãâ»ê °£°ÝÀÌ ±æ¾îÁö¸é ½ÖÅÂ¾Æ Ãâ»ý·üµµ Áõ°¡ ÇÏ¿´´Ù. ù Ãâ»ê °£°Ý 12°³¿ù ÀÌÇÏ¿¡ ºñÇØ 13~24°³¿ùÀÇ ½ÖÅÂ¾Æ Ãâ»ý ¿ÀÁîºñ´Â 1.510 (95% ½Å·Ú±¸°£: 1.449~1.574), 25~36°³¿ùÀº 3.941 (3.784~4.105), 73~84°³¿ùÀº 13.244 (12.458~ 14.080)·Î Åë°èÀûÀ¸·Î À¯ÀÇÇÏ¿´´Ù. ù Ãâ»ê °£°Ý°ú Ãâ»ê ¿¬·ÉÀ» ÅëÇÕÇÑ ½ÖÅÂ¾Æ Ãâ»ý·ü¿¡¼­´Â ù Ãâ»ê °£°ÝÀÌ 72°³¿ù ÀÌÇÏ¿¡¼­´Â 34¼¼ ÀÌÇÏ º¸´Ù 35¼¼ À̻󿡼­ ½ÖÅÂ¾Æ ¹ß»ý À§Çèµµ°¡ ³ô¾ÒÀ¸³ª. 73°³¿ù À̻󿡼­´Â 34¼¼ À̻󿡼­ À§Çèµµ°¡ ³ô°Ô ³ªÅ¸³µ´Ù. ÀÚ¿¬ Àӽſ¡¼­ ÀӽŠ¼Ò¿ä±â°£ÀÌ ±æ¾îÁö¸é ½ÖÅÂ¾Æ Ãâ»ý·üÀÌ °¨¼ÒÇÏ´Â °ÍÀ¸·Î º¸°íµÈ ¹Ù ÀÖÀ¸³ª, º» ¿¬±¸¿¡¼­´Â ù Ãâ»ê °£°ÝÀÌ ±æ¾îÁö¸é ½ÖÅÂ¾Æ Ãâ»ý·üÀÌ Áõ°¡ÇÏ¿´´Ù. À̴ ù Ãâ»ê °£°ÝÀÌ »ó´ëÀûÀ¸·Î ±ä Áý´Ü¿¡¼­´Â º¸Á¶»ý½Ä¼ú°ú °°Àº Ãâ»êÄ¡·á¿ä¹ýÀÇ Àû¿ë ±âȸ°¡ Å©±â ¶§¹®ÀÎ °ÍÀ¸·Î ÃßÃøÇÒ ¼ö ÀÖÀ¸³ª, ÀÌ·¯ÇÑ ºÐ¾ß¿¡ ´ëÇÑ Á» ´õ ü°èÀûÀÌ°í ½ÉÃþÀûÀÎ ¿¬±¸°¡ ÇÊ¿äÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù.

Purpose: To compare the incidence of twin births with the length of first birth interval (LFBI: from marriage to first birth) among primiparous women.

Methods: The birth certificated data of Korea Statistics from 2010 to 2015 were used for this analysis. There were 1,356,204 births of primiparous women from total birth cases (2,736,296 births). The data involving multiparous women, teenage birth, extra-marital birth, and triplet birth cases were excluded from all analyses. Odds ratio and 95 percent confidence intervals were calculated from logistic regression to examine the risk of twin birth by LFBI adjusted for year of birth, maternal age, paternal age, age difference between couples, and maternal education and occupation.

Results: The frequency of LFBI was 41.5 percent in ¡Â12 months, 30.7 percent in 13~24 months, 13.1 percent in 25~36 months, and 2.1 percent in LFBI of ¡Ã85 months. The mean LFBI was 21.5 months. The incidence of twin birth increased with prolonged LFBI. The twin birth rates per LFBI were 0.8 percent, 3.1 percent, 7.9 percent, and 11.0 percent in LFBI of ¡Â12 months, 25~36 months, 49~60 months, and 73~84 months, respectively. Odds ratio of twin births rate by LFBI were 1.510 (95% confidence interval: 1.449~1.574) for the LFBI of 13~24 months, 9.839 (9.390~10.309) for 49~60 months, and 13.244 (12.458~14.080) for ¡Ã73~84 months, each compared with LFBI of ¡Â12 months. Odds ratio of twin birth rate in LFBI of ¡Â72 months was higher in women aged 35 and older, as compared to women aged ¡Â34 years. Odds ratio of twin birth rate by maternal age (¡Â34 years versus ¡Ã35 years) reversed in LFBI of ¡Ã73 months.

Conclusion: The risk of twin birth increased significantly with prolonged LFBI. There is a need to understand the factors (fertility therapy and etc.) to increased risk of twin birth in prolonged LFBI.
KeyWords

first birth interval, twin birth, prolonged LFBI
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