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Construction of a reference stature growth curve using spline function and prediction of final stature in Korean

Korean Journal of Orthodontics 2007³â 37±Ç 1È£ p.16 ~ 28
¾ÈÈ«¼®, À̽ÅÀç,
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¾ÈÈ«¼® ( An Hong-Seok ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ
À̽ÅÀç ( Lee Shin-Jae ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°ú±³Á¤Çб³½Ç

Abstract

º» ¿¬±¸´Â û¼Ò³âÀÇ ±³Á¤ Ä¡·á ½Ã Áß¿äÇÑ ±³Á¤ ȯÀÚÀÇ ¼ºÀå Æò°¡ ¹× ÀÜ¿© ¼ºÀå·® ¿¹Ãø ¹æ¹ýÀ» °³¹ßÇϱâ À§ÇÏ¿© ½ÃÇàµÇ¾ú´Ù. À̸¦ À§ÇÏ¿© Çѱ¹ÀÎÀÇ Àü±¹Àû Ç¥º» ÀÚ·á Áß¿¡¼­ $2\;{\sim}\;20$¼¼ ³²ÀÚ 4,893¸í, ¿©ÀÚ 4,987¸íÀÇ Å° ÀڷḦ ÀÌ¿ëÇÏ¿© ¼ºº° ¿¬·Éº° Å°¿¡ ´ëÇÑ ¼ºÀå °î¼±À» 3Â÷ ½ºÇöóÀÎ ÇÔ¼ö(NCSF)·Î ±¸ÇöÇÏ¿´´Ù. ÀÌÈÄ ¼ºÀå ¿¹Ãø ¾Ë°í¸®ÁòÀ» °³¹ßÇÏ°í À̸¦ ÀÓÀÇ·Î ¼±ÅÃµÈ 200¸íÀÇ Á¾´Ü ¼ºÀå ÀڷḦ ÀÌ¿ëÇÏ¿© °ËÁõÇÏ¿´´Ù. °ËÁõ¿¡´Â ÃÖÁ¾ Å° ¿¹Ãø Á¤È®¼º°ú °ËÁõ Ç¥º»ÀÇ ¸ðµç ¿¬·É¿¡ ´ëÇÑ Å° ¿¹Ãø ¿ÀÂ÷ ºÐ¼® ¹× NCSF ¼ºÀå °î¼±ÀÇ ÀûÇÕ¼º °Ë»ç°¡ Æ÷ÇԵǾú´Ù. ±× °á°ú NCSF ¼ºÀå °î¼±Àº ±âÁØ ¼ºÀå °î¼±À» Ç¥ÇöÇϴµ¥ ¸Å¿ì ÀûÇÕÇÑ °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç ÃÖÁ¾ Å° ¿¹Ãø Á¤È®¼ºµµ ³ô¾Ò´Ù. ¶ÇÇÑ ¿¹Ãø Á¤È®¼ºÀº ³²ÀÚ º¸´Ù ¿©ÀÚ°¡ À¯ÀÇÇÏ°Ô ³ô¾Ò´Ù. ÀÌ·¯ÇÑ °á°ú¿¡µµ ºÒ±¸ÇÏ°í °ËÁõ Ç¥º»ÀÇ ¸ðµç ¿¬·É¿¡ ´ëÇÑ Å° ¿¹Ãø ¿ÀÂ÷ÀÇ ¾ç»óÀÌ µ¶¸³¼º°ú Á¤±Ô¼ºÀÌ ºÎÁ·ÇÑ ´ÜÁ¡µµ ³ªÅ¸³µ´Ù. °á·ÐÀûÀ¸·Î º» ¿¬±¸ °á°ú µµÃâµÈ NCSF ¼ºÀå °î¼±À» ÀÌ¿ëÇÑ ¼ºÀå ¿¹Ãø ¹æ¹ýÀÇ ³ôÀº Á¤È®¼º¿¡µµ ºÒ±¸ÇÏ°í °³ÀÎÀÇ Á¾´Ü ¼ºÀå¿¡ Á» ´õ ÀûÇÕÇÑ ¼ºÀå ¸ðÇüÀÇ °³¹ßÀÌ ÇÊ¿äÇÒ °ÍÀ¸·Î »ý°¢µÇ¾ú´Ù.

Objective: Evaluation of individual growth is important in orthodontics. The aim of this study was to develop a convenient software that can evaluate current growth status and predict further growth. Methods: Stature data of 2 to 20 year-old Koreans (4893 boys and 4987 girls) were extracted from a nationwide data. Age-sex-specific continuous functions describing percentile growth curves were constructed using natural cubic spline function (NCSF). Then, final stature prediction algorithm was developed and its validity was tested using longitudinal series of stature measurements on randomly selected 200 samples. Various accuracy measurements and analyses of errors between observed and predicted stature using NCSF growth curves were performed. Results: NCSF growth curves were shown to be excellent models in describing reference percentile stature growth curie over age. The prediction accuracy compared favorably with previous prediction models, even more accurate. The current prediction models gave more accurate results in girls than boys. Although the prediction accuracy was high, the error pattern of the validation data showed that in most cases, there were a lot of residuals with the same sign, suggestive of autocorrelation among them. Conclusion: More sophisticated growth prediction algorithm is warranted to enhance a more appropriate goodness of model fit for individual growth.

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Reference growth curve;Spline function;Stature prediction

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SCI(E)
KCI
KoreaMed