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Korean Journal of Obstetrics & Gynecology 2001;44(10):1851-1856.
Published online October 1, 2001.
Change of Birth weight-gestational age table.
Gyoung Hoon Lee, Yong Wook Kim, Kwang Beom Lee, Eun Jung Seo, Moon Sung Son, Hyun Gyoung Ahn, Eik Won Seok, Young Jin Choi, Gwang Jun Kim, Suk Young Kim, Byung Cheul Hwang, Yu Duk Choi, Sang Yong Kim, Seok Joon Sohn
1Department of Obstetrics and Gynecology, Gachon Medical School, Gil Medical Center, Inchon, Korea.
2Department of Preventive Medicine, Chonnam National University Medical School.
Abstract
OBJECTIVE
The birth weight distributions are obtained to be classified according to the duration of pregnancy, and then compared with other results already published in literature to verify the difference. METHODS: A total of 17,291 deliveries in Gachon medical center hospital from January 1996 to December 1999 is retrospectively reviewed. The data of 28~42th week of gestation are analysed, and the 10th, 25th, 50th, 75th and 90th percentiles of birth weight are determined for each week and also according to sex and parity. Furthermore the 10th, 50th, 90th percentiles are compared with those from other reports. RESULTS: 1. The 10th, 50th, 90th percentiles of birth weight classifed according to gestational age are as follow : in 28th week of pregnancy, 1,068, 1,240 and 1,812 g; in 32th week, 1,470, 1,890 and 2,266 g; in 36th week, 2,170, 2,720 and 3,240 g; in 40th week, 2,910, 3,370 and 3,870 g; in 42th week, 2,977, 3,475 and 4,023 g.2. The mean birth weight of the male neonates is greater than that of the female ones from 37th week to 41th week (p<0.01).3. Comparisons of 10th, 50th, 90th percentiles of birth weight with Park groups show that there is an increase of birth weight by 100~144 g. CONCLUSION: Comparison of the birth weight-gestational age table with ones published by other groups shows that infants tend to be heavier.
Key Words: Birth weight-gestational age table


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