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Obstet Gynecol Sci > Volume 53(1); 2010 > Article
Korean Journal of Obstetrics & Gynecology 2010;53(1):29-34.
DOI: https://doi.org/10.5468/kjog.2010.53.1.29    Published online January 1, 2010.
Risk factors of preterm delivery and survival rate of preterm infants in Bucheon.
Tae Hee Kim, Hae Hyeog Lee, Soo Ho Chung, Sung Shin Kim, Yeon pyo Hong
1Department of Obstetrics and Gynecology, College of Medicine, Soonchunhyang University, Bucheon, Korea. hhl22@chol.com, hhl22@schbc.ac.kr
2Department of Pediatrics, College of Medicine, Soonchunhyang University, Bucheon, Korea.
3Department of Preventive Medicine, College of Medicine, Chung-Ang University, Seoul, Korea.
Abstract
OBJECTIVE
The aim was to compare risk factors of preterm delivery and survival rate in preterm infants. METHODS: There were 723 preterm deliveries among 3,299 deliveries in our hospital from February, 2001 to December, 2006. We analyzed risk factors through women who give birth to preterm infants. The risk factors of preterm delivery were evaluated survival rate, very low-birth weight (VLBW) infant ratio, preterm infants to 751 preterm infants who was admitted at newborn intensive care unit. The data were retrospectively reviewed of hospital record and statistical analysis was performed using chi-square test and logistic regression test. RESULTS: The incidence rate of preterm birth increased. The risk factors that preterm premature rupture of membranes (PROM) (P<0.001), pregnancy induced hypertension (PIH) (P<0.001), twin pregnancy (P<0.001), placenta previa (P=0.009) and placenta abruption (P=0.041) as women that give birth to preterm infants were statistically significant. But, anemia (P=0.170), previous cesarean section history (P=0.780), uterine myoma (P=0.848), previous appendectomy history (P=0.999) did not statistically significant. Survival rate of total preterm infants was average 95%. And survival rate of VLBW infants was 86%. CONCLUSION: It was found to be risk factors for preterm delivery with PROM, PIH, and placenta previa. The VLBW infants with less than 33 gestational weeks are increased every year but total survival rate is not different. We hope that we propose to research the cause of preterm delivery and survival rate of preterm infants prospectively.
Key Words: Preterm delivery, Preterm infants, Very low birth weight, Survival rate, Risk factor, Morbidity


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