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KMID : 0367419770180030021
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Journal of Korean Pediatric Society
1977 Volume.18 No. 3 p.21 ~ p.35
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Perinatal Mortality Rate
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韓東觀/Han, Dong Gwan
朴瓊淑/Park, Kyung Sook
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Abstract
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The purpose of this clinical study is to estimate the perinatal mortality rate in different hospital births which is associated with maternal obstetric conditions from Jan. 1970 through Dec. 1972. For 3 years there were 11,880 births that were based on 11,336 single births, 312 twin births and 232 Korean-Caucasian births who were delivered at Severance(7,844 births), Jonju Presbyterian (2,270 births) and Wonju Union Christian Hospital (1, 766 births).
The perinatal mortality rate was calculated at fetal deaths of 20 or more weeks´ gestation plus neonatal deaths under 28 days after births.
The result; of clinical analysis for 11, 336 single births were summarized as follows:
1. We had 544 deaths out of 11, 336 single births, and the perinatal mortality rate came to 48.02±.01. In twin births, we had 49 deaths out of 312 and the mortality rate was 157.120.59. In Korean-Caucasian births, 6 deaths out of 232 and mortality rate was 25.9±10.45. Above all, 599 out of 11, 880 births whose perinatal mortality rate was 50.4±2.00. We had 293 neonatal deaths and the mortality rate was 24.7. Fetal deaths were 306 cases and the mortality rate was 25.7. The perinatal mortality rate in twin births was 3 times higher than that in single births. The perinatal mortality rate in our study was almost twice as much as that of well developed countries.
2. We had more male than female among perinatal deaths, but it was not satistically significant (P>O.05). The 2ndary sex-ratio of male to female was 109.5 to 100.
3. Among 11, 050 singl live-births, we had 878 cases of low-birth-weight babies, which were 7.9%, 21% of whom died. Full-term babies wee 92.1% and 0.7% of them died. The mortality rate of low-birth-weights was 30 times that full-term babies. Among 258 cases of neonatal deaths, low-birth-weight cases were 71.3% which were 2/3 of all neonatal deaths.
4. The perinatal mortality rate was increased in cases of maternal age was under 20over 40. It was interesting to noticed that it was higher in multipara, ones who had delivered more than 5 times, frequent abortions (more than 4 times) and ones who have children more than 4. The rate was also higher in para-one than para-two.
5. The perinatal mortality rate was 5.9 times higher in abnormal presentation of fetus and 3.7 times higher in difficult delivery than the normal ones
6. In cases of anemic mother (Hgb.: under 10gm5?o, Hct.: under 32%), the perinatal mortality rate was double compare to that of non-anemic ones.
7. The perinatal mortality rate of babies from mothers without antenatal care was 4 times that of mothers who had. That was statistically significant (P<0.05).
8. Two th;rd of the low-birth-weight and full-term babies were died within 24 hours; 63.6,% of all which indicated most of deaths were occurred in the first day of birth. The neonatal death rate within first week after birth was 86.8% and that between 8 th day through 28th was 13.2%.
9. The obstetric complications influenced perinatal mortality rate were uterine rupture, prolapse of arms and legs, abruptio placenta etc., and diseases influenced increased number of death were toxemia, spontaneous premature rupturc of membrane, abruptio placenta and placenta previa etc.
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