• 한국인구학
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• 제3권1호
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• pp.52-61
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• 1979

The purpose of the study is to construct a life table for population. It is based on the fraction of last year of life, $a_X$. The data necessary for this purpose have been obtained from the 1975 Population Census Report of Korea and the Vital Statistics of Shindong-myon, Chunseong-gun, Gangwon Province which is collected for the Seoul National University public health program. Age specific death rate is adapted by the Model Life Table, West, Level 21. For the age groups of less than 5 years of age, when the record of vital events can be obtained, the fractions are calculated from the community vital statistics. And for the age groups older than 5 years of age, Greville's Method is used. The findings are summarized as follows: 1) The fraction of last year of life in infantile group is 0.3684 for males, 0.3711 for females, and in 1-4 years of age group 1.2164 for males, 1.2274 for females. Both are more than those of Japan and U.S. in 1963. 2) Infant mortality rate is 42.37 for males, 31.77 for females per 1,000 live births. 3) The mortality curves show that a higher rate is observed under 1 year of age. It drops to the lowest point at around 10 years of age and rises again as the age increases. 4) The age estimated half-survival rate is during the age group of 70-74 for both sexes. 5) Life expectancy at the age of 0 shows 65.73 years for males and 69.22 years for females.

• Clinical and Experimental Pediatrics
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• 제54권11호
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• pp.429-435
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• 2011

Although Korean population has been growing steadily during the past four decades, the nation is rapidly becoming an aging society because of its declining birth rate combined with an increasing life expectancy. In addition, Korea has one of the lowest fertility rates in the world due to fewer married couples, advanced maternal age, and falling birth rate. The prevalence of low birth weight infants and multiple births has been increased compared with the decrease in the birth rate. Moreover, the number of congenital anomalies is expected to increase due to the advanced maternal age. In addition, the number of interracial children is expected to increase due to the rise in the number of international marriages. However, the maternal education level is high, single-mother birth rate is low, and the gender imbalance has lessened. The number of overweight babies has been decreased, as more pregnant women are receiving adequate prenatal care. Compared to the Asian average birth weight, the average birth weight is the highest in Asia. Moreover, the rate of low birth weight infants is low, and infant mortality is similarly low across Asia. Using birth data from Statistics Korea and studies of birth outcomes in Korea and abroad, this study aimed to assess the changes in maternal and infant characteristics associated with birth outcomes during the past four decades and identify necessary information infrastructures to study countermeasures the decrease in birth rate and increase in low birth weight infants in Korea.

• Neonatal Medicine
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• 제25권1호
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• pp.29-36
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• 2018

Purpose: The purpose of this study was to investigate the outcome after changes in the treatment strategies for very low birth weight infant (VLBWI) in a single neonatal intensive care unit (NICU) center. Methods: We performed a retrospective review of 300 VLBWI born from 1st January 2010 to 31th December 2016. We compared the outcomes including survival rate, birth weight (BW), gestational age (GA), and morbidities between period I (2010-2013, P-I) and period II (2014-2016, P-II). Results: The average survival rate was not different between P-I and P-II. However, the survival rate of ${\leq}24$ weeks' GA, 25 weeks' GA, 26 weeks' GA were 57%, 69%, 93% respectively in P-II and 31%, 59%, 87% in P-I respectively. The survival rate of infants with birth weight <500 g, 500-749 g, 750-999 g were 100%, 55%, 90% respectively in P- II and 50%, 24%, 80%, respectively in P-I. The incidence of bronchopulmonary dysplasia (BPD) was higher in P-II than in P-I (P=0.012) and moderate-to-severe BPD was also higher in P-II (P=0.004). Incidence of patent ductus arteriosus (PDA) with treatment, necrotizing enterocolitis (stage ${\geq}2$), and abnormal brain sonography were significantly lower in P-II (P=0.027, P=0.032, P=0.005). Incidences of retinopathy of prematurity (ROP) with laser treatment and early sepsis were not different. Conclusion: The survival rate and complications of VLBWI were improved in period II, especially in less than 750 g and below 26 weeks, except incidence of BPD. Changes of NICU strategies were effective to improve mortality and morbidity in VLBWI.

• Journal of Chest Surgery
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• 제16권1호
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• pp.171-175
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• 1983

The authors made a clinical study of 107 cases of empyema who were treated at Department of Thoracic Surgery of Chungnam National University Hospital during the period of Jan. 1976 through Aug. 1982 and compared the empyema of infant and children with that of adults. Following was the remits: 1. Male was predominant to female with the ratio of 2.5 to 1 and adult to infant was 2.6 to 1. 2. The cardinal symptoms were dyspnea, coughing, chest pain and fever. 3. Positive remit of bacteriological culture study was reported in 57% and the most common causative organism was staphylococcus in infant and childhood, E. coil in adult. 4. Most frequent predisposing factors of thoracic empyema in infant and childhood was pneumonia [53%], and in adult was pulmonary tuberculosis [40%]. 5. Treatment were combined with antibiotics therapy and several surgical procedures for empyema. 24 cases [22.4%] required open thoracotomy. 6. The mortality rate was 7.4% [8/107]. 86 cases [80.4%] were discharged with recovery and improvement.

• Neonatal Medicine
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• 제18권2호
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• pp.182-188
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• 2011

목적: 한국에서 최근 신생아사망률(NMR), 영아사망률(IMR)는 주산기, 신생아, 소아과 의료의 발전으로 현저한 개선을 이루었다. 본 연구는 한국에서 최근 5년간 IMR 중에서 NMR가 차지하는 비율을 알아보아, NMR의 개선이 IMR의 감소에 미친 영향을 알아보고자 한다. 방법: 한국 통계청의 출생 자료 및 신생아 및 영아에 관련된 통계와 보고서의 자료를 기초로 하였다. 2005-2009년 간 한국에서 영아사망 중에서 신생아 사망이 차지하는 비율의 변화와 출생 시의 출생체중와 임신나이에 따른 분포별 사망이 영아사망에 차지하는 비율을 조사하였다. 결과: 2005-2009년 간 한국의 총 출생 수는 감소하였으나, 미숙아 수, 저체중출생아(LBWI) 수, 극수제체중출생아(VLBWI) 수는 증가하였다. 연도별 신생아 및 영아 사망 수, NMR, IMR는 감소하였다. 전체 영아사망 중에서 신생아사망이 차지하는 비율은 2005년 57.1%, 2009년 56.3%로 전체적으로 반 이상을 차지하였다. 신생아사망 중에서는 후기 신생아사망 보다는 조기 신생아사망의 비율이 높았다. 연도별로 출생 시 정상체중아, LBWI, VLBWI, 미숙아 사망 수는 감소추세 이었다. 전체 영아사망 중에서 출생 시 정상체중아에서 사망과 출생 시 LBWI 사망의 비는 2005년 42.1:57.9, 2009년 44.2:55.8, 전체 영아사망 중에서 출생 시 만삭아에서 사망과 미숙아 사망의 비는 2005년 42.9:57.1, 2009년 44.6:55.4로 LBWI, 미숙아의 사망이 높았다. 5년간 평균 수치의 출생체중별, 임신나이별 신생아 사망 비율도 관찰하였다. 결론: 한국에서 저출산 시대에 총 출생 수는 감소하고 있지만, 미숙아 LBWI의 빈도는 증가 추세이다. 한국에서 전반적인 연도별 전체 신생아 및 영아사망 수의 감소와 NMR, IMR의 개선과 IMR에서 NMR이 차지하는 비율의 감소 추세 등이 고무적이지만, 아직도 IMR에서 NMR의 비율은 반 정도를 차지하고 있다. 향후 한국에서 IMR의 보다 좋은 개선을 위하여 NMR의 지속적인 감소가 필요할 것으로 사료되며, 이를 위해서 미숙아 LBWI, 이중에서도 고위험 신생아인 VLBWI와 임신나이 32주 미만의 미숙아의 예후를 더욱 향상해야 할 것이다. 본 자료를 향후 신생아 관리의 기초로 활용되기를 기대한다.

• Journal of Chest Surgery
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• 제33권8호
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• pp.630-637
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• 2000

Backgroud: There are well-known problems in the management of low weight neonates or infants with congenital heart defects. In the past, because of a perceived high risk of operations using cardiopulmonary bypass(CPB) in these patients, there was a tendency for staged palliation without the use of CPB. However, the recent trend has been toward early reparative surgery using CPB, with acceptable mortality and good long-term survival. Therefore we reviewed our results of the operations in infants weighing less than 3kg and considered the technical aspect of conducting the CPB including myocardial protection. Material and Method: Between Jan. 1995 and Jul. 1998, 28 infants weighing less than 3kg underwent open heart surgery for many cardiac anomalies with a mean body weight of 2.7kg(range; 1.9-3.0kg) and a mean age of 41days(range; 4-110days). Preoperative management in the intensive care unit was needed in 20 infants and preoperative ventilator support therapy in 11. Total correction was performed in 23 infants and the palliative procedure in 5. Total circulatory arrest was needed in 11 infants(39%). Result: There were seven hospital deaths(25%) caused by myocardial failure(n=3), surgical failure(n=2), multiorgan failure(n=1), and sudden death(n=1). The median duration of hospital stay and intensive care unit stay were 13days(range; 6-93days) and 6days(range; 2-77days) respectively. The follow-up was achieved in 21 patients and showed three cases of late mortality(15%) and a one-year survival rate of 62%. No neurologic complications such as clinical seizure and intracranial bleeding were noticed immediately after surgery and during follow-up. Conclusion: The early and late mortality rate of open heart surgery in our infants weighing less than 3 kg stood relatively high, but the improved outcomes are expected by means of the delicate conduct of cardiopulmonary bypass including myocardial protection as well as the adequate perioperative management. Also, the longer follow-up for the neurologic development and complications are needed in infants undergoing circulatory arrest and continuous low flow CPB.

• Clinical and Experimental Pediatrics
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• 제51권3호
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• pp.233-236
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• 2008

In recent years, Korea has experienced a steadily declining birth rate, which is a serious social problem in the country. Although living conditions have improved, the birth rates for low birth weight infants and preterm babies has increased because more and more women choose to give birth later in life and the social environment has changed. The rise in low birth weight infants may increase infant mortality rates and morbidity rates. However, the recent improvements in neonatal care has elevated the survival rate of low birth weight infants up to 90 percent and lowered the weight of the very low birth weight infants that can now be saved. In this study, we used dynamic population statistics from the Korea National Statistical Office, which represents the current trend of social stratification and the population of this period. We analyzed birth records for a seven-year period and studied the changes in the delivery rate of preterm and low birth weight infants and the problems related to those changes. The results show that the rate of low birth weight infants has increased from 3.79% to 4.35% for the past seven years. The rate of preterm babies rose from 3.79% to 4.89%. The number of babies born from mothers aged 35 or more went up from 6.69% to 11.83% of the total number of the babies born. As maternal age has risen, the risks of delivering a preterm or low birth weight infant have also increased.

• Journal of Chest Surgery
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• 제2권1호
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• pp.41-49
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• 1969

The authors made a clinical study of 80 cases of empyema who were diagnosed and treated at department of chest surgery, St. Mary`s Hospital, Chatholic Medical College, during the period of May.l964 through April.1969 and compared the empyema of infant and children with that of adults. 1. In age and sex ditribution, infant was 6 cases, childhood 22 cases and adult 52 cases. The ratio of male to female was 2.2:1. There`s a little difference in infant-childhood but prominence of males over females in adults was being 3. 3:1, in its ratio. 2. The cardinal symptoms were cough [61.3%], fever [60.0%] and dyspnea [52.8%]. The leukocytosis were observed in 83.7% of all cases, 96.2% of infant-childhood and 76.9% of adults. The hemoglobin level showed subnormal in 82.1% of infant-childhood and in 55.8% of adults. 3. Most frequent lesion to predisposing factor of empyema was pneumonia [43.7%],being prominent in infants children [64.3%] to that of adult 4. The Pathogenic organism by culture in 75 cases of empyema were staphylococuss [48%], streptococuss[9.3%], Gram[-] bacilli [9.3%], Klebsiella[2.7%], pneumococcus[4.0%], E. coli [5.4%] and no growth 21.3% in over all. Among the cases of empyema. staphlocal origin was 62.9% in infant-childfood and 39.6% adults. 5. Staphylococci were most susceptible to erythromycin [86. 1%], Kanamycin [75.0%], albamycin [61.7%] and neomycin [52.8%] but most resistant to penicillin, Chtoramphenicol and terramycin. 6. In the treatment of empyema, of 53 cases were closed thoracotomy drainage and the remainder of cases by open thoracotomy, decortication, thoracoplasty and pleuropneumonectomy. we could attain favourable results by only the closed thoracotomy in infant-childhood, 28 cases. 7. The mortality rate was 6.3% in over all; adult 3 cases, infant and children 2 cases. 3 cases of these, were due to staphylococcal infection.

• 한국인구학
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• 제29권2호
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• pp.89-113
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• 2006

본 연구는 개발도상국의 지역별 인구변천 유형과 특징을 검토하는데 그 목적이 있다. 이를 위해 본 연구는 개발도상국의 인구변천 유형을 인구변천 단계와 관련시키고 있다. 그 다음으로 출산력과 사망력이 지난 40년간 어떻게 변화되어 왔는지를 다양한 지표를 활용하여 검토하고 있다. 분석결과 출산력의 경우 아프리카 지역은 최근까지도 비교적 높은 출산율을 보여 인구변천의 제2단계에 돌입한 것으로 보인다. 이 지역은 또한 알제리, 리비아, 모로코 등 아프리카 북부지역의 국가와 나머지 국가들이 인구변천 과정에서 뚜렷한 차이를 보인다. 서남아시아의 국가들 역시 인구변천의 제2단계에 있다고 볼 수 있다. 서남아시아 국가 증 아프카니스탄과 예맨은 지난 40년 간 출산력 수준의 변화는 거의 없고 사망력 수준만 약간 감소하는 전형적인 아프리카 형태를 보이고 있다. 이에 반해 동아시아 지역은 출산력의 감소 속도가 사망률의 감소 속도보다 훨씬 빠르게 나타나서 인구의 증가폭이 둔화되는 양상을 보이는 인구변천의 제3단계에 속한다고 볼 수 있다. 중남미 지역 국가들도 동남아시아 국가들의 경우와 비슷하게 출산력의 감소 속도가 사망력의 감소 속도보다 빠르게 나타나 인구의 증가 폭이 둔화되는 인구변천의 제3단계에 속한다. 특히 동남아시아의 한국과 싱가포르는 매우 빠른 속도로 출산력 감소를 보였으며 최근에는 오히려 저출산이 문제가 될 정도로 낮은 출산력 수준을 보이고 있다. 사망력의 경우 특히 평균수명은 지역별로 큰 차이를 보인다. 평균수명이 가장 높은 국가 중의 하나인 싱가포르가 78.0세인데 반해 르완다는 39.9세에 머무르고 있다. 아프리카의 평균수명이 낮은 것은 여러 가지 설명이 가능하나 최근에 크게 확산되고 있는 에이즈의 영향이 가장 클 것으로 판단된다.

• 보건행정학회지
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• 제30권3호
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• pp.301-310
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• 2020

Background: In this study, we aimed to investigate the recent trends for health care indicators including maternal mortality ratio, infant mortality rate, under-five mortality rate, life expectancy, years of life lost, and healthcare resources in South Korea, North Korea, Germany, Russian Federation, Mongolia, Vietnam, China, Czech Republic, Poland, and Hungary. Methods: We used data from five sources: World Health Organization, Federal Institute for Population Research, World Bank, Organization for Economic Cooperation and Development health statistics, and national statistics. Results: In the early 1990s, health indicators continued to improve in countries that switched to the health insurance system, but the gap widened in North Korea as health indicators worsened. Conclusion: The establishment of a sustainable health care system after unification of the Korean peninsula requires substantial changes in the health care system and efforts to improve the health of North Koreans.