• Journal of Preventive Medicine and Public Health
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• 제10권1호
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• pp.109-117
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• 1977

The improvement of civil registration reguires continuous study rather than periodic efforts. More and better statistics, however, are urgently required to formulate development programs and planning. Data obtainable from the civil registration are usually marred by errors of omission which are difficult to correct. This study aimed at finding out the problems occuring when a set of crude birth registration data in a rural area is used. Data Sources of this study are: 1) For birth registration: government birth registration records obtained from myun office and other government offices. 2) For the actual number of births: birth and child records from the Kang Wha Community Health Project The study area is Sunwon Myun and Naega Myun in Kang Wha Gun, Gyunggido. The referrance period for the accumulated data is one full year: Jan. 1st 1975-Dec. 31st 1975 Major findings are as follows: If the number of registered births is compared with the actual number of births which occured in the target area, the former is far greater than the latter. The general assumption usually is, that the actual number of births exceeds the registered number of birth in Korea. The observation from this specific study in this specific target area, shows the opporsite trend. The number of births which were registered is 550. This is more than two times as much as the number of births which actually occured during the year of 1975 in the study area namely 256. The difference comes mainly from the fact that many cases of births from other areas were registered in the target area. In other words birth is not registered where it occured but where the permanent residence adress is. Among 550 births registered in the target area 66% did not occur in the target area. Only one third of all registered births were registered within the legal period for birth registration which is 2 weeks. 34% of the registered births actually occured in 1974, but were registered in 1975. In 55% of the cases a difference was observed between the actual date of birth and the registered date of birth. From the 256 births which occured in the target area, only 153 births (59%) were registered at the myun office and the remaining 130 births (41%) were not resistered there in the year of study. 6% of the 550 cases listed as registered have no seperate registration sheets. Nevertheless, they definitly have been registered in the birth list at the myun office. 3% of the 550 cases are not recorded in this list but have a separate registration sheet at the myun office. In conclusion, birth registration data have many errors and problems. Their usefulness as. a source for vital and other statistics should be reconsidered. A series of sound methological studies will be necessary to establish their actual usefulness. A continuous and permanent compulsory system of birth recording is needed.

• 보건행정학회지
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• 제14권1호
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• pp.148-168
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• 2004

To investigate the effect of parents' social class on birthweight in Korea during the period of transition to a market economy, 1995-2001. Methods: All births resulting from pregnacies reported in 1995-22001(n=4,298,374) were studied with respect to social variation in birthweight. The results were adjusted for maternal age, parity, parents' education, gestational age, total births, the dead births among total births, the number of births in one delivery. Results: Between 1995 and 2001, mean birth weight was 3271g and low birth rate was 3.41%. Maternal education, faternal education, parents' occupation, the number of birth in one delivery, total births, gestational age, and the number of deaths among. total births were all independently related to the birthweight. Parents with lower education showed higher low-birthweight rates compared with parents with university level of education(OR: 2.16 for mother and 1.68 for father). Especially, mother's education showed stronger relationship with birthweight than fathers' education. The differences in birth weight by parents' social class, especially parents' educational level became stronger between 1995 and 2001. Discussion: This study suggests that the social differences of birth weight were increasing in order 1995 to 2001. Especially, this increasing tendency in variation in birth weight by social class was shown after economic crisis, 1998.

• 한국인구학
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• 제7권1호
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• pp.39-77
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• 1984

It has been well known that the family pjanning programme has a great deal with declining fertility in Korea. The present study was aimed to measure the impact of family planning program me on fertility level. The specific objectives are to overview the demographic changes ncluding fertility declining and to calculate actual number of birth averted during the last 20 years. The data used for the present study was collected from various sources such as service statistics of the government, survey and research reports, and other related papers. The tool used for calculation of birth prevention was "Standard Couple Years of Protection (SCYP) Method" developed by M Gorosh. The major findings are summarized as follows ; Total of family planning acceptors from 1962 to 1982 was 9,556,153. On the basis of this data, total of averted births was calculated for eachcontraceptive Method ; 1.Oral pills, total number of acceptors from 1968 to 1982 was 2.347,259. Estimated number of birth averted was 272 ,303 .70 and the Coefficient of births prevention per acceptor turned out to be 0.114 2.Condoms, total number of birth acceptors from 1962 to 1982 was 2,874,216. Estimated number of birth averted was 220,495.30 and the coefficient of births prevention per acceptor turned out to be 0.077. 3.IUD, total number of acceptors from 1962 to 1982 was 5,101 .650. Estimated number of birth averted was 1,377,584.76 and the coefficient of births prevention per acceptor turned out to be 0.270. 4.Vasectomy, total number of acceptors from 1962 to 1982 was 556,508. Estimated number of birth averted was 626 ,128 .80 and the coefficient of births prevention per acceptor turned out to be 1.125. 5.Tubaligation total number of birth acceptors from 1972 to 1982 was 1 210,775. Estimated number of birth averted was 1 ,117 679.00 and thecoefficient of birtlts prevention per acceptor turned nut to be 0.923. 6.Abortion, total number of acceptors from 1973 to 1982 was 465,525. Estimated number of birth averted was 355 ,283 .60 and the coefficient of births prevention per acceptor turned out to be 0.763.

• 대한소아치과학회지
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• 제49권3호
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• pp.274-284
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• 2022

이 연구의 목적은 시계열 분석을 통하여 최근 10년(2010 - 2019)간의 광주광역시 출생아 수 추이와 전남대학교 치과병원 소아치과 내원 환자 수 추이를 분석하고 향후 1년을 예측하는 것이다. 출생아 수는 월별 반복과정을 보이면서 비안정적으로 하락하는 추세를 보였으며 1월에 출생아 수가 가장 많고 12월에 가장 적은 경향을 보였다. 2020년의 출생아 수가 평균 682명(595 - 782명, 95% CI)으로 예측되었으며 실제 출생아 수는 평균 610명이었다. 소아치과 내원 환자 수는 월별 반복과정을 보이면서 비교적 안정되어 있으며 8월에 내원 환자 수가 가장 많고 6월에 가장 적은 경향을 보였다. 2020년의 내원 환자 수가 평균 603명(505 - 701명, 95% CI)으로 예측되었으며 실제 내원 환자 수의 평균은 587명이었다. 출생아 수의 기록적인 감소에도 불구하고 소아치과에 내원한 환자의 수는 다소 증가할 것으로 예측되었다. COVID-19이라는 특수한 상황으로 인하여 실제 출생아 수와 내원 환자수가 예측치보다 다소 낮게 확인되었으나 예측 범위 내에 포함됨을 확인하였다. 시계열 분석 모형은 과거를 이해하고 미래를 예측하는 유용한 방법으로 소아치과 영역에서 저출산 시대를 대비하기 위한 기초 도구로써 유용하게 활용될 수 있을 것이다.

• 여성건강간호학회지
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• 제27권1호
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• pp.40-48
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• 2021

Purpose: This study compared maternal age at childbirth, the number of live births, and the weight of live births between Korean women and immigrant women using statistical data from the Republic of Korea for the period of 2008-2018. Methods: The analysis was conducted using data from the Microdata Integrated Service of Statistics Korea (https://mdis.kostat.go.kr/index.do). Results: Korean women and immigrant women showed a higher age at childbirth in 2018 than in 2008. The percentage of newborns of Korean women with a birth weight of less than 2.5 kg increased slightly for 3 consecutive years from 2016 to 2018, whereas for immigrant women, this percentage increased in 2017 compared to 2016 and then decreased again in 2018. Very low birth weight (less than 1.5 kg) became more common among immigrant women from 2016 to 2018. Birth at a gestational age of fewer than 37 weeks increased both among Korean and immigrant women from 2016 to 2018. In both groups, the percentage of women who had their first child within their first 2 years of marriage decreased from 2008 to 2018. Conclusion: Immigrant women had higher birth rates than Korean women, while both groups showed an increasing trend in preterm birth. Greater attention should be paid to the pregnancy and birth needs of immigrant women, and steps are needed to ensure health equity and access in order to prevent preterm births. It is also necessary to identify factors that affect preterm birth and birth of very low birth weight infants among immigrant women in the future.

• 대한수의학회지
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• 제52권2호
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• pp.141-146
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• 2012

Calving records of Holstein dairy cows from 2005 to 2010 comprising Goyang and Paju cities herd with 2,362 calving events representing 240 twin births were used to evaluate the effect of abomasal displacement and retained placenta after single or twin births on fertility. In retained placenta cows, the period of twin pregnancy (mean 270.5 days) was shorter than that of single pregnancy (mean 274.8 days), however first artificial insemination period (twin: mean 107.4 days, single: mean 92.0 days), non-pregnant period (twin: 154.8 days, single: 132.2 days), and number of insemination (twin: mean 2.00 times, single: mean 1.87 times) of twin pregnancy were increased as compared with single pregnancy. In abomasal displacement cows, first artificial insemination period (twin: mean 122.9 days, single: mean 106.0 days), non-pregnant period (twin: 172.4 days, single: 152.0 days), and number of insemination (twin: mean 2.16 times, single: mean 1.89 times) of twin pregnancy were increased as compared with single pregnancy. The prevalence of complication such as retained placenta, abomasal displacement with single or twin births increased first artificial insemination period, non-pregnant period, and number of insemination period.

• Journal of Preventive Medicine and Public Health
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• 제37권2호
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• pp.166-173
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• 2004

Objectives : Cervical cancer is the second most frequent cancer among women in Busan. The Pap smear test could have a significant effect on detecting cervical cancer, and enhancing their rate of use is an important strategy for reducing the incidence and mortality of cervical cancer. This study aimed to evaluate the factors associated with the past use of the Pap smear test in Korean women. Methods : A population-based survey was carried out in Busan between November 1999 and March 2000. 1,673 participants were randomly selected from 2,684 women in Busan, using a 2-stage cluster sampling method, and interviewed in their homes. Their socio-demographic characteristics, smoking, drinking, familial cancer history, Pap smear screening history, reproductive and menstrual factors, sexual habits and use of contraceptive methods data were collected by a trained interviewer using a questionnaire. The use of the screening test was defined by a self-report from the participants on how many times they had had a Pap smear test in their lifetime, and when they had received their latest examination. Results : Of the 1,673 respondents (62.3% response rate), 57.6% had had a Pap smear test during her life (mean number, 2.3). Among the health examination participants(1,064), 961(90.3%) reported having sexual experience and 70.9% of these had had a Pap smear test. In a multiple logistic regression analysis, statistically significant relationships were observed for age groups and the Pap smear test rate (odds ratio, OR for 35-44 years=2.45; OR for 45-54 years=3.41; OR for 55 years=2.60; reference, under 34 years). The married or cohabiting women were more likely to have used the Pap smear test than those separated or widowed (OR=1.73). Among the reproductive behavioral measures, the number of births (OR for 3 births=4.22; OR for 2 births=3.95; OR for 1 births=3.38; reference, 0 births) and husband's extra-marital affairs (OR=1.50) were associated with the rates of use of Pap smear tests. Conclusion : It appears that the most important contributing factors to cervical cancer screening were age, marital status and number of births. A positive association was also observed for the husband's extra-marital affairs. This study enabled us to systematically assess the relationship between Pap smear rates and risk factors for cervical cancer. It is hoped that this study will make a significant contribution to the accumulating scientific evidence on the identification of factors associated with cervical cancer screening in Korea.

• Journal of Preventive Medicine and Public Health
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• 제33권4호
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• pp.402-408
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• 2000

Objectives : To investigate possible seasonal patterns of pre-term birth in Korea. Methods : A total number of 2,669,357 single live births reported to the National Statistical Office from 1995 to 1998 were analyzed. Composite monthly cohorts of ongoing pregnancies were constructed for each month of the year and the probability of pre-term birth was estimated. Results : Increases in the probability of a pre-term birth occurred during winter for the birth of first child and during summer for the birth of second or later child. This seasonal variation was similar among groups divided by sex, residency, age of mother, and education of mother. Conclusions : These findings suggests that some environmental factors related to season may partially explain the incidence of premature births.

• Clinical and Experimental Pediatrics
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• 제53권10호
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• pp.880-885
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• 2010

Purpose: The recent trends of multiple births (MBs) conceived by assisted reproductive technology (ART) in Korea were analyzed as well as the relationship with maternal age, especially advanced maternal age. Methods: Data were obtained from the Korean Statistical Information Service and annual ART reports from the ART committee of the Korean Society of Obstetrics and Gynecology. Results: MBs increased from the early 1990s; there was a 275% increase by 2008. The number of total live births was 448,153 and MBs accounted for 10,767; the MB rate was 24.0% in 2006. Among 2,326 deliveries conceived by ART, multiple deliveries accounted for 786 (33.8%). The total number of live births with ART was 3,125 and 1,585 (50.7%) of them were MBs. During 2006, 14.7% of the entire MBs in Korea were associated with ART. The proportion of women of advanced maternal age was much higher in the ART group than in the total live birth group. Conclusion: MBs in women of advanced maternal age have been increasing in Korea with the use of ART. The results of this study showed that ART was a significant factor associated with the increase in MBs in Korea.

• 응용통계연구
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• 제32권4호
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• pp.463-483
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• 2019

2000년 이후 우리나라 합계출산율은 일본, 독일, 프랑스처럼 출산율이 상승이나 감소기조에 들어서면 쉽게 변하지 않는 비가역적인 상수형태를 보이는 것과는 다른 양상을 보인다. 또한 2005년 1.08명 최저점에서 서서히 증가해 2015년 1.23명을 보이다가 2016년 1.17명, 2017년 1.05명, 2018년 0.98명으로 급락하고 있다. 이는 마치 경기침체의 더블딥(double dip)과 유사한 형태를 보인다. 본 연구는 이러한 TFR 증감 요인을 규명하기 위해 먼저 TFR에 영향력이 높은 출생아수 추이와 예측, TFR 분해법으로 분해되는 유배우율과 유배우출산율의 추이를 살펴본다. 그리고 이들 변화가 TFR 증감 변화에 어떤 영향력을 나타내는지 살펴보았다. 분석결과 출생아수는 2018년 약 32-33만 명, 2020년 30만 명, 2025년은 23-24만 명 수준을 보일 것으로 추정된다. 유배우율은 1981-2025년까지 지속적으로 감소, 유배우출산율은 2002년 이전까지 감소를 보이다가 2003-2016년 증가추세를 보인후 2017-2025년까지 감소추세로 이어질 것으로 예측되었다. 끝으로 출생아수, 출산율 분해와 통계적 모형으로 살펴본 TFR 향후 추이는 2018년 0.98명, 2020년 0.93-1.11명, 2025년에는 0.76-1.08명으로 분석되었다.