• Journal of Korean Academy of Nursing
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• v.42 no.4
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• pp.477-485
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• 2012

Purpose: This study was done to evaluate the effects of antenatal depression on birth outcomes. Methods: The participants were 255 pregnant women who were followed in a prospective study. Of these, 197 cases were examined included birth weight, Apgar scores at 5 minute, premature contraction, complication of labor, delivery types and laboratory data. Descriptive statistics, ANOVA, Chi square test of linear by linear association, Kruskal Wallis test, Relative Risk, univariate and adjusted multiple logistic regression were used for data analysis with SPSS/Win. Results: Level of antenatal depression was associated with low birth weight ($x^2$=7.69, p=.010). High risk pregnancy was a predictor of low birth weight (OR=6.98 [1.21-40.30]) and baby's weight (OR=2.12, [1.05-4.28]). Prepregnancy body mass index (BMI) was a predictor of complications in labor (OR=3.59, [1.03-12.48]). But there were no significant effects of antenatal depression on other birth outcomes. Conclusion: The results of this study indicate that women with antenatal depression, high risk pregnancy, prepregnancy $BMI{\geq}23kg/M^2$ should be monitored and managed to ensure favorable birth outcomes.

• Korean Journal of Food Science and Technology
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• v.7 no.3
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• pp.120-127
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• 1975

Despite the extensive study of protein effect to man and domestic animals, protein effect of sunflower seed oil cake to the growth and value of erythrocyte in rats is still remained to be investigated. This study is to investigate the effect of protein of sunflower seed oil cake to the rat growth and value of erythrocyte as well as the liver weight, heart, kidneys and spleen of rats. Sixty to seventy-days-old, male Sprague-Dawley rats weighing 50-60g, were used in this experiment and 36 rats allotted to 4 groups: standard, 30% cake, 20% cake and low protein. The standard group was fed for 7 weeks on the ration supplemented with 17% casein, 30% and 20% cake groups with sunflower seed oil cake by 30% and 20%, respectively, and low protein group without any supplementation. To observe value of erythrocyte, blood was taken from heart. Value of erythrocyte, hemoglobin and hematocrit value were determined by usual method and oxygen consumption by the method of Watts and Gourley. The result of this experiment suggests that it is recommendable to supplement deficient amino acids in animal.

• Journal of Preventive Medicine and Public Health
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• v.17 no.1
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• pp.193-202
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• 1984

Clinical and statistical observations were performed on 1,930 cases of pregnant women who were admitted for delivery in the Department of Obstetrics, Kyung Hee University Hospital during 1 year (1982) and on 1,961 cases of neonates who were born to the former. The results were obtained as follows: 1. Concerning maternal age distribution, the commonest age group was that of $25{\sim}29$ and the proportion of the age group $20{\sim}29$ was 82.4% of all. 2. Concerning obstetrical history, the proportion of the women who had no prior experience of delivery nor abortion was the highest, 45.5%. 3. Concerning abortion history, 36.1% of the women had experienced it and the mean number was 1.8. 4. Type of delivery was as follows: Spontaneous delivery; 58.1%, Vacuum extracted delivery; 22.4%, Cesarean section; 18:8%, Breech delivery; 0.7%. 5. Gestational period distribution of the neonates was as follows: Under 37 weeks (Preterm); 7.1%, Between 38 and 42 weeks (Term); 87.2%, More than 43 weeks (Postterm); 5.7%. 6. Sex ratio of male to female of the neonates was 1.03:1. 7. Birth weight distribution was as follows: Under 2,500gm.; 9.0%, Between 2,501 and 4,000 gm.; 85.5%, More than 4,001gm.; 5.5%. 8. The measured growth data of neonates were as follows: Body weight; 3.28kg. for male, 3.18kg. for female, Body height; 50.40cm for male, 49.77cm for female, Chest circumference; 32.54cm for male. 32.17cm for female, Head circumference; 33.49cm for male, 33.11cm for female. 9. The mean values of Apgar score per 1 minute were 7.70 for male and 7.63 for female. 10. The incidence rate of neonatal jaundice was 50.0% and no difference in sex respectively, but more prevalent in preform baby. 11. The incidence rate of neonatal diseases was 8.9% and the commonest disease was neonatal infection (35.6%). 12. Concerning multiple pregnancy, ratio to single births was 1 : 64.3 and the sex ratio of male to female was 1 : 1.03. 13. The incidence rate of congenital anomaly was 2.4% and the commonest anomaly was digestive system anomaly (30.9%). 14. The neonatal mortality rate was 11.73 per 1,000 neonates, and the majority of neonatal deaths were in low birth weight and preform neonates (78.3%). 15. The causes of neonatal deaths in decreasing order of frequency were abnormal ventilation (39.1%), prematurity (30.4%), congenital anomaly (13.0%) and etc.

• Neonatal Medicine
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• v.17 no.1
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• pp.94-101
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• 2010

Purpose:In recent years, Korea has showed a steady increase in the frequency of teenage birth, while the overall birth rate has declined. As the teenage birth is known as a high risk pregnancy itself, we examined perinatal complications of teenage mothers and whose neonates in aspects of medical problem, and social status and support. Methods:We examined the perinatal characteristics of teenage mothers and whose babies, who were hospitalized at Korea University Ansan Hospital from January 2004 to July 2009 using medical records retrospectively. Twenty-seven teenage mothers and their 28 babies were enrolled in this study. Results:Teenage mothers were all unmarried and showed high rates of preterm labor, maternal anemia, and unexpected delivery. Among them, 11 (40.7%) were from families that were separated. Eleven mothers (40.7%) did not have any antenatal care. There were high rates of prematurity and low birth weight (60.7% and 64.3%, respectively). The complication included: respiratory distress syndrome, patent ductus arteriosus and necrotizing enterocolitis. Fourteen babies (51.9%) were not going to be brought up by their biological parents. Conclusion:Teenage pregnancy had high rates of preterm labor and associated complications, often caused by the lack of proper antenatal care. Babies from unmarried mothers were likely to be adopted and this could be a social burden. Therefore, to reduce unplanned teenage pregnancy and births, sex education and social supports should be provided to all teenagers.

• Journal of Preventive Medicine and Public Health
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• v.21 no.1 s.23
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• pp.10-20
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• 1988

This study was conducted to compare the maternal charactristics, and birth weight of infants delivered at five different categories of medical facility in Taegu to examine the risk level of pregnant women and children by the medical facility for delivery. The study population included 1,410 pregnant women who delivered a baby at one of nine medical facilities (3 university hospitals, 2 general hospitals, 2 private clinics, 1 midwife clinic, 1 MCH center) in Taegu in April, 1987(April and May, 1987 for K university hospital), Pregnant women were interviewed to ask the age and educational level of woman, payment of medical fee, birth order, delivery method. Birth weight of infant was obtained from medical record. Mean ages of the women delivering at the university hospitals(27.5 years) and at general hospitals(26.7 years) were higher than those at midwife clinic(25.4 years) and at MCH center(26.1 years). Also, mean years of school education were higher in women of university hospitals(12.7 years) and general hospitals (12.2 years) than in women of midwife clinic(9.2 years) and MCH center (9.3 years). The percentages of women covered by the medical insurance were far greater in the university hospitals(78.1%) and general hospitals(82.9%) than in private clinics(44.3%) , midwife clinic(29.1%) and MCH center (5.4%). Infants born at the MCH center were mostly the second birth (47.3%) while 56.0% to 61.7% of infants born at all the other medical facilities were the first birth more women delivering at the university hospitals had history of spontaneous abortion as well as still birth than the women delivering at the other medical facilities. The preform birth rate (11.4%) and low birthweight incidence rates(5.8-13.0%) in university hospitals were significantly higher than those of other medical facilities. Accordingly, c-section rates showed a wide variation among the medical facilities. Study findings revealed that most of women delivering at the university hospitals and general hospitals are in the middle of or upper socio-economic class and obstetrically high risk group regardless of socioeconomic class while the wome delivering at the midwife clinic and MCH center are low risk group of low socioeconomic class. Therefore, the data of a specific medical facility are highly limited in interpretation and can not be generalized.

• Journal of the Korean Society of Food Science and Nutrition
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• v.35 no.5
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• pp.572-582
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• 2006

This survey was conducted from June 2004 to August 2004, through questionnaires given to 432 women aged ranging from 20 to 50 years, who were living in the Seoul metropolitan area. The questionnaires were designed to determine the physique, level of obesity and dieting survey as well as to uncover which diets were in fashion and their satisfaction degree. Dieting-related knowledge and dieting side effects were also investigated. The results were as follows: In dieting survey, as the age increased, dieting for health reason (52.3%) increased, whereas that for aesthetic reasons (32.6%) decreased (p<0.05). The most effective methods of dieting were exercise (50.2%) and diet (45.0%) regimens. In regards to exercise frequency, 46.5% for none, 23.5% for 1-2 times a week, suggesting that most respondents do not practice exercise for dieting purposes (p<0.05). Major source for dieting was shown to be obtained from relative family or friends (31.7%), newspapers or magazines (29.3%) and internet (14.9%). As the age decreased, information from the latter increased, whereas that from TV program (21.2%) decreased (p<0.05). Reasons for excess weight were bad eating habits (39.6%), lack of exercise (38.3%), pregnancy and childbirth (10.6%). In fad dieting, while organic foods and aerobic exercises scored the highest satisfaction degree among diet and exercise regimens, on the other hand, sauna, steam baths and high temperature half-immersion baths scored the highest among surgery and other special therapies. As the age increased, the satisfaction degree for organic foods such as organic vegetable and high functional boiled cooked rice increased (p<0.05). As the age increased, scores on dieting-related knowledge decreased. Side effects of dieting included dizziness 06.2%) fatigue (15.1%) indigestion/constipation (11.1%) physical weakness 00.5%), loss of concentration (7.8%), dry skin (7.4%) loss of motivation (6.7%). The above results showed that attitude toward dieting among adult women varied with age and in light of the well-being trend, organic foods and aerobic exercises scored the highest satisfaction degree through all age.

• Neonatal Medicine
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• v.18 no.2
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• pp.182-188
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• 2011

Purpose: Recently in Korea, there have been significant improvements in neonatal mortality rate (NMR) and infant mortality rate (IMR). This study aimed to investigate the proportion of the NMR among IMR, with the goal of discerning the influence of improved NMR on the reduction of IMR in the last 5 years in Korea. Methods: All data were from Statistics Korea. Changes in the NMR percentage among IMR and the percentage of the death by the distribution of the birth weight and gestational were investigated. Results: The total birth rate decreased, but the total number of preterm and low birth weight infants increased. These was a large decrease in NMR and IMR. The proportion of NMR among INR exceeded 50%. Early NMR was higher than late NMR. Among the total infant death, the mortality of preterm and low birth weight infants was high. Conclusion: Between 2005 and 2009, the total birth has declined in Korea, but the frequency of low birth weight infants is trending upward. The improvements in NMR and IMR, and the downtrend of the NMR percentage in IMR, are encouraging. It seems that the continued decrease of mortality of preterm and LBWI is required for better improvements NMR and IMR in Korea. This result is expected to be used for the basic data to improve the management of the newborns in Korea.

• Journal of Korean Public Health Nursing
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• v.16 no.2
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• pp.315-324
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• 2002

Objectives : This study was conducted to explore the relating factors with the delivery of low-birth-weight infants in Pyungtaek city. Methods : A questionnaire survey was obtained from 51 mothers with low-birth-weight babies and 90 mothers with full-term normal babies from April to October in 2001. Questionnaire consisted of demographic characteristics, dietary habits including alcohol. drugging, and smoking, past and present disease, prenatal risk factors and prenatal check-up, and complications related to labor and delivery. Results : 1. In the low-birth-weight infants group, father's education level and mother's height were significantly lower, and proportion of old age mothers was significantly higher than those of the normal infant group. 2. Mothers with low-birth-weight infants experienced more premature rupture of membrane, placenta previa, ecclampsia, and twin pregnancy than mothers with normal infants. Gestational period of mothers with low-birth-weight infants was significantly shorter than that of mothers with normal infants. 3. No differences were found in eating habit, alcohol and drug ingestion, smoking, exposing to dangerous materials in two groups, but both groups were highly exposed to indirect smoking, although mothers rarely smoke. Conclusion : The findings of this study indicate that high risk group such as less educated, or older mothers need more prenatal health assessment and support from public health services. Addition to determine the risk factors related to the delivery of low-birth-weight infants, public health nurses pay more attention and develop efficient management system for vulnerable women and infants.

• Journal of health informatics and statistics
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• v.43 no.4
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• pp.255-266
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• 2018

Objectives: This study compared the risk of preterm birth and low birth weight between native-born and foreign-born women. Methods: By Using the birth registration data, every woman who gave birth between 2010 and 2016 in Korea was included in the analysis. Duration from marriage to pregnancy was measured by month and multiple socioeconomic and demographic characteristics were controlled. Preterm birth (<37 weeks) and low birth weight (<2.5 kg) were used for outcome variables. Descriptive statistics and logistic regression were used for data analysis with Stata. Results: The risks of preterm birth and low birth weight for native-born and foreign-born women differed according to the duration of marriage or birth order. For the first infant, foreign-born women were more likely to have pereterm birth or low birth weight than the native-born in the early stage of marriage but nativeborn women had higher risks than the foreign-born in the middle and later stage of marriage. For the second infant, foreign-born women were less likely to have pereterm birth or low birth weight than the native-born regardless of the duration of marriage. Conclusions: The results of this study demonstrates that the risk of preterm birth and low birth weight for foreign-born women is concentrated on the early stage of marriage. Institutional and cultural supports should be given to foreign-born women to help their early settlement in the Korean society.

• Journal of Environmental Health Sciences
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• v.33 no.4
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• pp.227-234
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• 2007

Recent epidemiologic studies show that gestational exposure to air pollution adversely affects pregnancy outcomes including low birth weight in preform birth. In this study, we evaluated the effect of air pollutants on LBW (low birth weight) on firstborn fetus throughout the gestational period using the birth cohort between 1999 and 2003 in Seoul. Using birth cohort data from the National Statistics Office of Korea we identified 288,346 firstborn births (excluded missing data on lack of information for birth weight and discordance between residential and certificated address from a total of 316,451) during 1999 to 2003 with complete covariate (gender, parity, date of birth, gestational age, parental age and educational level, maternal occupation etc.) and maternal residential history data. Our subjects were defined as more than 37 weeks and less than 44 weeks of completed gestation and we identified 5,457 persons (1.89%) by low birth weight (<2.5 kg) in this study. Using logistic regression, we estimated the risk of mean (entire pregnancy and trimester period) air pollution concentrations for CO, $O_3,\;PM_{10},\;NO_2\;and\;SO_2$. In terms of trimester-specific exposure, we found that some air pollutants exposure in each trimester would increase the risk for LBW. Results also showed that the effect size of air pollutants exposure during the first and third trimester is higher than during the second trimester. In all trimester, the estimated risk of LBW was 1.831 (95% CI=1.573-2.132) with unit increase for CO, 1.139 (95% CI=1.107-1.172) for 50, and 1.009 (95% CI=1.001-1.017) for $O_3$. Our results suggest that exposure during the gestation period to relatively low levels of some air pollutants may be associated with a reduction in birth weight on first-born fetus. These findings implicate the effective risk management strategies should be applied to minimize the public health impacts for pregnant women.