• 가정과삶의질연구
• /
• 제23권2호
• /
• pp.137-148
• /
• 2005

This study compared one-child households' economic structures between those who determined not to have more children and those who have a birth plan. This study examined the demographic characteristics and economic variables such as income, consumption expenditures, assets. debt, and a subjective evaluation of future economic status. Especially, it compared the effects of socioeconomic variables on expenditures on a child between low-fertility and birth-planned households. From a questionnaire completed by a husband or wife of one-child households, 154 low-fertility households and 201 birth-planned households were obtained. A t-test, chi-square test, multiple regression analysis and a dummy variable interaction technique were used. The findings of this study are as follows: First, low-fertility households were older, had higher income, and had more educated, employed wives. Their marital duration was longer, and their child was older than those of birth-planned households. Second, low-fertility households had higher consumption expenditures than did birth-planned households. Especially, expenditures of apparel and shoes, health care, education, and entertainment were significantly higher for low-fertility households. Also, low-fertility households spent more than did birth-planned households on a child. However, low-fertility households had significantly more debt than did their counterparts, and their expectation level of future economic status were lower than that of birth-planned households. Third, the effects of socioeconomic variables on expenditures on a child were different between low-fertility and birth-planned households. Age, education level, husband's occupation, wife's employment status, income, net asset, and subjective evaluation of future economic status showed significant differences. Income elasticity of expenditure on a child was significantly higher for low-fertility households than their counterparts.

• Toxicological Research
• /
• 제20권3호
• /
• pp.187-193
• /
• 2004

This study aimed to determine the association of maternal oxidative stress and adverse pregnancy outcome with serum vitamin C concentration and a myeloperoxidase (MPO) genetic polymorphism during pregnancy. We investigated 450 pregnant women who visited Ewha Womans University Hospital for prenatal care during gestational weeks 24～28. During the second trimester, we measured serum vitamin C levels and urinary 8-hydroxyde-2'-deoxyguanosine (8-OHdG) and malondialdehyde (MDA) as an oxidative stress biomarker. We determined the presence of a maternal MPO polymorphism (G-to-A substitution at nucleotide 463) using a PCR-RFLP assay. We compared the level of oxidative stress and birth weight with the vitamin C concentration and the presence of the MPO polymorphism. The mean level of maternal oxidative stress tended to be higher and the birth weight lower for MPO type A/A than for types A/G and G/G. Vitamin C levels above the 75 percentiles were associated with reduced concentrations of urinary MDA and 8-OHdG but increased birth weight. Our data demonstrate that oxidative stress and neonatal birth weight are associated with the MPO genetic polymorphism, with the association modified by the maternal vita-min C levels.

• Pediatric Infection and Vaccine
• /
• 제7권2호
• /
• pp.245-249
• /
• 2000

저자들은 재태기간 26주에 조기 진통으로 분만 후 사망한 초극소 저출생 체중아에서 L. monocytogenes에 의한 패혈증과 이에 의한 사망을 관찰하였기에 이를 문헌 고찰과 함께 보고하는 바이다.

• Journal of Preventive Medicine and Public Health
• /
• 제20권2호
• /
• pp.322-330
• /
• 1987

출생시 체중변화의 양상과 산모의 연령 및 출산순위와의 관계를 알아보기 위하여 1977년 1월부터 1986년 12월까지 부산시내 1개 종합병원에서 총 14,346건의 분만 가운데 20주이후에 출생한 단태아 13,634명을 대상으로 산실의 분만대장에서 신생아의 출생순위분포, 산모의 연령분포, 신생아의 체중분포와 평균체중, 산모의 연령과 출산순위에 따른 저 체중아와 과체중아의 출생을, 유산경험율과 사산율을 조사하였다. 신생아의 평균체중은 1979년에는 남아 3074gm, 여아 2985gm에서 1986년에는 남아 3266gm, 여아 3210gm 으로 증가하였고, 저체중아의 발생율은 1977년 7.2%에서 점차 증가하여 1980년에는 10.4%였으나 그후 점점 감소하여 1986년에는 6.5%였다. 과체중아의 발생율은 2,9%에서 4.6%사이로 평균 3.9%였으며 특별한 변화 양상은 볼 수 없었다. 유산을 경험 한 산모의 비율은 1979년에 51.6%에서 1986년에는 45.1%로 감소하였고, 사산율도 1977년에는 2.6%에서 1986년에는 1.5%로 감소했다. 이와같은 변화에는 가족계획 실천율의 증가와 결혼연령의 상승으로 $25{\sim}34$세사이 산모의 1과 2순위 출생아가 차지하는 비율이 증가한 것이 크게 영향을 미친 것으로 생각되며, 과체중아의 비율은 늘지 않고 오히려 저체중아의 출생율은 감소되어 전체적으로 신생아의 건강이 향상되고 있는 것으로 나타났다.

• 가정과삶의질연구
• /
• 제23권3호
• /
• pp.25-33
• /
• 2005

This study examines socio-demographic characteristics of married couples and their desire for a second child. Questionnaires were completed by 355 married men and women who have only one child currently. The participants were classified into four groups by their desire, or a lack thereof, for a second child. Group I consisted of married people who wanted to have another child, and whose spouse wanted the same. Members of Group II were in a marriage where only the wife wanted to have another child. Members of Group III were in a marriage where only the husband wanted a second child. Group IV consisted of participants who did not want another child, and whose spouse agreed with thor The research questions were (1) how different those four groups are in terms of socio-demographic characteristics, (2) what are the reasons to stop having children and to have another child, and (3) what are the perceptions of the current low fertility rate in Korea, and the policies designed to increase birth rata The results indicate that wife' age, husband's educational level, expectant level of household economy, age at marriage, marriage duration and the time length between marriage and birth of the first child were significantly different among the four groups. The reasons to stop having children were expected constraint of privacy and time, physical and psychological burden and economic pressure. The most pronounced reason for wanting another child was the desire to give their first child a sibling. Group III had more serious disagreement about having another child than did Group II. There were significant differences among the four groups in the perceptions of possible consequences of the low birth rate. These perceptions included: undermined competitiveness of the nation and weakened family ties.

• ETRI Journal
• /
• 제38권5호
• /
• pp.1019-1029
• /
• 2016

The probability hypothesis density (PHD) filter is an effective means to track multiple targets in that it avoids explicit data associations between the measurements and targets. However, the target birth intensity as a prior is assumed to be known before tracking in a traditional target-tracking algorithm; otherwise, the performance of a conventional PHD filter will decline sharply. Aiming at this problem, a novel target birth intensity scheme and an improved measurement-driven scheme are incorporated into the PHD filter. The target birth intensity estimation scheme, composed of both PHD pre-filter technology and a target velocity extent method, is introduced to recursively estimate the target birth intensity by using the latest measurements at each time step. Second, based on the improved measurement-driven scheme, the measurement set at each time step is divided into the survival target measurement set, birth target measurement set, and clutter set, and meanwhile, the survival and birth target measurement sets are used to update the survival and birth targets, respectively. Lastly, a Gaussian mixture implementation of the PHD filter is presented under a linear Gaussian model assumption. The results of numerical experiments demonstrate that the proposed approach can achieve a better performance in tracking systems with an unknown newborn target intensity.

• 대한간호학회지
• /
• 제47권3호
• /
• pp.357-366
• /
• 2017

Purpose: The aim of this study was to determine the influence of various factors on preterm labor symptoms (PLS) and preterm birth (PB). Methods: This prospective cohort study included 193 women in the second stage of pregnancy. Multiple characteristics including body mass index (BMI), smoking, and pregnancy complications were collected through a self-report questionnaire. Pregnancy stress and PLS were each measured with a related scale. Cervical length and birth outcome were evaluated from medical charts. Multiple regression was used to predict PLS and logistic regression was used to predict PB. Results: Multiple regression showed smoking experience, pregnancy complications and pregnancy specific stress were predictors of PLS and accounted for 19.2% of the total variation. Logistic regression showed predictors of PB to be twins (OR=13.68, CI=3.72~50.33, p<.001), shorter cervix (<25mm) (OR=5.63, CI=1.29~24.54, p<.05), BMI >25 ($kg/m^2$) (OR=3.50, CI=1.35~9.04, p<.01) and a previous PB (OR=4.15, CI=1.07~16.03, p<.05). Conclusion: The results of this study show that the multiple factors affect stage II pregnant women can result in PLS or PB. And preterm labor may predict PB. These findings highlight differences in predicting variables for pretrm labor and for PB. Future research is needed to develop a screening tool to predict the risk of preterm birth in pregnant women.

• 대한가정학회지
• /
• 제32권4호
• /
• pp.57-71
• /
• 1994

The purpose of this research was to study the variables related to the stress and to provide the way of establishing better relationship between aged parents and adult offsprings and the way of effective care-giving. In order to achieve this purpose a survey was conducted by interview using questionaire. The collected data were analyzed by using frequency percentage mean standard deviation factor analysis Pearson's correlation analysis, ANOVA, and stepwise regression analysis. The results of this research were as follows: First The total points of daughter-in-laws' caregicing stress was 38.5 and daughter's caregiving stress was 27.3. Second There were meaningful differences according to living arrangement daughters-in-law age, old mothers' health status. And there were significant. interaction effects among variables of living arrangement and daughters-in-law' age, living arrangement and birth order birth order and old mothers' health status. living arrangement and daughters-in-law' age and old mothers' health status. Third There were meaningful differences according to living arrangement daughter's age. And there were significant interaction effects among variables of living arrangement and daughter's age, daughter's age and birth order, living arrangement and daughter's age and old mothers' health status, living arrangement and birth order and old mothers' health status. Fourth Among daughters-in-law' variables living arrangement age, old mothers' health status have influence on the care-giving stress. Among daughter's variables living arrangement, age, birth order have influence on the care-giving stress.

• Asian-Australasian Journal of Animal Sciences
• /
• 제14권7호
• /
• pp.899-904
• /
• 2001

A field trial on selection for increased live weight in Black Bengal (BB) goat was conducted over two generations. Parents of both sexes were selected (mass selection) based on mature body weight criteria set against age. A parallel randomly mated line was maintained to compare the response (R) of selection at birth. 3, 6, 9 and 12 months of age in both generations. Lactation yield (LY), average per day yield (APDY) and lactation length (LL) were evaluated in the selected line in comparison to randombreds as a result of correlated response. Live weights were significantly improved at onward bir:th in first generation and only at birth in second generation. Improvements (%) in live weight at 3, 6. 9 and 12 months in first generation were 17.6, 18.4, 16.6, and 12.0 at birth in second generation. Significant correlated R were found in LY and APDY. Results suggest that there may be a positive relationship between live weight and lactational traits in BB goats of Bangladesh. It was also concluded that such a field scheme can be effectively used for genetic improvement of goats in subsistence farming, at least for short term gain.

• Child Health Nursing Research
• /
• 제30권2호
• /
• pp.118-128
• /
• 2024

Purpose: This study aimed to examine the health concerns of parents regarding their premature infants and to identify changes in these concerns during perinatal period and after discharge. Methods: This was a retrospective study performed at a single tertiary center that enrolled 119 premature infants who were discharged from the neonatal intensive care unit (NICU) and visited the outpatient pediatrics department between December 2018 and October 2021. Data on the concerns of 176 parents regarding enrolled premature infants' health from before birth to 1 week after NICU discharge were obtained from outpatient records. The t test and with the chi-squared test were used to analyze the data for this study. Results: The consistently greatest focus of parents' health concerns was the respiratory system. The second focus of parents' health concerns before discharge was the central nervous system. However, during the first week after NICU discharge, the gastrointestinal system was the second-most frequent focus of parents' health concerns among parents of infants without diseases related to prematurity and infants with older gestational ages. Conclusion: The results of this study offer insights into the health concerns among parents of premature infants. Parental health concerns about premature infants vary over time, from before birth to post-discharge, necessitating supportive interventions to enhance parental understanding of their child's health status.