• Journal of Korean Home Economics Education Association
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• v.17 no.2
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• pp.145-158
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• 2005

The purposes of this study are to find out the differences of parent-adolescent communication patterns, family cohesion and adaptability according to socio-demographic variables, to estimate the differences of family cohesion and adaptability according to parent-adolescent communication variables and to offer the basic data that are needed to improve desirable parent-adolescent communication, family cohesion and adaptability. Results of these analysis can be summarized as follows. 1. Open communication with father was showed significant difference according to adolescent's birth order. Close communication with father was showed significant difference according to adolescent's sex, adolescent's birth order and family type. Open communication with mother was showed significant difference according to adolescent's sex. Close communication with mother was showed significant difference according to adolescent's sex and birth order. 2. Family cohesion was significantly different adolescent's sex and income level. And family adaptability was significantly different adolescent's set adolescent's birth order and income level. 3. Family cohesion was influenced by open communication with father, open communication with mother, income level and adolescent's sex. And family adaptability was influenced by open communication with father, open communication with mother, close communication with father, income level and adolescent's sex.

• Journal of Preventive Medicine and Public Health
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• v.22 no.2 s.26
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• pp.276-282
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• 1989

The objective of this study was to examine the impact of changes in maternal age and parity distribution on birth weight. The study population included 7,786 single live births in 1977 and 8,671 single live births in 1987 delivered at 9 medical facilities in Pusan. Data were obtained from the delivery record. The proportion of infants born to the mothers of 25-29 years increased from 56.475 in 1977 to 65.1% in 1987 and the proportion to the mothers of 30-34 years increased from 18.8% in 1977 to 21.6% in 1987. In the same period, the proportions of 1st and 2nd birth order were increased from 56.9% and 28.8% to 59.9% and 36.8%, respectively. The proportion of infants born to the age group of ${\leq}24\;and\;35{\leq}$ years were decreased in 1987. The proportion of births of the third or higher birth order was decreased from 14.2% in 1977 to 3.3% in 1987. Low birth weight (<2500gm) incidence rate was 5.3% in 1977 and it was decreased to 4.0% in 1987. It was estimated that changes in maternal age-parity distribution accounted for 10.7% of the decreased in low birth weight incidence rate. Rest of the change (89.3%) was attributed to the reduction of age-parity specific low birth weight incidence rate. Application of the direct adjustment method was considered to be an adequate tool for evaluating the impact of family planning on neonatal health.

• Journal of Preventive Medicine and Public Health
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• v.21 no.1 s.23
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• pp.70-81
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• 1988

To measure the birth registration rate and the validity of birth registration data in rural area, all of the 4,014 married women under 49 years of age who had not been sterilized in Gunwee county of Kyungpook province were followed by Myun health workers for 2 years from April 1, 1985 to March 31, 1987 and 766 births were detected. All of the birth registration records of Myun offices were reviewed on September 30, 1987 and 944 births which occurred within the above mentioned period were found. Actual birth date obtained by follow-up study were compared with the birth date on registration card. Among 766 births detected by follow-up study,576 births(75.2%) which were reported within 6 months after birth were ascertained on the official registration records and 96 births(12.5%) were not found on the records although mother stated that the birth was registered. The registration rate within legal due date was 61.3% among 576 births detected by follow-up study and also ascertained on the official records. The registration rate within legal due date was lower in mothers under 20 years of age and above 35 years and in mothers who had only primary education. It was decreased as the birth order increased. The registration rate was higher in births occurred from October to March than births occurred from April to September. All of the births of 7 neonatal deaths were not reported. The registered birth date was consistent with the actual birth date in 78.0%. Birth date on record was earlier than the actual birth date in 6.8% and later in 15.3%. The consistency rate was lower in mothers above 35 years of age(54.5%), and in infants of 4th birth order and above(56.3%). The rate was increased as the maternal education level increased. The rate of boys was higher than that of girls. A higher percentage(17.4%) of infants born in March was registered with earlier date than the actual birth date and most of these registered birth dates were lunar calendar date. This might be related with the age for entering the primary school. The study findings revealed that the birth registration rate within legal due date and accuracy of report have been increased in recent years, but the infant mortality rate derived from the birth registration seems to be very inaccurate. It is suggested to let the medical personnel who delivered the baby report the birth by mail directly to the current address of parent while infants delivered at home without professional attendant may comply with the present registration system.

• Clinical and Experimental Pediatrics
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• v.50 no.10
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• pp.954-958
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• 2007

Purpose : The purpose of this study was to identify factors influencing premature infants who are small for their gestational ago. Methods : The medical records of 1,010 premature infants of 26 to 35 weeks of gestational age born at Il-Sin Christian Hospital, Busan from January 2000 to August 2006 were reviewed. We collected data on gestational age, birth weight, infant gender, birth order, maternal age and previous abortion history and analyzed the factors influencing premature infants who were small for their gestational ago at birth. Results : In our study more female than male (P=0.042) in premature infants who were small for their gestational ago were born from mothers aged younger than 20 or older than 35 (P=0.041). But association between smallness for gestational age and birth order or maternal previous abortion history was statistically insignificant (P=0.228, P=0.129). Conclusion : Considering the association of birth weight and the survival rate of premature infants, it is thought that maternal age had an influence on the survival rate of premature infants. Social and political support to lower the teenager pregnancy and older pregnancy is expected to increase the survival rate of premature infants and the birth of healthy normal neonates.

• Journal of agricultural medicine and community health
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• v.37 no.4
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• pp.233-245
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• 2012

Objectives: Understanding the predictor of immunization status in childhood is critical issue to improve National Immunization Program (NIP). The aims of this study were to verify the status of up-to-date or complete immunization coverage and to investigate its related factors. Methods: As of 2005, according to local residence registry data, there were 2,188 children who aged 12 to 35 months in Nonsan city, Korea. We conducted household survey for aged 12 to 35 months children, using questionnaires to obtain data on the status of immunization such as BCG, DTaP (diphtheria, tetanus, and pertussis), Polio, and MMR (mump, measles, rubella). Finally 1,472 participated in the survey. The operating definitions used in this study were following; "Complete immunization rate" refers to the rate of children who received all immunization within recommended age intervals fully "on-time"; "The 4:3:1 series" means status of receiving the fourth diphtheria-tetanus-pertussis (4 DTP), the third Polio (3 Polio), and the first measles-mumps-rubella (1 MMR) doses. Multivariate logistic regression analyses were used to determine factors affecting complete vaccination coverage of children. Results: Immunization rates of vaccine based on the vaccination card were from 92.7% to 96.4% except 4th DTaP (79.3%). Complete immunization rate of Korea NIP was 74.0% and that of the 4:3:1 series was 77.1%. A parent as primary caregiver (OR 0.59, 95% CI 0.39-0.87 at 19-35 months of children's age) and first-born children (OR 1.79, 95% CI 1.05-3.03 at 24-35 months of children's age) were significantly related to complete immunization coverage of Korea NIP. And a parent as primary care giver (OR 0.58, 95% CI 0.38-0.88 at 19-35 months of children's age) and first-born children (OR 1.94, 95% CI 1.21-3.14 at 19-35 months, OR 2.23, 95% CI 1.27-3.91 at 24-35 months of children's age) were significantly related to complete immunization rate of 4:3:1 series. Conclusions: Government should take actions to increase complete immunization rate. In particular, intervention on the secondary caregiver and non-first-born children should be needed.

• Korea journal of population studies
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• v.29 no.2
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• pp.53-88
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• 2006

The major aim of this paper is to develop a hypothetical set of age-specific fertility rates which are logically derived and reasonably accurate in the projection of future population. The first procedure is to select a generalized log-gamma distribution model, which includes Coale-McNeil nuptiality model, in order to estimate and project a set of age-specific fertility rates by birth cohort and birth order. The second is to apply the log-gamma model with an empirical adjustment to the actual data to estimate and project the future fertility rates for relatively young birth cohorts who did not complete their reproductive career. This study reconstructs or translates a set of cohort age-specific fertility rates into a set of period age-specific fertility rates which must be hypothesized in order to establish the broader framework of future population projection. For example, the fertility at age 20 in the year of 2020 is the fertility at age 20 for the cohort born in 1990, while the fertility at age 21 in the year of 2020 is the fertility at 21 for the cohort born in 1989. In turn, once a set of age-specific fertility rates for the cohorts who were born up to the year of 2010, it is possible for one to establish an hypothetical set of period age-specific fertility rates which will be needed to project the future population until the year of 2055. The difference in the hypothetical system of age-specific fertility rates between this study and the 2005 special population projection comes from the fact that the fertility estimation/projection model used in this study was skillfully exploited to reflect better actual trend of fertility decline caused by rise in marriage age and increasing proportion of those who remain single until their end of reproduction. In this regard, this paper argues that the set of age-specific fertility rates derived from this study is more logical and reasonably accurate than the set of those used for the 2005 special projection. In the population projection, however, the fundamental issue of the hypothetical setting of age-specific fertility rates in relation to the fertility estimation/projection model is about how skillfully one can handle the period effects. It is not easy for one to completely cope with the problem of period effects except for the a minor period adjustment based on recent actual data, along with the given framework of a cohort-based fertility estimation/projection model.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.4 no.1
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• pp.124-132
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• 1993

We studied the clinical characteristics of 45 children with tic symptoms, and a comparison was made according to their birth order patterns. The results were as follows. Sex ration was 14:1 higher for boys. The eldest children were 46.7%, single children, 15.6%, the youngest children, 33.3%, and twins 4.4% of all Organicity was suggested in 37.8%, early developmental problems in 71.1%, and family problems were in 89.9%. Among the co-existing problems, ADHD 46.7%, OCD 17.7%, Separation anxiety disorder 24.4%, GAD or anxiety dreams 17.8%, somatization disorder and enuresis 13.3% each, stuttering 8.9%, and other conditions. Overall, 84.4% of the patients have one or more co-existing conditions other than tic symptoms. When compared according to birth order patterns, the most significant difference was the time of onset The youngests have more incidences around the entrance period for elementary school(p<0.01). Among the twins, the lower birth-weight child was the patient. Summing up these findings, we concluded there were significant environmental factors working on the manifestation of tic and tourette disorders.

• Korea journal of population studies
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• v.17 no.1
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• pp.87-114
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• 1994

1950년대부터 많은 개발도상국가들은 가족계획을 위주로 하는 인구제어정책을 추진하여 왔다. 특히 가부장제도를 중심으로하는 동아시아 국가들에 있어서는 남아선호관이 출산력 저하나 피임 실천율이 증대에 지대한 유해요인으로 일관해 왔다. Sheps(1963)는 실증적으로 2명의 아들을 갖기 위해서는 약 3.9명 정도의 자녀를 두어야 한다는 연구결과를 제시한바 있다. 이와 같은 남아선호관의 여파에도 불구하고 한국과 홍콩은 1980년대 증반에 이미 1.6명 수준의 저출산율을 이룩하였으며, 1970년대에 인구억제 정책을 시작한 중국도 2명 수준으로 저하되어 가족계획사업의 성공사례로 평가되어 왔다. 그러나 이들 국가들의 출산율은 지난 20-30년이라는 짧은 기간에 너무나 급진적으로 감소된 반면에 남아선호관의 상존으로 인한 성비(여자 100명당 남자수)의 불균형을 초래하게 되였다. 한 예로 한국의 경우 1960년도만 해도 6명 이상의 자녀를 출산하는 과정에서 1-2명의 아들을 둘 수 있는 확률은 매우 높았으나, 최근에는 출산율이 2명 이하로 저하되어 아들을 둘 수 있는 확률은 과거보다 3-4배 어려워졌기 때문에 인위적인 방법으로 아들을 두는 부모의 수가 증가하고 있다. 중국은 1970년대 중반기부터 강력히 추진되어온 소위 "한자녀 갖기 운동"으로 인하여 여아출산인 경우 영아살해 또는 출생의 미신고등 많은 사회적 물의를 야기하였고, 최근에는 초음파검사를통한 선택적 인공임신중절(태아가 여아인 경우)으 경우가 급격히 증가하고 있다. 우리 나라의 성비는 출산율이 급격히 감소된 1980년대 증반기부터 급격히 증가되었다. 즉 인구전체에 대한 성비는 1980년의 103.9명에서 1985년에 110명으로 증가하였고ㅡ 1990년 116.9명으로 증가되었다. 성비는 자녀의 수가 적을수록 높아지는 추세이다. 1991년 조사에서 출산을 종료한 부인의 경우 1자녀의 성비는 무려 206명이나 되고 있다. 이와 같은 결과는 한자녀를 원하는 부인이 아들을 둔 경우 1자녀에서 조산을 결심하기 때문인 것이다. 통계청 자료에 의하면 성비는 무엇보다도 자녀의 출산순위와 밀접하다. 1991년 출생신고자료의 경우 첫아이의 출생시 성비는 106.1명이고, 둘째아이가 112.8명이나, 셋째아이는 184.7명으로 크게 증가하고 넷째 이상의 경우는 212.3명이나 된다. 동일한 출산순위라도 이미 두고 있는 자녀의 성에 따라서 많은 차이를 보인다. 1991년도 3번째 출산의 경우 딸만 2명을 두고 있는 자녀의 성에 아들만 2명 또는 아들과 딸을 각각 1명씩 두고 있는 경우에 비해 높은 성비를 보이고 있다. 자녀를 출산하는데 있어서 처음에는 아들ㅇ르 기다리지만 딸의 수가 증가함에 따라 적극적으로 아들을 낳고자 하는 노력을 지속하게 됨을 알 수 있다. 이는 즉 임신한 자녀의 성이 딸로 판명되면 인공임신중절을 통해 임신을 종결시키고 있음을 의미한다. 최근 한국보건사회연구원에서 수행한 연구결과에 의하면 이미 출생한 자녀의 성구성은 임신결과를 결정하는 가장 중요한 변수로 부각되고 있다. 즉 임신이 인공임신중절로 귀착되는 확률은 부모가 이미 아들을 두고 있는 경우에 일관성 있게 증가되고 있음을 보이고 있다. 따라서 남아선호관은 임신결과를 결정할뿐 아니라 선택절 인공임신중절에 의한 성비의 불균형을 초래하는 주요 변수로써 할거되었다. 특히 피임실천이 보편화되고 선택적 인공임신중절의 이용이 손쉬운 현대사회에 있어서는 남아선호관이 출산력 저하에 저해요인으로서가 아니라, 인위적이던 자연적이던 간에 아들만 두면 단산하는 현행의 출산풍토하에서는 남아선호관이 오히려 출산력저하에 결정적으로 작용하고 있다고 하겠다. 태아의 성 판별을 통한 선택적 인공임신중절의 건수는 1990년 한해에 약 20,000건 정도가 되고, 1986-1990년 사이에 총 80,000건으로 추정된다. 이 수치는 출생한 여아수의 5%에 해당한다. 현재 출생시 성비의 불균형은 연간 총출생수의 10% 미만에 불과한 3번째 이상의 출산에서 발생되고 있기 때문에 인구학적인 측면에서는 큰 문제가 아니다. 그러나 앞으로 출산율의 감소와 더불어 선택적 인공임신중절이 년간 출생수의 90% 이상을 차지하고 있는 둘째, 첫째출산순위로 확산된다면 성비의 불균형은 급진적으로 가속화되어 전통적 결혼관습의 재연등 인간의 생태계를 파괴하는 새로운 차원에서의 사회인구학적인 문제가 야기될 것이다. 결론적으로 성비의 불균형을 초래하는 근본적인 원인은 우리 나라으 전통적인 의식구조인 남아선호관의 상종과 최신의 의료기술에 의한 선택적 인공임신중절에 기인된 것이기 때문에 이를 시정하기 위한 제반 사회제도적 극복정책은 지속적으로 강화되어야 할 것이다.되어야 할 것이다.

• Korean Journal of Child Studies
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• v.14 no.2
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• pp.35-47
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• 1993

The purpose of this study was to examine children's sociability as a function of sex of child, number and sex of sibling, and birth order. Children's responses were compared with mothers' responses on social participation and interpersonal adjustment. Subjects were 506 4th and 5th grade children and their mothers. Results showed that mothers' perceptions of their child's sociability were different from those of the children. 'Number of sibling' differences between only children and others were found, with onlies being most likely to show lower scores in interpersonal adjustment. Sex differences in sociability were clearly demonstrated by both children and mothers; that is, boy's interpersonal adjustment scores were lower than girls' scores. Two-way ANOVA data revealed that second-born boys and first-born girls were most likely to obtain higher scores. For siblings, elder sisters showed the highest interpersonal adjustment scores, regardless of sex of younger sibling.

• Korean Journal of Childcare and Education
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• v.9 no.6
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• pp.369-389
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• 2013

The main purposes of this study were to analyze the moderating effect of parenting knowledge in the relationship between socio-demographic factors and parenting style. This study was conducted with the data from 'Panel Study Korean Children(2009).' Among the original data, a sample of 1,637 mothers with infants ranged from 13 to 18 months old was selected. The results of this study were as follows. First, there were significant differences in child's birth-order, mother's education level, and monthly family income. Second, there was a statistically significant difference in the parenting style of mothers in their parenting knowledge. That is, the mother with a high score in parenting knowledge reported more positive parenting style. Lastly, the interaction effects between socio-demographic variables and parenting knowledge on parenting style were statistically significant only with the variables such as child's birth-order and mother's education level. The mothers who cared for their first child and got a high score in parenting knowledge showed the most desirable parenting style, and the mothers whose educational level was under high school graduation and parenting knowledge score was low reported the lowest score in parenting style. These results suggest parenting knowledge should be subject-specifically provided as the differences in socio-demographic variables.