• Korean Parent-Child Health Journal
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• v.12 no.1
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• pp.15-24
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• 2009

Purpose: This study was conducted to investigate the performance level of breastfeeding health behaviors and general characteristics of breastfeeding mothers related to breastfeeding health behaviors. Method: 123 breastfeeding mothers whose infants are between 5-7 months of age participated in this study. Data was collected during a Breastfeeding Infant Contest held in September 2007 in Changwon-si, Gyeongsangnam-do. Health behaviors related to breastfeeding were measured in Likert scale 5 including 20 questions developed by Park et al., and the collected data was analyzed with descriptive statistics, T-test and ANOVA using SPSS program. Result: The performance level on breastfeeding health behaviors scored $3.73{\pm}.35$ on average (5.0 in full score). The score showed that there were significant statistical differences only in the knowledge of breastfeeding between groups. The score of 'enough' knowledge group was higher than that of 'a little short' knowledge group (t=2.071, p=0.045). Conclusion: The performance level on breastfeeding health behaviors was related to the knowledge of breastfeeding in breastfeeding mothers. Therefore, it is necessary to enhance education on breastfeeding health behaviors for mothers of newborns in the hospital and to have a reevaluation process on their performance at the time of revisiting.

• Environmental Analysis Health and Toxicology
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• v.31
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• pp.23.1-23.6
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• 2016

Objectives A stable follow-up participation rate is a very important factor for validity in a cohort study. This study analyzed the factors that affect the participation rate at one hospital-based birth cohort in South Korean. Methods The participants were recruited from the Mothers' and Children's Environmental Health study between 2006 and 2010. The analysis targeted 1751 mothers who participated in a birth cohort. We conducted analyses of general characteristics during pregnancy and those of infants at birth that affect the participation rate of the 6-month follow-up survey. Results The participation rate for the 6-month follow-up survey was 60.4%. The participation rate in the follow-up of the subsequent period decreased within a 5% to 10% range compared to the number of subjects. The participation rate of premature infants was 16.9% lower than that of a full-term infant (52.6% vs. 69.5%). Analysis showed a 16.7% difference between the participation rate of low-birthweight infants in follow-ups (53.7%) and the participation rate of infants with normal weight (70.4%). The participation rate of mothers who were employed during pregnancy was significantly lower for the 6-month follow-up compared to the participation rate of mothers who were unemployed during pregnancy. Conclusions In this study, factors such as premature birth, low-birthweight, and the employment status of the mother during pregnancy affected the participation rate of the follow-up survey for the birth cohort at six months. A specific strategy is needed to encourage survey participation for the high risk groups in the follow-ups.

• Korean Journal of Community Nutrition
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• v.6 no.2
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• pp.182-191
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• 2001

Anemia in women during pregnancy and after delivery has been known to affect the mother, the fetus, and the infant's growth and health status. Studies examining, changes in iron and folate status associated with anemia during pregnancy and during pregnancy, and those supplements are stopped after postpartum. However, the effects of those have not been clearly determined in pregnant and lactating Korea women. Therefore, this study was performed to determine the changes in maternal iron and folate status during pregnancy and six months after delivery longitudinally in six pregnant women who consumed supplements from 20 wk to delivery. We concluded that the iron status deteriorated during pregnancy and especially was weak in the third trimester, but had a tendency to recovery after delivery. On the other hand, the folate status deteriorated in the first and second trimester and was good in the third trimester, but had a tendency to decrease after delivery. These results suggested that the iron status was not improved despite consuming total iron supplements of 50 mg/day through diets and supplements during the second half of the pregnancy. On the other hand, the folate status improved at the end of pregnancy by consuming folate supplements of a total of 800 mg/day through diets and supplements. However, folate status was poor in the first half of the pregnancy, and the tendency of folate status to decrease during postpartum was advanced. At the point in which iron and therefore supplementation is essential. However, the effects of supplement intake time and intake dosage need to be verified and the nutritional status changes of postpartum women should be carefully monitored.

• Korean Journal of Community Nutrition
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• v.1 no.2
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• pp.201-214
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• 1996

This study was aimed at evaluating the lipid status of 122 pregnant women, who were attending peripheral community clinics in low-income areas and were vulnerable in terms of public health, by anthropometric measurements, estimating dietary intakes and analyzing serum lipids content and fatty acids composition. Regarding the skinfold thickness, it has increased more significantly in suprailliac than in triceps, biceps, subscapular, which means body fat has been accumulated in central parts more than in distal parts of the pregnants. It is found that intakes of energy, protein, lipid and carbohydrate are desirable while calcium, zinc and copper are low and sodium is excessive. Regarding dietary fat intake, the energy $\%$ of fat was within the same range as RDA(20%) for adults, but energy $\%$ intake from each fatty acid was usually low, especially energy % of monoun-saturated fatty acid intake was below RDA for adult women. And intake ratio of $\omega$6$\omega$3 fatty acids was desirable. Accordingly, it is thought that dietary fat intake was balanced in quality. Serum lipids concentrations were increased with the length of pregnancy and were higher as compared with non-pregnant women. Polyunsaturated fatty acids, especially $\omega$6 fatty acids, have gradually decreased with the length of pregnancy. Serum lipids content and fatty acids composition were not greatly influenced by dietary fat but serum free fatty acid level was negatively related to energy, carbohydrate, fatty acids and cholesterol intake. On the basis of the above results, it can be predicted that lipid metabolism for mother and fetus is changed by pregnant status and multilateral research on maternal nutrition in terms of areas and income levels will have to be made. (Korean J Community Nutrition 1(2) : 201-214, 1996)

• Journal of the Korean Society of Food Culture
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• v.11 no.2
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• pp.217-228
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• 1996

Infanthood is a crucial period when mental and emotional developments take place along with physical growth. Adequate supply of nutrition is essential during this period and there is an urgent need for proper education and guidance on balanced nutrition. Therefore, this study was designed to assess to current status of lactation and to investigate mothers' perspectives on human milk and formular milk. As random samples for this study, a total of 352 mothers having infant under the age of 4 were surveyed. 27.3% of mother surveyed were breast-feeding, 38.0% were formula-feeding and 34.7% were mixed-feeding. According to the result of this study, the percentage of breast feeding was on the decrease, while the dependence on formular milk was on the rise. The main reason of formula-feeding was insufficient secretion of human milk on mothers part. The major factors that affect to select feeding method were employment status, degree of education, family income and age. Also, the interviewees desired the product fortified with special ingredients that are hot contained in formular milk currently available in the market. The most concerned problem of formula milk was indigestion and the interviewees wanted the formular milk to be improved digestibility.

• Journal of Home Health Care Nursing
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• v.9 no.1
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• pp.27-36
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• 2002

The purpose of this study was to investigate the reason of interruption and the knowledge of breastfeeding. The samples of 117 mothers who have the babies between age from 1 month to 12 months were selected from one university hospital and one public health care center in J City. The data were collected with the questionnaire during the period from the January. 5. 2002 through January. 30. 2002. Analysis was done by using frequency. percentage. t-test. ANOVA. The results of this study can be summarized as follows. 1. The comparison of the method of feeding by general characteristics. income state(p= .019), rearing supporters(p=.026) and infant age(p=.03) have shown significant difference as the variables affecting breastfeeding practice rate. Breastfeeding rate were 24.8%. mixed- feeding type, 14.5%. milkfeeding type. 60.7%. 2. The major reason which breastfeeding be done was 'for health of baby'. In the period of breastfeeding, a large number of mothers answered' up to. 6 months'. The major reason of breasttfeeding interruption was 'insufficient quantity of breastmilk'. 3. The mean of knowledge on breastfeeding by feeding patterns were the highest in the breastfeeding group(F= 10.228, p= .000). 4. In a grade of each item on knowledge of breastfeeding, over 80% of mothers wrongly answered in two items; components comparison between breastmilk and cow's milk and when the mother fell sick. whether she have to be feed breastmilk. or not. In the conclusion. this study revealed that knowledge of breastfeeding promoted practice of breastfeeding. However we suggest that systemic and supportive breastfeeding program for promoting the knowledge and the practice rate of breastfeeding have to be provided by nurses.

• Clinical and Experimental Pediatrics
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• v.56 no.3
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• pp.139-142
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• 2013

X-linked recessive myotubular myopathy (XLMTM) is a severe congenital muscle disorder caused by mutations in the MTM1 gene and characterized by severe hypotonia and generalized muscle weakness in affected males. It is generally a fatal disorder during the neonatal period and early infancy. The diagnosis is based on typical histopathological findings on muscle biopsy, combined with suggestive clinical features. We experienced a case of a newborn who required intubation and ventilator care because of profound hypotonia and respiratory difficulty. The preliminary diagnosis at the time of request for retrieval was hypoxic ischemic encephalopathy, but the infant was clinically reevaluated for generalized weakness and muscle atrophy. Muscle biopsies showed variability in fiber size and centrally located nuclei in nearly all the fibers. We detected an MTM1 gene mutation of c.1261-1C>A in the intron 10 region, and diagnosed the neonate with myotubular myopathy. The same mutation was detected in his mother.

• The Journal of Korean Medicine
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• v.38 no.1
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• pp.112-124
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• 2017

Objectives: The purpose of this study is to investigate the various postpartum symptoms and the relevant factors. So it can provide fundamental data about postpartum health care. In conclusion, we can prevent and manage the postpartum disease by using this data. Methods: The subject of the present study was 94 women (63 women who completed vaginal delivery and 31 women who delivered by cesarean section) who completed labor between November 1, 2013 and January 31, 2016, at the clinic of OB&GYN. They have been taking good care of their health at postpartum clinic in Andong Woori Women Hospital. We investigated the various symptoms and situation which occurred from the moment of hospital to postnatal admission health care period, and Korean medical doctor examined the patients through the four examination methods. We classified the symptoms by maternal age, the frequency of maternal childbirth, the method of delivery, the delivery season, the term of pregnancy, the body weight of infant, the weight change of mother and the way of feeding. Results: There were no remarkable corelation in the frequency of symptoms according to maternal age, the way of delivery, the delivery season, the change of weight before and after of delivery, gestational weeks at delivery, the manner of feeding and the body weight of infants except for the frequency of maternal childbirth. Conclusion: The symptoms of hemorrhoids, the feeling of coldness and chilliness increased with increasing the frequency of maternal childbirth. Other circumstances, there was no relationship with symptoms of postpartum.

• The Journal of Korean Medicine
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• v.38 no.1
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• pp.125-133
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• 2017

Objectives: The purpose of this study is to investigate the correlation between postpartium joint diseases and maternal season. So it can prevent postpartum joint diseases and provide fundamental data about postpartum health care. Methods: The subject of the present study was 219 women (142 women who completed vaginal delivery and 77 women who delivered by cesarean section) who completed labor between November 1, 2013 and November 31, 2016, at the clinic of OB&GYN. They have been taking good care of their health at postpartum clinic in Andong Woori Women Hospital. We investigated the various symptoms and situation which occurred from the moment of hospital to postnatal admission health care period and oriental doctor examined the patients. We classified the symptoms by the age of patients, the method of delivery, the term of pregnancy, the body weight of infant, the weight change of mother and the way of feeding. Through data analysis, we investigated the correlation between maternal season and postpartum joint diseases. Results: Postpartum joint diseases were the most common among all symptoms after childbirth. Postpartum joint diseases were classified into shoulder area pain and low back pain. In low back pain, there was no significant difference between maternal season and postpartum joint diseases. In shoulder, wrist and finger pain, pain was the most severe at winter delivery. It was the most painful in winter, followed by autumn, spring and summer. Conclusion: There was a close correlation between postpartum joint disease manifestations and maternal season.

• Nutritional Sciences
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• v.8 no.2
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• pp.111-117
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• 2005

It has been more than three decades since the first assay assessing circulating 25 (OH)D in human subjects was performed That publication as well as several that followed it defined 'normal' nutritional vitamin D status in human populations. Recently, the wisdom by which 'normal' circulating 25 (OH)D levels in human subjects were assigned in the past has come under question. It appears that sampling human subjects, who appear to be free from disease, and assessing 'normal' circulating 25 (OH)D levels by plotting a Gaussian distribution is grossly inaccurate. There are many reasons why this method is inaccurate, including race, lifestyle habits, sunscreen usage, age, latitude, and inappropriately low dietary recommendations for vitamin D. For instance, a 400 IU/day. AI for vitamin D is insignificant when one considers that a 10-15 minute whole body exposure to peak summer sun will generate and release up to 20,000 IU vitamin $D_3$ into the circulation. Recent studies, which orally administered up to 10,000 IU/day vitamin $D_3$ to human subjects for several months, have successfully elevated circulating 25 (OH)D levels to those observed in individuals from sun-rich environments. Further, we are now able to accurately assess sufficient circulating 25 (OH)D levels utilizing specific biomarkers instead of guessing what an adequate level is. These biomarkers include intact parathyroid hormone (PTH), calcium absorption, bone mineral density (BMD), insulin resistance and pancreatic beta cell function. Using the data from these biomarkers, vitamin D deficiency should be defined as circulating levels of 25 (OH)D$\leq$30 ng/mL. In certain cases, such as pregnancy and lactation, significantly higher circulating 25 (OH)D levels would almost certainly be beneficial to both the mother and recipient fetus/infant.