• Clinical and Experimental Pediatrics
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• v.55 no.6
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• pp.202-205
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• 2012

Purpose: This study investigated the epidemiology of Kawasaki disease (KD) in infants ${\leq}3$-month-old. Methods: To study the epidemiology of KD in Korea, data for 27,851 KD patients were collected on a 3-year basis between 2000 and 2008 in a retrospective survey. From this, data for 609 KD patients ${\leq}3$-month-old were analyzed and compared with the data for KD patients >3-month-old. Results: The 609 KD patients ${\leq}3$-month-old (385 males and 224 females) constituted 2.2% of the KD patients. They included 25 infants <1-month-old, 198 infants ${\leq}1$- to 2-month-old, and 386 infants >2- and 3-months-old. The ratio of males to females was 1.72:1. The incidence of coronary artery (CA) dilatation (19.9% vs. 18.7%) and CA aneurysms (3.4% vs. 2.6%) detected by echocardiography did not differ significantly between patients with KD younger and older than 3-month-old. Conclusion: Compared with the data for the KD patients >3-month-old, the data for the 609 patients ${\leq}3$-month-old did not show a significantly higher incidence of CA dilatation or CA aneurysms.

• Korean Journal of Childcare and Education
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• v.17 no.4
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• pp.1-27
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• 2021

Objective: This study aimed to understand mothers' beliefs about infants and their practices. Methods: As a qualitative study, the participants were 11 mothers and their 18-24 month old infants. Data were collected through in-depth interviews and observations. Results: The participants' maternal beliefs about infants were contrasted in terms of infants' abilities and respect for infants. First, the mothers that perceived infants as competent beings, believed that infants can understand daily routine, communicate and empathize, and concentrate. On the contrary, the mothers that perceived infants as incapable beings, believed that infants lack the understanding of daily routine and the abilities of communication, empathy, and concentration. Second, the mothers that perceived infants as subjective beings, respected their infants, and their infants' opinions when making decisions. On the other hand, the mothers that perceived infants as objective beings, believed that infants should be led by adults and their opinions as not being very important. Third, their maternal beliefs were closely connected to their practices. Conclusion/Implications: Since maternal beliefs about infants turn out to be significant in mothers' thoughts and practices with their infants, it is necessary to figure out maternal beliefs about infants and support them to have more positive beliefs.

• Journal of the korean academy of Pediatric Dentistry
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• v.32 no.1
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• pp.174-184
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• 2005

For the purpose of investigating the etiologic factors of early childhood caries in 18-month old infants which is an important period in pediatric dentistry, 234 infants of 18-month age and their first care-givers (mothers in most cases) who visited Ilsin Christian Hospital in Busan for the baby-care counseling and vaccination were examined. The oral examination was performed on the infants and their care-givers were individually interviewed about various items, and the data was statistically processed to yield the results as follows : 1. The prevalence rate of early childhood caries was 27.4%. 2. The percentage of the eldest child, the education level of the mother and monthly income were revealed lower in caries group infants. 3. The percentage of prolonged breast-feeding and the frequency of daily nursing was higher in early childhood caries group. 4. In early childhood caries group, the between-meal snacks were tend to be provided irregularly without predetermined time, and sugar containing snacks such as chocolates and candies were ranked in higher order whereas the fruits and milks were in lower ranks. 5. In early childhood caries group, the percentage of those performing the oral hygienic care was lower and the timing to start the toothbrushing was comparatively later. From the above results, it can be concluded that prolonged breast-feeding, poor snack habits and lower socioeconomic status act an important role in early childhood caries in 18-month old infants.

• Journal of the korean academy of Pediatric Dentistry
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• v.31 no.4
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• pp.714-720
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• 2004

This survey was performed as a pilot of comprehensive survey of 18-month old infants which is an important period in pediatric dentistry. Through the oral examination of 154 infants of 18-month age, labored at Pusan National University Hospital and Ilsin Christian Hospital, and direct interview with their first caregivers (mother in most cases), we investigated into the state of their weaning and feeding, between-meal snacks, oral hygiene care, tooth eruption and dental caries and obtained the results as follows : 1. 73% of the infants had not yet weaned, and 82% of which were being milked during or before sleep without oral hygine care. 2. Snacks were taken in order of fruits, biscuits, cheese, bread and candies, and beverages in order of water, fermented milks, milk, sugared juice, fresh fruit juice. 61% of the infants ate snacks irregularly. 3. The toothbrush for infants was the most popular way of oral hygiene care. The mean age of initiation of tooth brushing was 13.8 months and the mean frequency was 1.6 times a day. 4. The incisors in all infants, the 1st molars in 86%, and canines in 66% were erupted. The average number of erupted teeth was 14.1. 5. The caries prevalence rate was 27.3% and 73% of total caries was observed in maxillary deciduous incisors. dmft index was 0.97. Through these results, it was concluded that a systematic education about weaning time, mode of snacking and the way of oral hygine care is required for the parents.

• Journal of the Korean Home Economics Association
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• v.39 no.3
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• pp.67-81
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• 2001

The purpose of this investigation was to examine whether early child-care experience, alone or in combination with mother/child factors, was associated with emotion regulation. Participants were forty 12-18 month-old infants, their mothers and their caregivers. Infants were observed in the Strange Situation to assess the pattern of emotion regulation. Mothers were interviewed, given Questionnaires, and observed in play. Caregivers were observed in child care to assess the caregiving environment. There were significant main effects of good quality child care on open emotion expression and heightening emotion expression. Significant interaction effects revealed that infants were more likely to be open emotion expression when high maternal sensitivity /responsiveness was combined with good quality child care, or nonmaterial care initiated prior to six month of age. Infants were more likely to be minimizing emotion expression when low maternal sensitivity/responsiveness was combined with nonmaternal care initiated after six month of age, or more than one care arrangement. Difficult temperament infants received nonrelative care were somewhat more likely to be minimizing emotion expression. Infants were more Likely to be heightening emotion expression when high maternal sensitivity/responsiveness was combined with relative care. Boys experiencing nonrelative care were more Likely to be heightening emotion expression.

• Clinical and Experimental Pediatrics
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• v.51 no.8
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• pp.820-826
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• 2008

Purpose : This study was conducted to evaluate the red cell indices and frequency of iron deficiency anemia based on the feeding patterns of nine-month-old infants. Methods : Blood tests were performed on 253 nine-month-old infants, who visited Il Sin Christian Hospital for health check-ups from January to December 2007. Their parents answered telephonic questions regarding their feeding patterns and weaning foods. Results : Three infants groups were created according to feeding patterns before they started weaning foods. One group was exclusively breast-fed (48.6%), another had mixed feeding (27.3%), and the third had artificial milk feeding (24.1%). Red cell indices (hemoglobin, hematocrit, MCV, MCH) of the breast-fed group were comparatively lower than those of the other two groups (P<0.05). Twenty-five infants (9.9%) were diagnosed with iron-deficiency anemia. According to feeding patterns, the frequency of anemia was highest in the breast-fed group. Six infants who started weaning foods before six months of age (113 infants) were diagnosed with iron-deficiency anemia (5.3%), and nineteen who started after six months of age (140 infants) were diagnosed with iron-deficiency anemia (13.6%). Conclusion : When nine-month old infants visit hospitals for health check-ups, pediatricians must consider their feeding pattern and weaning foods histories, and then recommend screening blood tests for iron-deficiency anemia.

• Korean Journal of Child Studies
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• v.34 no.2
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• pp.1-25
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• 2013

The purpose of this study was to examine the relationship among infants' nonverbal communication, maternal verbal behaviors and the infants' acquisition of vocabulary. The subjects were 93 pairs of 10 to 18 months old infants and their mothers residing in the Seoul and GyeongGi-Do area. The results were as follows : (1) In terms of the infants' nonverbal communicative means, it appeared that the group of 16~18 month olds utilized more gesture and vocalization. As regards the infants' nonverbal communicative functions in terms of social behavior and joint attention, the group of 16~18 month olds was found to perform more of the behaviors from this category than the other groups. There was a significant difference in the maternal verbal behavior among the different age groups. (2) Among the infants' nonverbal communicative means, gesture and vocalization, there appeared to be a significant relationship between vocalization and the infants' acquisition of vocabulary. In addition, there was an important relationship between the high usage of infants' nonverbal communicative functions with behavior regulation and the high usage of joint attention and the successful acquisition of vocabulary among infants. (3) Social play, which is a maternal verbal behavior categorized as one of the strategies for getting infants' attention, was significantly related to the acquisition of infants' vocabulary. (4) When mothers used more imitating sounds and mimetic words, requests for information, descriptions, conventional social expressions, and imitation to enhance responsiveness, infants were found to have acquired a larger vocabulary.

• Korean Journal of Child Studies
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• v.26 no.4
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• pp.35-53
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• 2005

The attachment of Korean infants with their mothers was analyzed by individual attachment and interaction behaviors. The Strange Situation was used with 35 12- 18-month-old infants. Results were similar to the findings of Ainsworth et al(l978), in that exploratory and attachment behavior systems of Korean infants changed depending on separation with their mothers. Then again we could discover the orginal attachment characteristics of Korean infants. Korean infants showed meaningful differences in individual attachment and interaction behaviors from the second separation(episode 6), and the difference between attachnet type were also definite from the second separation. Also, the recovery of exploratory behavior from episode 7 with the advent of a stranger was a distinguishable characteristic compared to Ainsworth et al(l978). This empirical evidence mandates the inclusion of episodes 6 in future studies on attachment of Korean infants.

• Journal of dental hygiene science
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• v.11 no.3
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• pp.205-211
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• 2011

The present study seeks to find the effect of oral health status that parents recognized, oral health habit and food intake on existence of decalcified teeth and decayed teeth. Participants were 293 infants aged 18-24 months who visited C dental clinic in Kyungki province between January and December 2010. Questionnaires and oral exam results were used and statistically analyzed by the SPSS program. Fisher's Exact and chi-square test were used to analyze the data. The 18-20 month-old age group had the highest rate of decalcified teeth with 36.4% while the 23-24 month-old age group had the highest rate of decayed teeth with 37.0%. Bottle feeding showed correlation with decalcified teeth, and decayed teeth. Parents were able to recognize decayed teeth and decalcified teeth. Group 2 food(soda/soft drinks/sugared fruit juice) was related to decalcified teeth and decayed teeth(p<.001). Group 4 food (cake/cookies/doughnut/dried fruit/banana) and group 5food(caramel/candy/chocolate bar) were both related to decalcified teeth(p<.001). As the result of dental examination, dental treatment was highly needed for the 21-22 month-old age group(89.3%), and preventive treatment and plaque control were highly needed for the 18-20 month-old age group(94.5%). The results concluded that 18-24 months was the critical period for children's oral health, therefore organized oral health education for parents is necessary.

• Korean Journal of Child Studies
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• v.23 no.2
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• pp.17-30
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• 2002

The subjects of this study on self-awareness were sixty-four 8- to 30-month-old infants. They were tested with the "Behaviors Observed in Mirror Conditions" (Lewis & Brooks-Gunn, 1979; translated by Jong Moo Kim, 1989). Analyses were by descriptive statistics and ANOVA. Most infants responded when they saw their reflection in the mirror, and their self-awareness increased with age. Most infants under 17 months didn't respond before and after rouge was painted on their noses, but by 18- to 23-months, they started to show a response. Most of the infants older than 24 months noticed something unusual and tried to rub the rouge off when they saw their reflection. This study provides evidence that infants begin to show self-awareness after 18 months of age, and this self-awareness is well developed after 24 months of age.