1.Development and usability evaluation of a web-based healthy eating practice questionnaire for Korean preschool children: a child–parent dyad approach
Young-Hee HAN ; Dawon PARK ; Dahyeon KIM ; Saerom SHIN ; Eun Yeol WOO ; Hye-Kyung PARK ; Taisun HYUN
Nutrition Research and Practice 2026;20(1):132-144
BACKGROUND/OBJECTIVES:
The illustrated Healthy Eating Practice Questionnaire (HEPQ) was previously developed to assess food preferences, eating behaviors, hand/oral hygiene practices, and nutrition knowledge among Korean preschool children. Nevertheless, the lack of an integrated scoring system has limited its interpretability. This study developed a scoring system and a web-based platform with tailored feedback using a child-parent dyad approach.
SUBJECTS/METHODS:
The development process consisted of 5 phases: 1) questionnaire preparation for online use, 2) formulation of the scoring system, 3) determination of the cut-off values for three levels of healthy eating practices based on a child-parent survey, 4) technical development of the online platform, and 5) usability evaluation. A scoring system was established by standardizing the domain scores to a 100-point scale. One hundred child– parent pairs participated in the survey to calculate the Healthy Eating Practice Score (HEPS) and determine cut-off values for the HEPS levels. The validity of the cut-off values was examined by a comparison with the Nutrition Quotient for Preschoolers (NQ-P). A web-based platform was developed, and 47 child–parent pairs were used to assess its usability.
RESULTS:
Significant positive correlations were observed between child and parent HEPS across all domains. The HEPS-based classification showed good discriminative ability because higher HEPS levels were consistently associated with higher NQ-P scores in children and parents. The web-based HEPQ was easy to use and understand, and almost all participants (97.9% of children and 93.6% of parents) reported no difficulties using the platform.
CONCLUSION
The web-based HEPQ platform with an integrated scoring system provides a valid, user-friendly tool for assessing and interpreting healthy eating practices in preschool children. This platform supports parental engagement in children’s healthy eating practices and provides a practical tool for evaluating the effectiveness of nutrition education in early childcare settings.
2.Development and validation of an illustrated questionnaire on healthy eating practices among Korean preschool children
Dawon PARK ; Bo-Jeong GONG ; Dahyeon KIM ; Young-Hee HAN ; Saerom SHIN ; Eun Yeol WOO ; Hye-Kyung PARK ; Taisun HYUN
Nutrition Research and Practice 2025;19(6):985-1001
BACKGROUND/OBJECTIVES:
An illustrated questionnaire, the Healthy Eating Practice Questionnaire (HEPQ), was developed and validated to assess healthy eating practices among Korean preschool children.
SUBJECTS/METHODS:
The development process consisted of 4 phases: (1) item generation based on a literature review and focus group interviews, (2) item refinement through expert consultation, (3) illustration design, and (4) validation. One hundred and eighty-seven child–parent pairs and 24 teachers participated in the validation study. The reliability was examined using test–retest analysis, and the validity was assessed by comparing the children’s self-reports with those of their parents and teachers. The level of agreement was determined using the percentage agreement, kappa statistics, and intraclass correlation coefficient (ICC).
RESULTS:
The final 30-item questionnaire consisted of 4 domains: food preferences, eating behaviors, hand/oral hygiene practices, and nutrition knowledge. Most items showed a percentage agreement above 60% and kappa coefficients exceeding 0.5 in test–retest analysis, indicating acceptable consistency. The child–caregiver agreement was moderate to substantial, with kappa values generally above 0.4. The domain-level ICCs indicated good reliability (ICC = 0.49–0.83) and validity (ICC = 0.33–0.77) across all domains and subgroups.The comparisons by age showed that 4-yr-olds provided valid and reliable responses comparable to 5-yr-olds. The parents and teachers confirmed that the illustrated format was easy for the children to understand and complete independently.
CONCLUSION
The HEPQ showed satisfactory reliability and validity for assessing healthy eating practices among preschool children. The illustrated format enhances comprehension and engagement, supporting its applicability for research and nutrition education in daycare settings.
3.Efficacies of different treatment strategies for infants hospitalized with acute bronchiolitis
Hyeri JEONG ; Dawon PARK ; Eun Kyo HA ; Ju Hee KIM ; Jeewon SHIN ; Hey-Sung BAEK ; Hyunsoo HWANG ; Youn Ho SHIN ; Hye Mi JEE ; Man Yong HAN
Clinical and Experimental Pediatrics 2024;67(11):608-618
Background:
Acute bronchiolitis is a common cause of hospitalization during infancy that carries significant morbidity and mortality rates.Purpose: This study compared the efficacy of different treatment modalities for infants with bronchiolitis in terms of hospital stay and clinical severity scores.
Methods:
The PubMed database was searched for relevant studies. Eligibility criteria included double-blind randomized controlled trial design, assessment of the effect of treatment on bronchiolitis in infants under 2 years of age, and publication in English from inception through July 31, 2020. The primary efficacy outcome was the length of hospital stay, while the secondary outcome was the clinical severity score. The standardized treatment effect and standard error of the effect size were calculated.
Results:
We identified 45 randomized controlled trials of 24 pairwise comparisons. These 45 trials included 5,061 participants and investigated 13 types of interventions (12 active, 1 placebo). Inhalation therapy with epinephrine (standard mean difference [SMD], -0.41; 95% confidence interval [CI], -0.8 to -0.03) and hypertonic saline (SMD, -0.29; 95% CI, -0.55 to -0.03) reduced the length of hospital stay compared with normal saline. Hypertonic saline was the most effective at improving the clinical severity score (SMD, -0.52; 95% CI, -0.95 to -0.10).
Conclusion
Inhalation therapy with epinephrine and hypertonic saline reduced the length of hospital stay and the clinical severity of bronchiolitis among infants under 2 years of age.
4.Efficacies of different treatment strategies for infants hospitalized with acute bronchiolitis
Hyeri JEONG ; Dawon PARK ; Eun Kyo HA ; Ju Hee KIM ; Jeewon SHIN ; Hey-Sung BAEK ; Hyunsoo HWANG ; Youn Ho SHIN ; Hye Mi JEE ; Man Yong HAN
Clinical and Experimental Pediatrics 2024;67(11):608-618
Background:
Acute bronchiolitis is a common cause of hospitalization during infancy that carries significant morbidity and mortality rates.Purpose: This study compared the efficacy of different treatment modalities for infants with bronchiolitis in terms of hospital stay and clinical severity scores.
Methods:
The PubMed database was searched for relevant studies. Eligibility criteria included double-blind randomized controlled trial design, assessment of the effect of treatment on bronchiolitis in infants under 2 years of age, and publication in English from inception through July 31, 2020. The primary efficacy outcome was the length of hospital stay, while the secondary outcome was the clinical severity score. The standardized treatment effect and standard error of the effect size were calculated.
Results:
We identified 45 randomized controlled trials of 24 pairwise comparisons. These 45 trials included 5,061 participants and investigated 13 types of interventions (12 active, 1 placebo). Inhalation therapy with epinephrine (standard mean difference [SMD], -0.41; 95% confidence interval [CI], -0.8 to -0.03) and hypertonic saline (SMD, -0.29; 95% CI, -0.55 to -0.03) reduced the length of hospital stay compared with normal saline. Hypertonic saline was the most effective at improving the clinical severity score (SMD, -0.52; 95% CI, -0.95 to -0.10).
Conclusion
Inhalation therapy with epinephrine and hypertonic saline reduced the length of hospital stay and the clinical severity of bronchiolitis among infants under 2 years of age.
5.Efficacies of different treatment strategies for infants hospitalized with acute bronchiolitis
Hyeri JEONG ; Dawon PARK ; Eun Kyo HA ; Ju Hee KIM ; Jeewon SHIN ; Hey-Sung BAEK ; Hyunsoo HWANG ; Youn Ho SHIN ; Hye Mi JEE ; Man Yong HAN
Clinical and Experimental Pediatrics 2024;67(11):608-618
Background:
Acute bronchiolitis is a common cause of hospitalization during infancy that carries significant morbidity and mortality rates.Purpose: This study compared the efficacy of different treatment modalities for infants with bronchiolitis in terms of hospital stay and clinical severity scores.
Methods:
The PubMed database was searched for relevant studies. Eligibility criteria included double-blind randomized controlled trial design, assessment of the effect of treatment on bronchiolitis in infants under 2 years of age, and publication in English from inception through July 31, 2020. The primary efficacy outcome was the length of hospital stay, while the secondary outcome was the clinical severity score. The standardized treatment effect and standard error of the effect size were calculated.
Results:
We identified 45 randomized controlled trials of 24 pairwise comparisons. These 45 trials included 5,061 participants and investigated 13 types of interventions (12 active, 1 placebo). Inhalation therapy with epinephrine (standard mean difference [SMD], -0.41; 95% confidence interval [CI], -0.8 to -0.03) and hypertonic saline (SMD, -0.29; 95% CI, -0.55 to -0.03) reduced the length of hospital stay compared with normal saline. Hypertonic saline was the most effective at improving the clinical severity score (SMD, -0.52; 95% CI, -0.95 to -0.10).
Conclusion
Inhalation therapy with epinephrine and hypertonic saline reduced the length of hospital stay and the clinical severity of bronchiolitis among infants under 2 years of age.
6.Efficacies of different treatment strategies for infants hospitalized with acute bronchiolitis
Hyeri JEONG ; Dawon PARK ; Eun Kyo HA ; Ju Hee KIM ; Jeewon SHIN ; Hey-Sung BAEK ; Hyunsoo HWANG ; Youn Ho SHIN ; Hye Mi JEE ; Man Yong HAN
Clinical and Experimental Pediatrics 2024;67(11):608-618
Background:
Acute bronchiolitis is a common cause of hospitalization during infancy that carries significant morbidity and mortality rates.Purpose: This study compared the efficacy of different treatment modalities for infants with bronchiolitis in terms of hospital stay and clinical severity scores.
Methods:
The PubMed database was searched for relevant studies. Eligibility criteria included double-blind randomized controlled trial design, assessment of the effect of treatment on bronchiolitis in infants under 2 years of age, and publication in English from inception through July 31, 2020. The primary efficacy outcome was the length of hospital stay, while the secondary outcome was the clinical severity score. The standardized treatment effect and standard error of the effect size were calculated.
Results:
We identified 45 randomized controlled trials of 24 pairwise comparisons. These 45 trials included 5,061 participants and investigated 13 types of interventions (12 active, 1 placebo). Inhalation therapy with epinephrine (standard mean difference [SMD], -0.41; 95% confidence interval [CI], -0.8 to -0.03) and hypertonic saline (SMD, -0.29; 95% CI, -0.55 to -0.03) reduced the length of hospital stay compared with normal saline. Hypertonic saline was the most effective at improving the clinical severity score (SMD, -0.52; 95% CI, -0.95 to -0.10).
Conclusion
Inhalation therapy with epinephrine and hypertonic saline reduced the length of hospital stay and the clinical severity of bronchiolitis among infants under 2 years of age.
7.Improving the nutrition quotient and dietary self-efficacy through personalized goal setting and smartphone-based nutrition counseling among adults in their 20s and 30s
Dahyeon KIM ; Dawon PARK ; Young-Hee HAN ; Taisun HYUN
Journal of Nutrition and Health 2023;56(4):419-438
Purpose:
This study examines the effectiveness of personalized goal setting and smartphonebased nutrition counseling among adults in their 20s and 30s.
Methods:
Nutrition counseling was conducted for a total of 30 adults through a 1:1 chat room of a mobile instant messenger, once a week for 8 weeks. The first week of counseling included a preliminary online questionnaire survey and a dietary intake survey. Based on the results of the preliminary survey, 2 dietary goals were set in the second week and the participants were asked to record their achievements on a daily checklist. From the third week onwards, counselors sent feedback messages based on the checklist and provided information on dietary guidelines in a card news format every week. Post-counseling questionnaires and dietary intake surveys were conducted in the seventh week. Changes in dietary habits during the counseling were reviewed in the eighth week, followed by a questionnaire survey on the evaluation of the counseling process.
Results:
The nutrition quotient (NQ) scores and self-efficacy scores were significantly higher after nutrition counseling. The NQ scores of consumption frequencies of fruits, milk and dairy products, nuts, fast food, Ramyeon, sweet and greasy baked products, sugarsweetened beverages, the number of vegetable dishes at meals, and breakfast frequency were significantly higher after nutrition counseling. The intake of protein, vitamin A, thiamin, riboflavin, folate, calcium, and iron, and the index of nutritional quality of vitamin A, riboflavin, folate, calcium, and iron were higher after nutrition education. The participants were satisfied with the nutrition counseling program and the provided nutrition information.
Conclusion
Personalized goal setting and smartphone-based nutrition counseling were found to be effective in improving the quality of diet and self-efficacy in young adults. Similar results were obtained in both the underweightormal weight and the overweight/obese groups.
8.Personal Exposure to Total VOC Is Associated With Symptoms of Atopic Dermatitis in Schoolchildren
Eun Kyo HA ; Ju Hee KIM ; Dawon PARK ; Eun LEE ; Seung Won LEE ; Hye Mi JEE ; Youn Ho SHIN ; Man Yong HAN
Journal of Korean Medical Science 2022;37(8):e63-
Background:
The urinary levels of volatile organic compound (VOC) metabolites provide individual exposure levels compared to data obtained by measuring these compounds in ambient air. We aimed to investigate the association between personal urinary concentrations of VOC metabolites and symptoms of atopic dermatitis in schoolchildren.
Methods:
Nine urinary VOC metabolites were analyzed from urine samples of 149 children. Diagnosis of atopic dermatitis was determined using standardized questionnaires. Pediatricians visited the schools and rated the severity of symptoms using the SCORing Atopic Dermatitis (SCORAD) in all children.
Results:
Forty-five children (30.2%) had atopic dermatitis based on the International Study of Asthma and Allergies in Childhood (ISAAC) results and 35 children (23.8%) had symptoms of atopic dermatitis with positive SCORAD index values (defined as SCORAD ≥ 5). Children with benzylmercapturic acid detected in personal urines were associated with presence of atopic dermatitis and positive SCORAD index values. Children in the highest quartile of mandelic acid concentration were associated with presence of atopic dermatitis and positive SCORAD results.
Conclusion
Personal exposure to VOCs, as indicated by urinary levels of VOC metabolites, was associated with presence of atopic dermatitis and the SCORAD index value.
9.Bioassay-coupled LC-QTOF MS/MS to Characterize Constituents Inhibiting Nitric Oxide Production of Thuja orientalis
Dawon PARK ; Hyeji SHIN ; Youngjoo BYUN ; Ki Yong LEE
Natural Product Sciences 2021;27(4):293-299
The ethyl acetate fractions prepared from the leaves of Thuja orientalis significantly inhibited nitric oxide (NO) production in lipopolysaccharide-stimulated BV2 microglial cells. According to bioassay-coupled LC-QTOF MS/MS, the components near 22 and 25 mins in the mass chromatogram highly inhibited NO production and were expected to be labdane diterpenes, and the active components were characterized via further isolation. The results of the NO production inhibitory assay of the isolated compounds correlated well with the results of bioassay-coupled LC-QTOF MS/MS. Among the identified constituents, NO production inhibitory activities of 16-hydroxy-labda-8(17),13-diene-15,19-dioic acid butenolide (2) and 15-hydroxypinusolidic acid (3) were newly reported. Taken together, these results demonstrated that LC-QTOF MS/MS coupled with NO production inhibition assay was a powerful tool for accurately predicting new anti-inflammatory constituents in the extracts from natural products. Moreover, it provided a potential basis for broadening the application of bioassay-coupled LC-QTOF MS/MS in natural product research.
10.Robotic Transoral Thyroidectomy: Right Thyroidectomy and Ipsilateral Central Neck Dissection with da Vinci Si Surgical System
Hyo Ki KIM ; Hong Kyu KIM ; Dawon PARK ; Hoon Yub KIM
Journal of Minimally Invasive Surgery 2019;22(1):43-45
Transoral approach for thyroidectomy recently gains a lot of attention among the thyroid surgeons, with the merits of cosmetic outcomes and minimal flap dissection. We've successfully introduced the robotic surgical system to the transoral approach for thyroidectomy. For transoral robotic thyroidectomy, we made 3 incisions in the gingival-buccal sulcus for three intraoral ports. An additional axilla port was inserted for counter-traction and later drain insertion. Herein, our unique procedures of transoral robotic thyroidectomy (TORT) are described in the treatment of a patient with papillary thyroid carcinoma.
Axilla
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Humans
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Neck Dissection
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Neck
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Surgeons
;
Thyroid Gland
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Thyroid Neoplasms
;
Thyroidectomy

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