Objective
To investigate the association between vitamin E and handgrip strength (HGS) with multiple factors.
Methods
A total of 1,814 participants were included (822 men and 981 women) from the Korean subjects of the 7th Korea National Health and Nutrition Examination Survey in 2018. Data were analyzed using multiple logistic regression to determine the correlation between vitamin E and HGS with potential confounding factors.
Results
In the multiple logistic regression model, only the young age group (19–40 years) of men showed a positive relationship between vitamin E and HGS. However, in older age groups (41–80 years) of men and all age groups of women, there was no statistically significant result. After adjusting for confounding factors, young men showed higher vitamin E levels and higher HGS. Conversely, women and older age groups did not show significant results after adjusting for confounding factors.
Conclusion
In this study, the serum vitamin E level had a positive effect on HGS in young men (<40 years). Further research is needed on this topic regarding vitamin E intake and other objective measures.

Citations

• Role of Serum and Dietary Vitamins A and E in Pulmonary Function and Chronic Obstructive Pulmonary Disease: A Systematic Review
  Shabina Saifullah, Amna Ihsan, Syed Haris Ali Shah, Afshan Iftikhar, Muhammad Hassan Ali Khan, Naveed Pervez
  Pakistan Journal of Health Sciences.2025;[Epub]     CrossRef
• Evaluation of personal water footprint components in Turkey: factors associated with obesity and food consumption
  Merve Şeyda Karaçil Ermumcu, Merve Esra Çıtar Dazıroğlu, Nazlıcan Erdoğan Gövez, Nilüfer Acar Tek
  International Journal of Environmental Health Research.2024; 34(1): 432.     CrossRef
• Narrative Review of Sex Differences in Muscle Strength, Endurance, Activation, Size, Fiber Type, and Strength Training Participation Rates, Preferences, Motivations, Injuries, and Neuromuscular Adaptations
  James L. Nuzzo
  Journal of Strength & Conditioning Research.2023; 37(2): 494.     CrossRef
• Effects of leucine-rich protein supplements in older adults with sarcopenia: A systematic review and meta-analysis of randomized controlled trials
  Sang Yoon Lee, Hyun Jeong Lee, Jae-Young Lim
  Archives of Gerontology and Geriatrics.2022; 102: 104758.     CrossRef
• Handgrip Strength: An Irreplaceable Indicator of Muscle Function
  Sang Yoon Lee
  Annals of Rehabilitation Medicine.2021; 45(3): 167.     CrossRef
• Folic Acid Is Related to Muscle Strength and Vitamin A Is Related to Health-Related Quality of Life: Results of the Korea National Health and Nutrition Examination Survey (KNHANES VII 2016–2018)
  Mee-Ri Lee, Sung Min Jung
  Nutrients.2021; 13(10): 3618.     CrossRef

Objective
To compare the relationship of the Bayley Scales of Infant and Toddler Development 3rd Edition (K-BSID-III) language score and the Sequenced Language Scale for Infant (SELSI) score and evaluate the sensitivity and specificity of K-BSID-III language score and optimal cutoff value with receiver operator characteristic (ROC) curve analysis in infants and toddlers with delayed language development.
Methods
A total of 104 children with suspected language developmental delay were included in this retrospective study. Subjects were tested using the K-BSID-III and SELSI and subdivided into several groups according to the severity of language scores. ROC curve analysis was performed to assess K-BSID-III for delayed language development.
Results
Receptive and expressive language subscales of the K-BSID-III showed markedly significant correlation with the SELSI scores (p<0.001). ROC analysis showed an area under the curve of 0.877 (p<0.001) in SELSI receptive score and 0.935 (p<0.001) in SELSI expressive score. The optimal cutoff value where sensitivity of 85% and specificity of 81% were achieved with the K-BSID-III receptive score was 1.50 (between average and low average) in the SELSI receptive score. The optimal cutoff value where sensitivity of 96% and specificity of 82% were achieved with the K-BSID-III expressive score was also 1.50 in the SELSI expressive score.
Conclusion
In this study, the correlations between K-BSID-III and SELSI language scores were statistically significant. However, the interpretation should be considered carefully in low average group due to tendency of underestimation of delayed language development.

Citations

• Comparative analysis of the effects of early breastfeeding versus formula feeding on the growthand development of preterm infants
  Paygozar Rasool
  Journal of the Selva Andina Research Society.2025; 16(2): 128.     CrossRef
• Analysis of the impact of parents' electronic screen time habits, young children's screen exposure and parent-child interaction on language development delay in young children
  Xiaohong Wan, Xiaoqing Kang, Shunli Chen, Juan Du, Fang Yan, Yongqi Bai
  Frontiers in Pediatrics.2025;[Epub]     CrossRef
• Short-term and long-term effects of skin-to-skin contact in healthy term infants: study protocol for a parallel-group double-blind randomised controlled trial
  Hannah Cho, Jiseon Park, Seung-Ah Choe, Juyoung Lee
  BMJ Open.2025; 15(10): e104809.     CrossRef
• Effects and Predictors of Two-Person Small Group Speech Therapy in Children With Language Disorder: A Retrospective Observational Study
  Chang Hee Lee, Jecheon Seong, Yun Jung Lee, Jeonghun Kim, Aram Kim
  Annals of Rehabilitation Medicine.2025; 49(6): 392.     CrossRef
• Neonatal outcomes of early preterm births according to the delivery indications
  Hyojeong Kim, Yu Mi Shin, Kyong-No Lee, Hyeon Ji Kim, Young Hwa Jung, Jee Yoon Park, Kyung Joon Oh, Chang Won Choi
  Early Human Development.2023; 186: 105873.     CrossRef
• The effect of dexmedetomidine on neuroprotection in pediatric cardiac surgery patients: study protocol for a prospective randomized controlled trial
  Sang-Hwan Ji, Pyoyoon Kang, In-Sun Song, Young-Eun Jang, Ji-Hyun Lee, Jin-Tae Kim, Hee-Soo Kim, Eun-Hee Kim
  Trials.2022;[Epub]     CrossRef
• Characteristics of Functional Speech Sound Disorders in Korean Children
  Min Jeong Han, Sun Jun Kim
  Annals of Child Neurology.2021; 30(1): 8.     CrossRef