Background Adolescent dependency on smartphones is the highest among all age groups. Adolescents can be influenced to evaluate their body image by popular ideals about beautiful bodies via smartphone content, which can cause body image distortion. This study aimed to examine the association between body image distortion and smartphone dependency and the duration of smartphone usage among Korean adolescents.
Methods This study used data from the 16th Korean Youth Risk Behavior Web-Based Survey (2020), and included 42,981 participants, who were grouped according to self-reported duration of smartphone usage and smartphone dependency, as measured by a questionnaire. Body image distortion is defined as an exaggerated subjective body image compared to the actual body image. Multivariable-adjusted logistic regression was used to determine the odds ratios (ORs) with 95% confidence intervals (CIs) of body image distortion on smartphone dependency and usage time after adjusting for various factors related to body image distortion.
Results Among the 42,981 participants, both moderate and high levels of smartphone dependency were associated with body image distortion in boys (moderate: adjusted OR [aOR], 1.11; 95% CI, 1.01–1.22; high: aOR, 1.18; 95% CI, 1.05–1.32) and girls (moderate: aOR, 1.14; 95% CI, 1.05–1.23; high: aOR, 1.30; 95% CI, 1.18–1.42) compared to the low-level dependency group. However, no significant association was found between smartphone usage duration and body image distortion.
Conclusion Our study demonstrated that moderate to high levels of smartphone dependency are associated with body image distortion in adolescents. Therefore, it is necessary to establish strategies for checking and managing adolescents’ smartphone dependence.
Citations
Citations to this article as recorded by
Excessive smartphone use, smartphone dependency and body image distortion in Korean adolescents Young Gyu Cho Korean Journal of Family Medicine.2025; 46(2): 58. CrossRef
Social Media Use and Body Image Dissatisfaction Among University Students of Health Sciences in Saudi Arabia Ihdaa J Abdulwahab, Jumana H Khouja, Noha A Alzahrani, Amina Bargawi Cureus.2024;[Epub] CrossRef
Background Since the World Health Organization’s pandemic declaration in March 2020, Korea has witnessed shifts in lifestyle behaviors, impacting habits tied to socioeconomic status and contributing to metabolic syndrome (MetS). To investigate this issue, the current study aimed to investigate changes in MetS prevalence, particularly based on income levels before and after the coronavirus disease 2019 (COVID-19) pandemic.
Methods This study used data from the 8th Korea National Health and Nutrition Examination Survey (2019–2020). A total of 6,840 individuals aged 30–65 years were included in this study. Household income was divided into high (≥75th percentile), middle (25–75th percentile), and low (≤25th percentile). A multivariable logistic regression analysis was performed to explore the interaction between this association before and after the COVID-19 pandemic.
Results A statistically significant difference was found in the prevalence of MetS before and after the COVID-19 pandemic (26.7% to 30.2%, P=0.001). These changes differed based on income levels. The increase in the prevalence of MetS was statistically significant in the low- and high-income groups but not in the middle-income group (low: 8.0%p increase [P=0.039], middle: 1.0%p increase [P=0.522], high: 6.4%p increase [P<0.001]). The interaction between household income and the COVID-19 pandemic on MetS was statistically significant (P for interaction=0.032).
Conclusion This study revealed that P for interaction between household income, MetS, and the period before and after the COVID-19 pandemic was significant. Changes in physical activity and eating habits during the COVID-19 pandemic may have contributed to these differences.
Background This study aimed to examine the association between coffee or green tea consumption and ferritin or hemoglobin levels in premenopausal women.
Methods We used the fifth Korea National Health and Nutrition Examination Survey (2010–2012), and a total of 4,322 individuals were surveyed. In women of reproductive age, average ferritin and hemoglobin levels were calculated according to coffee or green tea consumption. Covariates included in the analysis were demographic variables, such as age, body mass index, education, drinking, smoking, history of hypertension, history of diabetes diagnosis, physical activity, total energy intake, and daily iron intake.
Results In 4,322 participants, the average hemoglobin level was 12.90±0.02 g/dL, and the average level of ferritin was 31.95±0.67 ng/mL. As a result of testing, correlation between ferritin and coffee intake and difference in ferritin levels according to coffee consumption was significant (P<0.05). In this study, a post hoc test indicated that ferritin level significantly differed between one and two cups, two and three cups, and three and one cup groups (overall P<0.001). Additionally, there was a negative correlation between ferritin level and coffee intake; ferritin level decreased by 2.09 ng/mL with a one-cup increase in daily coffee consumption.
Conclusion In premenopausal women, coffee intake is associated with low serum ferritin levels. Our results indicate that drinking >2 cups of coffee significantly affect ferritin levels in Korean premenopausal women.
Citations
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Women’s Health and Primary Care Seung-Won Oh Korean Journal of Family Medicine.2024; 45(1): 1. CrossRef
Guidelines for nutrition counseling in primary healthcare clinics Gyeongsil Lee, Seung-Won Oh Journal of the Korean Medical Association.2024; 67(4): 278. CrossRef
Dietary diversity and preferences among pregnant women and its association with anaemia Benedicta Twum - Dei, Richmond Aryeetey, Linda Nana Esi Aduku Nutrition & Food Science
.2024; 54(4): 805. CrossRef
Association Between Tea Drinking and Anemia in Women of Reproductive Age: A Cross-Sectional Study From the Mekran Division, Balochistan, Pakistan Noman Sadiq, Yasmeen Gul, Muhammad M Bilal, Muhammad Afzal, Nasrin Mumtaz, Abdul Wahid Cureus.2024;[Epub] CrossRef
Does tea intake increase the risk of anemia? Evidence from a large prospective cohort and Mendelian randomization study Rui Hang Zhang, Wei Sen Zhang, Chao Qiang Jiang, Feng Zhu, Ya Li Jin, Shiu Lun Au Yeung, Tai Hing Lam, Lin Xu, Jiao Wang Food & Function.2024; 15(18): 9552. CrossRef
A Comparative Study of the Effect Coffee and Tea on Some Parameters in the Rats Blood Sadiq Al-Mansury, Suhad J. Hadi, Hawraa H. Naji, Adnan M. Jassim, Shatha M. Abbas, Nada Khazal K. Hindi Medical Journal of Babylon.2024; 21(3): 627. CrossRef
Association between Coffee and Green Tea Consumption and Iron Deficiency Anemia in Korea Jungun Lee Korean Journal of Family Medicine.2023; 44(2): 69. CrossRef
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