scholarly journals Puberty could regulate the effects of outdoor time on refractive development in Chinese children and adolescents

2020 ◽  
pp. bjophthalmol-2019-315636
Author(s):  
Jingjing Wang ◽  
Tianyu Cheng ◽  
Bo Zhang ◽  
Shuyu Xiong ◽  
Huijuan Zhao ◽  
...  
Keyword(s):  
Children And Adolescents ◽  
Axial Length ◽  
Chinese Children ◽  
Related Factors ◽  
Refractive Development ◽  
Significant Difference ◽  
Length Changes ◽  
The Impact ◽  
The Relationship ◽  
Chinese Children And Adolescents

AimTo explore the impact of puberty on refractive development and its interaction with outdoor time in children and adolescents.MethodsIn this 2-year observational study, students aged 7–13 years were selected with cluster sampling. All participants underwent cycloplegic refraction and axial length measurements once every year. Information of related factors was acquired through proper questionnaire or inquiry. The level of testosterone/estradiol was detected from the saliva of the subjects using the ELISA kit. Multiple linear regression and generalised estimating equation (GEE) were used to analyse the relationship among puberty, outdoor activities and refractive indicators.ResultsA total of 776 children and adolescents were included, with an average baseline age of 9.64±1.54 years and 53.6% boys. There were 350 myopes (55.2% of the 634 cyclopleged subjects) at baseline. There was a significant difference in the mean axial length changes and outdoor time among different puberty groups (for axial length: p=0.017, for outdoor time: p=0.015). Myopic parents, less outdoor time and more changes in estradiol were associated with greater changes in axial length and spherical equivalent (SE) (axial length changes: parental myopia β=0.230, outdoor time β=−0.250, changes in estradiol β=0.261; SE changes: parental myopia β=−0.267, outdoor time β=0.256, changes in estradiol β=−0.297). In the GEE model, the interaction between outdoor time and puberty was significantly associated with axial length (p=0.024, β=1.199).ConclusionsThis study implies puberty may play a regulating role on the relationship between outdoor time and refractive development among Chinese children and adolescents, which provides clues for in-depth mechanism interpretation and efficient intervention strategies.

scholarly journals Relationship of Sodium Intake with Overweight/Obesity among Chinese Children and Adolescents: Data from the CNNHS 2010–2012

2021 ◽  
Vol 18 (9) ◽  
pp. 4551
Author(s):  
Kehong Fang ◽  
Yuna He ◽  
Yuehui Fang ◽  
Yiyao Lian
Keyword(s):  
Children And Adolescents ◽  
Abdominal Obesity ◽  
Sodium Intake ◽  
Saturated Fatty Acids ◽  
Positive Association ◽  
Chinese Children ◽  
Weighing Method ◽  
Relationship Of ◽  
The Relationship ◽  
Chinese Children And Adolescents

This study aims to examine association between sodium intake and overweight/obesity among Chinese children and adolescents. Data were obtained from China National Nutrition and Health Surveillance (CNNHS), 2010–2012. All participants recruited in this study aged 7–18 years old and provided complete dietary data on three-day consecutive 24 h dietary recalls combining with the household weighing method. Body Mass Index (BMI) was used to define overweight/obesity, and waist-to-height ratio (WHtR) was used to define abdominal obesity. Sodium intake showed association with risk of overweight/obesity assessed by BMI in the highest tertile group with OR of 1.48 (95%CI 1.13–1.94) and 1.89 (95%CI 1.33–2.67) for WHtR. After adjusted for gender, age, household income, area, energy, carbohydrates, protein, fat, saturated fatty acids, and fiber intake, the relationship between sodium intake and overweight/obesity and abdominal obesity are not changed. The same results were founded in subjects aged 10–18 years old. Our results reveal a positive association between sodium intake and overweight/obesity in Chinese children and adolescents, independent of energy consumption.

The association between a metabolically healthy overweight/obesity phenotype and markers of inflammation among Chinese children and adolescents aged 10–18 years

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Jinyu Zhou ◽  
Ling Bai ◽  
Yangyang Dong ◽  
Rongrong Cai ◽  
Wenqing Ding
Keyword(s):  
Children And Adolescents ◽  
Inflammatory Markers ◽  
Normal Weight ◽  
Chinese Children ◽  
Metabolic Phenotypes ◽  
Tnf Α ◽  
Metabolically Healthy ◽  
Hs Crp ◽  
The Relationship ◽  
Chinese Children And Adolescents

Abstract Objectives The association between metabolically healthy overweight/obesity (MHO) and inflammatory markers remains controversial. The aim of the present study was to describe the prevalence of different metabolic phenotypes and to examine the relationship of different metabolic phenotypes with inflammatory markers among Chinese children and adolescents. Methods The study included 1,125 children and adolescents aged 10–18 years using a cross-sectional survey, and all subjects were classified into four groups based on a combination of BMI and metabolic status. In addition, the inflammatory markers we measured were high-sensitivity C-reactive protein (hs-CRP), tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6). Results The prevalence of metabolically healthy with normal-weight (MHNW), MHO, metabolically unhealthy with normal-weight (MUNW), and metabolically unhealthy overweight/obesity (MUO) phenotypes was 38.76, 7.11, 38.67 and 15.47%, respectively. The results of logistic regression analysis showed that the MHO was associated with the z scores of hs-CRP in Chinese children and adolescents (OR=0.57, 95% CI: 0.39–0.83). Meanwhile, multivariate adjusted regression analysis showed that the relationship between hs-CRP and MHO among the overweight/obese was consistent with the results above, but among the normal-weight, only the highest quartile of TNF-α could increase the risk of MUNW (OR=1.65, 95% CI: 1.09–2.52). Conclusions MHO phenotypes were not common in Chinese children and adolescents. Individuals with MHO had a more beneficial hs-CRP profile than those with MUO.

scholarly journals Vitamin D Nutritional Status and its Related Factors for Chinese Children and Adolescents in 2010–2012

Nutrients ◽  
2017 ◽  
Vol 9 (9) ◽  
pp. 1024 ◽  
Author(s):  
Yichun Hu ◽  
Jing Chen ◽  
Rui Wang ◽  
Min Li ◽  
Chunfeng Yun ◽  
...  
Keyword(s):  
Vitamin D ◽  
Nutritional Status ◽  
Children And Adolescents ◽  
Chinese Children ◽  
Related Factors ◽  
Chinese Children And Adolescents

scholarly journals Short-Term Effects of Overnight Orthokeratology on Corneal Sensitivity in Chinese Children and Adolescents

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Wanqing Jin ◽  
Jiangping Ye ◽  
Jiafan Zhang ◽  
Yu Zhu ◽  
Frank Thorn ◽  
...  
Keyword(s):  
Children And Adolescents ◽  
Baseline Level ◽  
Marked Change ◽  
Chinese Children ◽  
Corneal Sensitivity ◽  
Regularity Index ◽  
Significant Difference ◽  
Uncorrected Visual Acuity ◽  
Treatment Changes ◽  
Chinese Children And Adolescents

Purpose. To assess the effects of the 3-month period of orthokeratology (OK) treatment on corneal sensitivity in Chinese children and adolescents. Methods. Thirty subjects wore overnight OK lenses in both eyes for 3 months and were assessed at baseline, 1 day, 1 week, 1 month, and 3 months after the treatment. Changes in corneal sensitivity were measured by the Cochet–Bonnet (COBO) esthesiometer at the corneal apex and approximately 2 mm from the temporal limbus. Changes in refraction and corneal topography were also measured. Results. Central corneal sensitivity suffered a significant reduction within the first month of the OK treatment period but returned to the baseline level at three months (F = 3.009, P=0.039), while no statistically significant difference occurred in temporal sensitivity (F = 2.462, P=0.074). The baseline of central corneal sensitivity correlated with age (r = −0.369, P=0.045). A marked change in refraction (uncorrected visual acuity, P<0.001; spherical equivalent, P<0.001) and corneal topographical condition (mean keratometry reading, P<0.001; eccentricity value, P<0.001; Surface Regularity Index, P<0.001) occurred, but none of these measurements were correlated with corneal sensitivity. Conclusions. A 3-month period OK treatment causes a reduction in central corneal sensitivity in Chinese children and adolescents but with a final recovery to the baseline level, which might be because neuronal adaptation occurred earlier in children and adolescents than in adults.

scholarly journals Dietary patterns and their associations with childhood obesity in China

2015 ◽  
Vol 113 (12) ◽  
pp. 1978-1984 ◽  
Author(s):  
Jiguo Zhang ◽  
Huijun Wang ◽  
Youfa Wang ◽  
Hong Xue ◽  
Zhihong Wang ◽  
...  
Keyword(s):  
Children And Adolescents ◽  
Dietary Patterns ◽  
Dietary Pattern ◽  
Chinese Children ◽  
Nutrition Survey ◽  
Fast Foods ◽  
Health And Nutrition ◽  
Limited Applicability ◽  
The Impact ◽  
Chinese Children And Adolescents

Dietary patterns represent the combined effects of foods, and illustrate efficaciously the impact of diet on health outcomes. Some findings of previous studies have limited applicability to Chinese children due to cultural factors. The presnt study was designed to identify dietary patterns and determine their relationships with obesity among Chinese children and adolescents. Data collected from 1282 children and adolescents aged 7–17 years from the 2011 China Health and Nutrition Survey (CHNS) were used. Dietary patterns were identified using factor analysis of data from three consecutive 24-h dietary recalls. Weight and height were measured following standard methods, and BMI was calculated. Three dietary patterns were identified: modern (high intakes of milk, fast foods and eggs), traditional north (high intakes of wheat, tubers and other cereals) and traditional south (high intakes of vegetables, rice and pork). After adjusting for some confounders and total energy intake, subjects in the highest quartiles of the modern and traditional north patterns were found to have significantly greater risk of obesity (OR 3·10, 95 % CI 1·52, 6·32, and OR 2·42, 95 % CI 1·34, 4·39, respectively). In conclusion, the modern dietary pattern and the traditional north dietary pattern were associated with higher risk of obesity. Promoting healthier eating patterns could help prevent obesity in Chinese children.

scholarly journals Determinants of student’s MVPA level in school and neighborhood environment changing with age: a 12-month follow-up study in Ningxia province

2020 ◽  
Author(s):  
Wei Huang ◽  
Xiangrong Shi ◽  
Yujie Wang ◽  
Xiaoling Li ◽  
Pengpeng Gao ◽  
...  
Keyword(s):  
Physical Activity ◽  
Children And Adolescents ◽  
Influential Factors ◽  
Neighborhood Environment ◽  
School Aged Children ◽  
Sports Events ◽  
Significant Difference ◽  
The Impact ◽  
The Relationship

Abstract Background The benefits of physical activity have been identified in children and adolescents. However, the prevalence of physical inactivity in school-aged children and adolescents was high in China. Most time of students spends in neighborhood and school, and these play an important role in student’s MVPA level. Therefore, we will investigate the impact of implementing the national health promotion policy on PA behavior in school-aged children and adolescents and the effects that influence the changes in PA behavior in this study. Methods This is a longitudinal study with a 12-month follow-up. The study sample came from 2016 and 2017 Physical Activity and Fitness in China—The Youth Study, total 1611 students (aged 7–18 years) from 31 primary, junior high, and high schools were included in this study. The physical and social environment in school and neighborhood were measured by questionnaire at baseline and after 12 months. Multiple logistic regression was used to examine the relationship of influential factors and moderate- and vigorous MVPA. Results There is no significant difference in MVPA level between 2016 and 2017. Student’s attitudes to PA, neighborhood facilities, and organizations were improved significantly after 12 months. The influential factors changed after 12 months. In 2016 the top three contributors were attitude to MVPA(OR 3.08 with 95% CL 1.22, 7.76), neighborhood PA facilities(OR 1.52, 95% CL 1.24, 1.86) and age(OR 1.38, 95% CL 1.13, 1.69), and in 2017 the top three factors were student’s attitude to PA(OR 4.28, 95%CL 1.788,10.245), school extra time for PA(OR 2.29, 95% CL 1.56, 3.36) and the frequency of sports events in neighborhood(OR 1.84, 95% CL 1.34, 2.53). Conclusions The single health policy is not effective for student’s MVPA promotion. There may be some factors mediate the relationship between neighborhood environment and MVPA level with age and grade increasing. In the future, more studies are needed to explore the change of influential factors and mediators with age. The findings of this study may provide some evidence for future policy-making.

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