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To assess the body mass index (BMI), percentage of body fat (PBF), and bone age of school-age children in Xuzhou city, and to explore the relationship between BMI, PBF, and bone age, so as to provide reference for promoting the health of children.
A cluster sampling method was used to select 601 students of grade three from three schools in Xuzhou from July to August 2023, questionnaire surveys and physical examinations were used to collect children’s data, and disordered multi-classification logistic regression analysis was used to explore the association between different types of BMI or PBF and bone age development.
The rates for thinness, overweight, and obesity in boys were 14.2%, 11.1%, and 19.2% respectively, in girls were 17.6%, 9.3%, and 14.0%, respectively; Multivariate logistic regression showed that after adjusting for covariates such as gender, development of secondary sexual characteristics, average monthly household income, birth weight, father’s height, and mother’s height, the risk of early bone age development was significantly increased in both the BMI obese and overweight groups compared to the BMI normal group (OR=10.10, 95%CI:4.83-21.12; OR=3.78, 95%CI:1.53-9.33); The PBF high body fat group had a significantly increased risk of early bone age development compared to the PBF normal group (OR=3.79, 95%CI:2.01-7.13); BMI obese and PBF high body fat groups are protective factors for delayed bone age development (OR=0.40, 95%CI: 0.20-0.78; OR=0.52, 95%CI:0.31-0.87).
Overweight and obese children are prone to premature bone age. It is recommended to regularly monitor weight, bone age and body composition while preventing and controlling overweight and obesity in children.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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