Bone age status of 6 231 children and adolescents in Changchun area

SUN Jiaxiang; SHI Zhong; CAO Lianfu; SUN Liping

doi:10.11852/zgetbjzz2024-1495

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Chinese Journal of Child Health Care ›› 2026, Vol. 34 ›› Issue (4) : 427-432. DOI: 10.11852/zgetbjzz2024-1495

Health Promotion

Bone age status of 6 231 children and adolescents in Changchun area

SUN Jiaxiang¹,SHI Zhong²,CAO Lianfu²,SUN Liping²

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Abstract

Objective To analyze the characteristics of bone age (BA) distribution and its key influencing factors—specifically gender, age, and nutritional status—among children and adolescents in the Changchun region, in order to provide data support for growth assessment and intervention strategies for related disorders. Methods A cross-sectional study was conducted involving children and adolescents aged 2 - 18 years who visited the Department of Child Health Care at the Children′s Medical Center, Affiliated Hospital of Changchun University of Chinese Medicine, between January 2021 and June 2024. Physical examination and BA data were collected. BA was assessed using the China 05 method, and the bone age difference (BAD) was calculated as BA minus chronological age (CA). Multivariate logistic regression analysis was employed to identify influencing factors. Results A total of 6 231 participants were enrolled. The prevalence of significant BA deviation (|BAD|≥1 year), indicating either advanced or delayed development) was 37.63% (2 345/6 231).The overall mean BAD was (0.17±1.12) year. Significant gender differences in skeletal development were observed, with females exhibiting higher BAD values than males (t=8.501, P<0.05). Nutritional status emerged as a core influencing factor; compared to the normal-weight group, the obesity group showed a significantly increased risk of advanced bone age (OR=4.109, P<0.001), with mean BAD values reaching (1.04±1.12)years for males and (1.20±1.01) years for females. Age stratification analysis indicated that after age 7, BA generally exceeded chronological age (P<0.001). Conclusions Skeletal development among children and adolescents in Changchun region is significantly influenced by gender, age, and nutritional status. Generally, skeletal maturation in females precedes that in males. Overweight and obesity are identified as the primary risk factors for advanced bone age, suggesting that weight management should be prioritized as a critical component of pediatric growth and development healthcare.

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growth and development / adolescents / bone age / obesity

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SUN Jiaxiang,SHI Zhong,CAO Lianfu,SUN Liping. Bone age status of 6 231 children and adolescents in Changchun area[J]. Chinese Journal of Child Health Care. 2026, 34(4): 427-432 https://doi.org/10.11852/zgetbjzz2024-1495

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