The influence of the trajectory of obesity indicators on the age of pubertal onset and pubertal tempo in girls: A longitudinal study in Chongqing, China

Xi, Xuan; Wu, Di; Wu, Wenyi; Zhou, Yuanke; Zhang, Qin; Wang, Yujie; Wang, Hong; Liu, Qin

doi:10.3389/fpubh.2023.1025778

Cited by 3 publications

(1 citation statement)

References 30 publications

(34 reference statements)

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“…Therefore, this study adopted purpose-based sampling in the district and selected four primary schools in the district of Chongqing according to the differences in their geographical locations. A detailed description of this cohort study has been reported previously ( 24 ). The study was approved by the Medical Ethics Review Committee of Chongqing Medical University.…”

Section: Methodsmentioning

confidence: 99%

Validity of self-assessment pubertal Tanner stages by realistic color images and Pubertal Development Scale in a longitudinal cohort study

Luo,

Wu,

Tian

et al. 2024

Front. Pediatr.

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IntroductionTo date, the reliability of pubertal development self-assessment tools is questioned, and very few studies have explored the comparison between these tools in longitudinal studies. Hence, this study aimed to examine the reliability of pubertal development self-assessment using realistic color images (RCIs) and the Pubertal Development Scale (PDS) in a longitudinal cohort study.MethodsOur longitudinal study recruited 1,429 participants (695 boys and 734 girls), aged 5.8–12.2 years old, in Chongqing, China. We conducted two surveys, 6 months apart. Tanner stages were examined by trained medical students at each visit. RCIs and PDS scores were used to self-assess puberty at each visit. Agreement between physical examination and self-assessment was determined using weighted kappa (wk), accuracy, and Kendall rank correlation.ResultsThe concordance of puberty self-assessment using RCIs at baseline and the first follow-up was almost perfect in girls and boys, wk >0.800 (p < 0.001). At baseline, the concordance of genital development self-assessment using RCIs was fair in boys, wk = 0.285 (p < 0.001), and that of boys’ pubic hair development self-assessment using RCIs was poor, wk = 0.311 [95% confidence interval (CI) −0.157 to 0.818]. The wk of the PDS was less than 0.300, except for breast development. The reliability and validity of the PDS in this study population were low, and the consistency of the PDS was not good.ConclusionsThe concordance of RCIs is better than that of the PDS. Pubertal development self-assessment using RCIs is reliable, while the reliability and validity of the PDS are unacceptable. Therefore, RCIs are recommended as a reliable pubertal development self-assessment tool to measure pubertal development for large-scale epidemiological investigations and long-term longitudinal studies in China.

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Section: Methodsmentioning

confidence: 99%

Validity of self-assessment pubertal Tanner stages by realistic color images and Pubertal Development Scale in a longitudinal cohort study

Luo,

Wu,

Tian

et al. 2024

Front. Pediatr.

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Cohort Profile: Chongqing Pubertal Timing and Environment Study in China with 15 Follow-Ups since 2014

Wu,

Luo,

Zhang

et al. 2024

Future

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Background: Puberty is a life milestone that marks the transition from childhood to adulthood. An ambispective Chongqing Pubertal Timing (CQPT) cohort was started in 2014 to understand pubertal timing and identify environmental risk factors. Methods: A total of 1429 children and adolescents were recruited and have been followed up once every 6 months for 8 years in a district of Chongqing, China. Data were collected via questionnaires for social and family environment, health conditions, gestational and maternal information, and in-person physical examinations by trained medical school graduate students in follow-ups. Environmental exposures of polycyclic aromatic hydrocarbons (PAHs), neonicotinoids, and heavy metals in urine samples were measured at different time points. Results: The mean ages at pubertal onset were 10.20 for thelarche, 11.62 for pubic hair development, and 11.84 for menarche in girls, and 11.16 for genital development, 11.66 for testicular enlargement, and 12.71 for first spermatorrhea in boys. Four OH-PAHs were associated with delayed timing of menarche, thelarche, pubic hair, and axillary hair development in girls, and thiacloprid was found to potentially impact genital stages in boys and axillary hair development in girls. Conclusions: We built a cohort to provide evidence of regional pubertal timing of boys and girls and the significant environmental factors. Further health outcomes, especially mental health and women’s health and its long-term health implications, will be followed.

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Obesity alters inflammatory response in the pathology of asthma (Review)

Qin

Yang

et al. 2023

Int J Mol Med

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The influence of the trajectory of obesity indicators on the age of pubertal onset and pubertal tempo in girls: A longitudinal study in Chongqing, China

Cited by 3 publications

References 30 publications

Validity of self-assessment pubertal Tanner stages by realistic color images and Pubertal Development Scale in a longitudinal cohort study

Validity of self-assessment pubertal Tanner stages by realistic color images and Pubertal Development Scale in a longitudinal cohort study

Cohort Profile: Chongqing Pubertal Timing and Environment Study in China with 15 Follow-Ups since 2014

Obesity alters inflammatory response in the pathology of asthma (Review)

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