This study examined exposure to peer delinquency as a mediator between pubertal timing and self-reported delinquency longitudinally and whether this mediational model was moderated by either gender or maltreatment experience. Data were obtained from Time 1, 2, and 3 of a longitudinal study of maltreatment and development. At Time 1 the sample comprised 454 children aged 9-13 years. Analyses via structural equation modeling supported full mediation. Gender did not moderate this mediational relationship, but maltreatment experience did. The results show that early maturing males and females are both at risk for being exposed to peers that may draw them into delinquent behavior. In addition, the mechanism linking early pubertal timing to delinquency differs depending on maltreatment experience.
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http://dx.doi.org/10.1017/S0954579410000805 | DOI Listing |
Ann Epidemiol
January 2025
Center for Clinical Research and Prevention, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark.
Purpose: Whether breast density mediates associations between early life body size and pubertal timing with postmenopausal breast cancer is underexplored.
Methods: We studied 33,939 Danish women attending the Capital Mammography Screening Program at ages 50-69 years. Early life anthropometry and pubertal timing information came from the Copenhagen School Health Records Register.
Child Dev
January 2025
Department of Psychology and Center for Brain Science, Harvard University, Cambridge, Massachusetts, USA.
Using data from the Human Connectome Project in Development (N = 1304; ages 5-21 years; 50% male; 59% White, 17% Hispanic, 13% Black, 9% Asian), multiple measures (self-report, salivary hormones) and research designs (longitudinal, cross-sectional) were used to characterize age-related changes and sex differences in pubertal development. Both sexes exhibit a sigmoid trajectory of pubertal development; females show earlier pubertal timing and increased tempo ~9-13 years, while males show greater tempo ~14-18 years. All hormones increased with age, with sex differences in testosterone and DHEA levels and in testosterone rates of change.
View Article and Find Full Text PDFmedRxiv
December 2024
Division of Endocrinology, Department of Pediatrics, Boston Children's Hospital.
Background: In women, both earlier and later age at menarche (AAM) are associated with increased risk of coronary artery disease (CAD). This study sought to determine if the relationship of AAM with CAD and CAD risk factors differs for different underlying sources of variation in AAM - specifically, variation attributable to common genetic variants as represented by a polygenic score (PGS) vs. variation in AAM adjusted for the PGS.
View Article and Find Full Text PDFHum Reprod
January 2025
Department of Epidemiology, Brown University School of Public Health, Providence, RI, USA.
Study Question: Are empirically derived adolescent overweight/obesity phenotypes differentially associated with polycystic ovary syndrome (PCOS) in young adulthood?
Summary Answer: Self-reported PCOS diagnosis risk in young adulthood varied by empirically derived adolescent overweight/obesity phenotypes, with the highest risk observed among those in the 'mothers with obesity' and 'early puberty' phenotypes.
What Is Known Already: Overweight and obesity during puberty are postulated to promote the development of PCOS. Much of the prior literature in this area is cross-sectional and defines weight status based solely on BMI, yet emerging research suggests that not all people with overweight/obesity have the same risk for chronic health conditions, including PCOS.
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