Association between the onset age of puberty and parental height (original) (raw)
Related papers
Early Puberty and its Effect on Height in Young Saudi Females: A Cross-Sectional Study
Pediatrics & Therapeutics, 2015
Background: Linear growth in females is influenced by many factors, one of them is puberty. Due to the worldwide downward trend in age of menarche, early puberty could be one of the causative factors of short stature. Objective: The study was aimed at finding out the effect of early puberty on final height and to detect deviation from the target height in young females. The age group selected for the study, ranges from 6-14 years, living in Jeddah, Saudi Arabia. Methods: This study was carried out in Jeddah for the complete month of July 2014. For the conduction of this study, a cross sectional study design was used. The total sample size was 586 young females selected from different areas in Jeddah. A manual height measuring tape and board was used to measure the height to the nearest value of 0.5 cm. Pubertal staging was done using the Tanner stage and the relevant data and information was gathered and assembled by the help of a questionnaire. For the analysis of data in this study, Multiple Linear Regression and Pearson's Correlation Coefficient were used. Results: Mean of child's final height of 149.4 cm +/-9.5, in comparison to the mean of their target height of 157.8 +/-6.4, shows an 8.4 cm difference. Moreover, the correlation coefficient analysis showed a significant association between child's height in cm and age of menarche for child with (p-value = 0.001) and (r) = 0.349. This indicates a positive relation between the two variables. Conclusion: The menarcheal age and height are significantly related; the early onset of the signs of puberty or menarche is associated with a shorter height than the target height.
GENDER DIFFERENCES AND SECULAR TRENDS IN HEIGHT, PATTERN OF GROWTH AND MATURATION DURING PUBERTY
The "Körmend Growth Study" (KGS) was a series of cross-sectional anthropological surveys repeated in every 10 years in a small Hungarian town for more than 50 years. In this paper the authors are reporting data concerning a special period of childres development, the puberty and pre-puberty period. Growth patterns of children (aged 3–18 years) were examined in 1958, 1968, 1978, 1988, 1998 and 2008 and were compared. Significant gender differences and secular trends were observed in the growth pattern of 9-15 year old children. Pubertal girls were temporarily taller than their male counterparts. Physical maturation appeared in an earlier age, and lasted for a shorter duration. This paper also focuses on changes in ages at menarche. In the frame of the KGS, data of age at menarche were collected with the "status quo" method, and was analyzed using probit analysis. In the first period of the study positive secular trends were observed in Körmend but by the end of th...
American Journal of Human Biology, 2001
This paper analyzed the intensity and duration of height growth during puberty in boys and girls in relation to rhythm of maturation. A longitudinal clinical follow-up between ages of 10 and 20 years, was carried out in a sample of 251 children grouped according to age at pubertal onset: boys (genital stage 2) at the ages of 11 (n ס 28), 12 (n ס 38), 13 (n ס 42), and 14 (n ס 27); and girls (breast stage 2) at the ages of 10 (n ס 37), 11 (n ס 47), 12 (n ס 19), and 13 (n ס 13). Height was measured annually. Testicular volume and genital development were assessed in boys, and breast development was assessed in girls. There were significant differences (P < 0.001) in height at the age of pubertal onset among maturity groups. Late maturers were taller than early maturers (r ס 0.49, P < 0.001 for girls; r ס 0.38, P < 0.001 for boys). However, final heights did not differ according to age of onset in either sex. In boys, later onset of puberty was associated with a smaller pubertal height gain (r ס −0.60, P < 0.001) and a shorter period of pubertal growth (r ס −0.61, P < 0.001). Equally in girls, earlier onset of puberty was associated with a greater pubertal height gain (r ס −0.68, P < 0.001) and a longer period of pubertal growth (r ס −0.59, P < 0.001). In conclusion, age of pubertal onset does not affect final height attained in both sexes, since there is an inverse compensatory phenomenon in both sexes between height at pubertal onset and the intensity and duration of pubertal growth. Am.
Adult height variants affect birth length and growth rate in children.
Previous studies identified 180 single nucleotide polymorphisms (SNPs) associated with adult height, explaining ∼10% of the variance. The age at which these begin to affect growth is unclear. We modelled the effect of these SNPs on birth length and childhood growth. A total of 7768 participants in the Avon Longitudinal Study of Parents and Children had data available. Individual growth trajectories from 0 to 10 years were estimated using mixed-effects linear spline models and differences in trajectories by individual SNPs and allelic score were determined. The allelic score was associated with birth length (0.026 cm increase per 'tall' allele, SE 5 0.003, P 5 1 3 10 215 , equivalent to 0.017 SD). There was little evidence of association between the allelic score and early infancy growth (0 -3 months), but there was evidence of association between the allelic score and later growth. This association became stronger with each consecutive growth period, per 'tall' allele per month effects were 0.015 SD (3 months -1 year, SE 5 0.004), 0.023 SD (1 -3 years, SE 5 0.003) and 0.028 SD (3 -10 years, SE 5 0.003). By age 10, the mean height difference between individuals with ≤170 versus ≥191 'tall' alleles (the top and bottom 10%) was 4.7 cm (0.8 SD), explaining ∼5% of the variance. There was evidence of associations with specific growth periods for some SNPs (rs3791675, EFEMP1 and rs6569648, L3MBTL3) and supportive evidence for previously reported age-dependent effects of HHIP and SOCS2 SNPs. SNPs associated with adult height influence birth length and have an increasing effect on growth from late infancy through to late childhood. By age 10, they explain half the height variance (∼5%) of that explained in adults (∼10%).
A new type of pubertal height reference based on growth aligned for onset of pubertal growth
Journal of Pediatric Endocrinology and Metabolism, 2020
Objectives Growth references of today traditionally describe growth in relation to chronological age. Despite the broad variation in age of pubertal maturation, references related to biological age are lacking. To fill this knowledge gap, we aimed to develop a new type of pubertal height reference for improved growth evaluation during puberty, considering individual variation in pubertal timing. Methods Longitudinal length/height measures were obtained from birth to adult height in 1,572 healthy Swedish children (763 girls) born at term ∼1990 to nonsmoking mothers and Nordic parents, a subgroup of GrowUp1990Gothenburg cohort. A total height reference was constructed from Quadratic-Exponential-Puberty-Stop (QEPS)-function-estimated heights from individual height curves that had been aligned for time/age at onset of pubertal growth (5% of P-function growth). References that separated growth into specific pubertal heightSDS (P-function growth) and basic heightSDS (QES-function growth) ...
The relationship between infancy growth rate and the onset of puberty in both genders
Pediatric Research
BACKGROUND: In this study, we examined the hypothesis that weight gain and linear growth during the first years of life influence the onset of puberty both in girls and in boys. METHODS: A cohort of 157 healthy children, aged 6-9 years, was evaluated and their growth patterns were analyzed retrospectively. Repeated measures mixed model was used to examine the longitudinal anthropometric data. RESULTS: Girls with pubertal signs were heavier than their peers starting at 9 months of age (P = 0.02), and the difference became more evident over time (Po0.001). Accelerated weight gain between 6 and 15 months of age was found to increase the odds of having a pubertal sign at the study visit (odds ratio (OR) = 34.5) after adjusting for birth weight, gestational age and current age, height, weight, and BMI (P = 0.004). Anthropometric indices of boys with or without pubertal signs were not significantly different at the study visit, but boys with accelerated height gain between 9 and 15 months of age were more likely to have pubertal signs (OR = 15.8) after adjusting for birth weight, gestational age and current age, height, weight, and BMI (P = 0.016). CONCLUSION: Early growth acceleration might be important for the timing of puberty in both genders.
Scientific reports, 2016
Height variation is known to be determined by both genetic and environmental factors, but a systematic description of how their influences differ by sex, age and global regions is lacking. We conducted an individual-based pooled analysis of 45 twin cohorts from 20 countries, including 180,520 paired measurements at ages 1-19 years. The proportion of height variation explained by shared environmental factors was greatest in early childhood, but these effects remained present until early adulthood. Accordingly, the relative genetic contribution increased with age and was greatest in adolescence (up to 0.83 in boys and 0.76 in girls). Comparing geographic-cultural regions (Europe, North-America and Australia, and East-Asia), genetic variance was greatest in North-America and Australia and lowest in East-Asia, but the relative proportion of genetic variation was roughly similar across these regions. Our findings provide further insights into height variation during childhood and adolesc...
Children
Height velocity (HV) growth charts constructed from longitudinal studies are scarce as they have inherent difficulties, e.g., time, and costs. These difficulties can be partly overcome by a mixed-longitudinal study that covers the entire age range within 3–6 years. To construct HV charts of Greek children and to estimate the milestones of the adolescent growth spurt (AGS), i.e., the onset of AGS (take-off), peak HV, and total pubertal growth (TPG), we performed a mixed longitudinal study in 1514 Greek schoolchildren (6–18 years) with height measurements every 6 months during three schoolyears. We constructed HV charts for boys and girls. Take-off occurs earlier in girls, and, in both sexes, it precedes by 1–1.5 years the appearance of physical signs of puberty. PHV in boys occurs at 12.61 years and in girls at 10.93 years. At take-off, boys are 5 cm taller than girls and TPG for boys is 35.8 cm and for girls 27.3 cm. We constructed HV charts plotted by age, irrespective of pubertal ...
American Journal of Human Biology, 1996
The effect of determinants of growth in body length from birth to 6 years of age were studied in a longitudinal sample of 59 male and 70 female infants from Lublin, Poland. Structural equation modeling (SEM) was used to study the effects of gender of the child, occupation of the parents, the educational level of the parents, per capita income, the stature of the parents, and the weight of the mother on body length at birth and at 1, 2, 3, and 6 years of age. Significant sex differences in length were observed a t birth and during the first 2 years of postnatal life, but not in the period between 3 and 6 years of age. Socioeconomic status (SES), expressed as a latent variable in the SEM, was not related to body length at birth but was significantly related t o body length during infancy and, to a lesser extent, to body length during childhood. Paternal stature was not related to body length a t birth and during infancy, but was significantly related to body length from 3 years onwards. Maternal stature was significantly related to body length a t birth and at 1 year of age, but not thereafter, while maternal weight was significantly related to body length at birth only. c 19~6: Wiley-Liss, Inc.