Related Experiment Video
Updated: Jul 6, 2026

Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
Published on: January 29, 2018
Growth and sexual maturation of low birth weight infants at early adolescence
Sudha Chaudhari1, Madhumati Otiv, Mahendra Hoge
1Department of Pediatrics, KEM Hospital, Pune, Maharashtra, India. kemhrc@vsnl.com
Insights
Children born with low birth weight (LBW) who were born preterm and small for gestational age (SGA) showed reduced growth and lower IQ scores at 12 years. Maternal factors significantly influenced offspring growth.
Area of Science:
- Pediatrics
- Neonatology
- Growth and Development
Background:
- Low birth weight (LBW) infants require long-term monitoring for growth and developmental outcomes.
- Understanding the impact of prematurity and SGA on childhood development is crucial for early intervention.
Purpose of the Study:
- To evaluate the growth and sexual maturity of non-handicapped children born with a birth weight less than 2000 g at 12 years of age.
- To identify factors influencing growth and cognitive development in this cohort.
Main Methods:
- Prospective cohort study of 180 LBW infants followed from birth (1987-1989) to 12 years.
- Measurements included height, weight, head circumference, sexual maturity (Tanner score), and IQ (Weschler Scale).
- Parental anthropometrics were recorded; menarche age reported by parents.
Main Results:
- Preterm SGA children exhibited significantly reduced height, weight, and head circumference compared to controls.
- No significant differences in sexual maturity or age of menarche were observed.
- A correlation between head circumference and IQ was found, with preterm SGA children having the lowest mean IQ.
- Maternal height and weight were significant determinants of offspring height and weight at 12 years.
Conclusions:
- Preterm SGA children experience impaired physical growth and cognitive development.
- Maternal anthropometrics play a vital role in determining offspring growth outcomes.
- Early identification and support for LBW infants, particularly those born preterm SGA, are essential.
Objective:
To assess the growth and sexual maturity of non-handicapped children with birth weight less than 2000 g at 12 years.
Design:
Prospective cohort study.
Setting:
Infants discharged from a Neonatal Special Care Unit of a referral hospital with birth weight less than 2000 g between 1987-1989 and followed up till the age of 12 years.
Methods:
The height, weight and head circumference was measured. Sexual maturity was determined by Tanners score and age of menarche in girls was reported by parents. Parental height and weight was recorded. Intelligence quotient was determined by Weschslers Intelligence Scale.
Results:
The cohort of 180 low birth weight (LBW) infants (birth weight less than 2000 g) was divided into 3 groups according to their gestation - preterm SGA (n=73), full term SGA (n=33) and preterm AGA (n=74). Ninety full term AGA infants served as controls. Preterm SGA children had significantly less height (mean deficit 5.8 cm), weight and head circumference (P<0.001). There was no significant difference in sexual maturity and onset of menarche between the study group and controls. There was a correlation between head circumference and IQ and preterm SGA children had the lowest mean IQ (85.4 +/- 17.7). Mothers height contributed 14% variance to a total variance of 25.3% for Z score of height at 12 years. Mothers weight contributed a variance 21.1% to a total variance of 29.4% for Z score of weight.
Conclusion:
Preterm SGA children were shorter, lighter and had the smallest head circumference, and also had the lowest IQ. Mothers height and weight was an important determinant of height and weight at 12 years.
Related Concept Videos
Signs of Puberty
Nature and Nurture
Cognitive Development During Adolescence
Psychosexual Stages of Personality: Latency
The latency period is not considered...
Changes in the Appendicular Skeleton with Age
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
Socioemotional Experience and Gender Development

