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Updated: Jul 20, 2026

Assessment of Child Anthropometry in a Large Epidemiologic Study
Published on: February 2, 2017
Percentile curves for body-mass index of Punjabi infants
1Advanced Pediatrics Center, Postgraduate Institute of Medical Education and Research, Chandigarh.
Insights
This study tracked Body Mass Index (BMI) in Punjabi infants, finding a rapid increase in the first six months, followed by stabilization. These growth patterns differ from Western infants, offering a new reference for infant adiposity assessment.
Area of Science:
- Pediatrics
- Human Growth and Development
- Nutritional Science
Background:
- Establishing normative growth data is crucial for assessing infant health.
- Body Mass Index (BMI) is a key indicator of adiposity in infants.
- Understanding population-specific growth patterns is essential for accurate interpretation.
Purpose of the Study:
- To determine the percentile distance growth pattern of Body Mass Index (BMI) in Punjabi male and female infants.
- To compare infant BMI growth trajectories between sexes and with Western populations.
- To provide reference percentile grids for assessing infant adiposity in the first year of life.
Main Methods:
- A longitudinal study design was employed.
- 154 Punjabi infants (86 male, 68 female) aged 0-12 months were recruited from a Growth Clinic.
- Nude body weight and crown-heel length were measured monthly by a single investigator.
Main Results:
- Mean BMI at birth was 12.2 kg/m² for males and 12.5 kg/m² for females, increasing to 16.5 kg/m² for both sexes by 12 months.
- Infant BMI showed a rapid increase from birth to approximately six months, followed by a plateau until 12 months.
- These BMI trends differed from Western infants, who exhibited a continuous increase throughout the first year; sex differences were not significant.
Conclusions:
- The study provides percentile grids for BMI in Punjabi infants, representing a healthy, well-nourished population.
- These grids can be utilized to evaluate the adiposity status of male and female infants during their first year.
- The findings highlight population-specific variations in infant BMI growth patterns.
Objective:
To study percentile distance growth pattern of Body Mass Index (BMI) of Punjabi male and female infants.
Design:
Longitudinal.
Setting:
Growth Clinic.
Subjects:
154 Punjabi infants (Male 86; Female 68), aged birth-12 months.
Follow-Up:
Nude body weight and crownheel length of all babies at birth and whereafter, were measured at monthly age intervals with time tolerance to +/-3 days by the same investigator upto 12 months of life.
Results:
Mean (+/- SD) values for BMI measured 12.2 +/- 1.40 kg/m2 and 16.5 +/- 1.40 kg/m2 at birth and 12 months, respectively in male infants. The corresponding figures for female infants were 12.5 +/- 1.60 kg/ m2 and 16.5 +/- 1.50 kg/m2. A rapid increase in BMI values amongst infants of both sexes between birth to about six months followed by flattening of curves upto 12 months of age indicates an age dependent nature of BMI during first half of infancy in comparison to latter half during which these demonstrated stable trend. These findings are in contrast to those of the western infants who showed a regular increase in BMI throughout the first year of life. Sex differences were not significant at majority of the age levels.
Conclusions:
Percentile grids presented for BMI represent a normal, healthy and well-nourished infant population which can be used to assess the adiposity status of infants of the two sexes during the first year of life.
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