Asociación entre el índice de masa corporal y la talla desde el nacimiento hasta los 5 años en preescolares chilenos / Association between body mass index (BMI) and height from birth to 5 years in Chilean preschool children
Rev. méd. Chile
; 139(5): 606-612, mayo 2011. ilus, tab
Article
in Es
| LILACS
| ID: lil-603097
Responsible library:
BR1.1
ABSTRACT
Background:
It has been shown that excess weight gain during childhood is associated with a greater risk of obesity; this relationship may be mediated by growth in height.Aim:
To quantify the associations between z scores for body mass index (BMIZ) and height for age (HAZ) from birth to 5 years of age and to assess how this association varies according to age and adiposity. Material andMethods:
Weight and height were recorded at 11 occasions from birth on a cohort of1089 Chilean five year-old children with a birth weight > 2500 g. BMI, BMIZ, HAZ and prevalence of obesity were calculated. We determined the cross-sectional association between BMIZ and HAZ for the total sample and by 3 BMI Z categories, using Pearson correlation. We determined the probability of obesity according to four HAZ categories.Results:
Obesity increased continuously reaching approximately 16 percent at 5 years. Stunting was virtually nonexistent. No association between BMIZ and HAZ was observed at birth, while at 1 and 2 months, leaner infants had lower stature. No association between theseparameters was observed between 6-24 months, while after 3 years, a clear relationship was observed.Conclusions:
The probability of a preschool child of being obese is less than 10 percent with a HAZ is < 0. Nevertheless, children with heights above the median (even within the normal range) have an increased risk of obesity, especially after 3 y of age. Between 0-5 years, the relationship between weight and height varies by age and adiposity.Key words
Full text:
1
Index:
LILACS
Main subject:
Body Height
/
Body Mass Index
/
Obesity
Type of study:
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Limits:
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
/
Newborn
Country/Region as subject:
America do sul
/
Chile
Language:
Es
Journal:
Rev. méd. Chile
Journal subject:
MEDICINA
Year:
2011
Type:
Article
/
Project document