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Assessment of Child Anthropometry in a Large Epidemiologic Study
Published on: February 2, 2017
Prevalence of obesity and extreme obesity in children aged 3-5 years
1Division of Research, Kaiser Permanente Northern California, Oakland, CA, USA; Department of Medicine, Kaiser Permanente Oakland Medical Center, Oakland, CA, USA.
Insights
Early childhood obesity is prevalent in preschool-aged children, with higher rates in boys and Hispanic children. Early recognition and intervention are crucial for effective weight management strategies.
Area of Science:
- Pediatric Health
- Public Health
- Epidemiology
Background:
- Early childhood adiposity is linked to significant long-term health consequences.
- This study investigates the prevalence and identification of obesity and severe obesity in preschool-aged children.
Purpose of the Study:
- To determine the prevalence of obesity and severe obesity in children aged 3-5 years.
- To examine racial/ethnic and sex-based differences in obesity prevalence.
- To assess provider recognition of elevated Body Mass Index (BMI) in obese 5-year-olds.
Main Methods:
- Utilized electronic medical records for 42,559 children aged 3-5 years (2007-2010).
- Classified weight status using 2000 CDC growth charts: normal/underweight (<85th percentile), overweight (85th-94th), obesity (≥95th), severe obesity (≥1.2 × 95th).
- Analyzed BMI, height, sex, and race/ethnicity; examined provider diagnosis for obese 5-year-olds.
Main Results:
- Overall obesity prevalence was 12.4% for boys and 10.0% for girls.
- Hispanic children showed the highest prevalence of obesity (18.2% boys, 15.2% girls) and severe obesity (3.3% in boys).
- Provider diagnosis was recorded for 77.9% of obese 5-year-olds, rising to 89.0% for those with severe obesity.
Conclusions:
- Obesity and severe obesity are present in children as young as 3-5 years.
- Observed race/ethnic trends in early childhood obesity mirror those in older populations.
- Highlights the necessity for early identification and tailored strategies for childhood weight management.
Background:
Early childhood adiposity may have significant later health effects. This study examines the prevalence and recognition of obesity and severe obesity among preschool-aged children.
Methods:
The electronic medical record was used to examine body mass index (BMI), height, sex and race/ethnicity in 42,559 children aged 3-5 years between 2007 and 2010. Normal or underweight (BMI < 85th percentile); overweight (BMI 85th-94th percentile); obesity (BMI ≥ 95th percentile); and severe obesity (BMI ≥ 1.2 × 95th percentile) were classified using the 2000 Centers for Disease Control and Prevention growth charts. Provider recognition of elevated BMI was examined for obese children aged 5 years.
Results:
Among 42,559 children, 12.4% of boys and 10.0% of girls had BMI ≥ 95th percentile. The prevalence was highest among Hispanics (18.2% boys, 15.2% girls), followed by blacks (12.4% boys, 12.7% girls). A positive trend existed between increasing BMI category and median height percentile, with obesity rates highest in the highest height quintile. The prevalence of severe obesity was 1.6% overall and somewhat higher for boys compared with girls (1.9 vs. 1.4%, P < 0.01). By race/ethnicity, the highest prevalence of severe obesity was seen in Hispanic boys (3.3%). Among those aged 5 years, 77.9% of obese children had provider diagnosis of obesity or elevated BMI, increasing to 89.0% for the subset with severe obesity.
Conclusions:
Obesity and severe obesity are evident as early as age 3-5 years, with race/ethnic trends similar to older children. This study underscores the need for continued recognition and contextualization of early childhood obesity in order to develop effective strategies for early weight management.
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