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Updated: May 31, 2026

Assessment of Child Anthropometry in a Large Epidemiologic Study
Published on: February 2, 2017
Correlation between peak flow and body mass index in obese and non-obese children in Kocaeli, Turkey
Zuhal Gundogdu1, Nihal Eryilmaz
1Kocaeli Metropolitan Municipality Hospital, 41100, Kocaeli, Turkey. z.gundo@gmail.com
Insights
Obese children have lower peak expiratory flow (PEF) than non-obese children. This finding highlights obesity as a risk factor for reduced lung function in children, emphasizing prevention.
Area of Science:
- Pediatric Health
- Respiratory Medicine
- Obesity Research
Background:
- Childhood obesity is a growing public health concern.
- Obesity may impact various physiological functions, including respiratory capacity.
Purpose of the Study:
- To examine the association between Body Mass Index (BMI) and Peak Expiratory Flow (PEF) in children aged 6-14.
- To determine if obesity affects lung function in pediatric populations.
Main Methods:
- Cross-sectional study involving 1,439 children during public health screenings.
- Children categorized as non-obese or obese based on age- and sex-specific BMI percentiles (>95th percentile).
- Comparison of PEF and BMI across different age-sex-BMI percentile groups.
Main Results:
- Obese children exhibited significantly lower PEF values compared to non-obese children.
- Significant differences in PEF were observed between genders.
- Higher BMI was associated with reduced PEF.
Conclusions:
- Elevated BMI in children is linked to diminished lung function (lower PEF).
- Obesity represents a significant risk factor for reduced airflow and respiratory health in children.
- Preventing childhood obesity is crucial for mitigating future respiratory issues.
Aims:
To investigate the relationship between body mass index (BMI) and peak expiratory flow (PEF) values in children between the ages of 6 and 14 years.
Methods:
Data were collected from 1,439 children during public health screening. Each child was classified on the basis of age- and sex-specific BMI percentile as non-obese or obese (BMI >95th percentile). PEF and BMI were compared among age-sex-BMI percentile groups.
Results:
PEF values were lower in obese children than in non-obese children. There were also significant differences between girls and boys.
Conclusions:
The association of higher BMI with lower PEF may indicate that obesity is an important risk factor for reduced airflow or lung function in children. These findings emphasise the importance of the prevention of obesity in children and adolescents in order to avoid possible future respiratory problems.
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