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Parental body mass index: a predictor of childhood obesity?
1Department of Community, Occupational and Family Medicine, National University of Singapore.
Insights
Parental body mass index (BMI) significantly predicts childhood obesity in Chinese children. Obese children were more likely if one or both parents had a BMI of 25 or higher, especially the mother.
Area of Science:
- Pediatrics
- Public Health
- Genetics
Background:
- Childhood obesity is a growing global health concern.
- Parental factors, including body mass index (BMI), are recognized as significant contributors to childhood obesity.
- Understanding these familial links is crucial for developing effective prevention strategies.
Purpose of the Study:
- To investigate the association between parental body mass index (BMI) and the prevalence of obesity in Chinese children.
- To determine if parental BMI is a predictive factor for childhood obesity.
- To explore the relationship between maternal and paternal BMI and childhood obesity risk.
Main Methods:
- Cross-sectional study involving 210 Chinese children aged 3-16 years and their biological parents.
- Statistical analysis using logistic regression and proportional hazards models.
- Body mass index (BMI) was calculated as weight (kg) divided by height squared (m²).
Main Results:
- A parental BMI of 25 or higher was significantly associated with increased odds of childhood obesity.
- Families with one parent having a BMI ≥ 25 had 3.7 times higher odds of an obese child.
- Families with two parents having a BMI ≥ 25 had 5 times higher odds of an obese child.
- Childhood obesity showed a stronger correlation with maternal BMI than paternal BMI.
- Perception of overweight and desire for weight loss in obese children's parents were notably low.
Conclusions:
- Parental BMI is a significant predictor of childhood obesity in the studied Chinese population.
- Maternal BMI appears to have a stronger influence on childhood obesity than paternal BMI.
- Low parental awareness and desire for intervention highlight a critical gap in addressing childhood obesity.
Abstract:
Cross-sectional data of 210 Chinese children aged three to 16 years, of whom 29 (13.8%) were obese, and their biological parents were statistically assessed whether the body mass index (BMI = weight/height2) of the parents were predictive of childhood obesity. Using the logistic regression and proportional hazards models to predict the probability of obesity and to control for potential confounding due to the age and sex of the children, families with one parent having a BMI score of 25 or higher were 3.7 times, and families with two such parents were five times more likely to have an obese child than families with no such parent. Childhood obesity was more markedly correlated with the mother's BMI than with the father's BMI. These findings were all stochastically significant (p < 0.05) inspite of the modest sample size. One in two parents with an obese child did not perceive their child to be overweight and 62% of the parents with an obese child did not want their child to lose weight.