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Relevant factors influencing flatfoot in preschool-aged children
Kun-Chung Chen1, Chih-Jung Yeh, Li-Chen Tung
1Institute of Medicine, Chung Shan Medical University, Taichung City, 402, Taiwan.
Insights
Flatfoot prevalence decreases with age in young children. Bilateral flatfoot risk is linked to age, obesity, gender, joint laxity, and W-sitting, while unilateral flatfoot has different risk factors.
Area of Science:
- Pediatric Orthopedics
- Biomechanical Analysis
- Child Development
Background:
- Flatfoot is a common condition in preschool-aged children, with varying risk factors.
- Understanding the influence of intrinsic and extrinsic factors on flatfoot development is crucial for early intervention.
Purpose of the Study:
- To investigate the association between age, gender, obesity, joint laxity, and W-sitting habit with flatfoot in preschool children.
- To differentiate risk factors for unilateral versus bilateral flatfoot.
Main Methods:
- A cross-sectional study involving 1,598 preschool children (3-6 years old) in Taiwan.
- Children were categorized into normal, unilateral flatfoot, and bilateral flatfoot groups.
- Multinomial logistic regression analysis was employed to identify influencing factors.
Main Results:
- Flatfoot prevalence significantly decreased with age; bilateral flatfoot was 54.5% in 3-year-olds versus 21% in 6-year-olds.
- Bilateral flatfoot risk increased with obesity and was higher in boys, decreasing with age.
- Higher joint laxity and W-sitting habit were associated with increased risk in both flatfoot groups; age and obesity were not significant for unilateral flatfoot.
Conclusions:
- Age, gender, obesity, joint laxity, and W-sitting are significantly associated with bilateral flatfoot in preschool children.
- Unilateral flatfoot presents different risk profiles compared to normal feet and bilateral flatfoot, warranting further investigation.
Abstract:
The aim of this study was to discuss the influence of age, gender, obesity status, joint laxity, and the W-sitting habit on flatfoot in preschool-aged children. A total of 1,598 children (833 boys and 765 girls) between 3 and 6 years of age from kindergartens in the central area of Taiwan were studied. The children were divided into a normal group (n = 733), a unilateral flatfoot group (n = 266), and a bilateral flatfoot group (n = 599), and a multinomial logistic regression model was used to analyze the data. The prevalence of flatfoot decreased significantly with increasing age: 54.5% of 3-year-old but only 21% for 6-year-old children had bilateral flatfoot. In the bilateral flatfoot group, the risk decreased with increased age, increased with increasing weight beyond the normal range, and was higher for boys than girls. Age and obesity status were not significantly influential in the unilateral flatfoot group. Children with higher joint laxity and a habit of W-sitting also experienced higher risk in both flatfoot groups. In conclusion, this study demonstrates a significant association of age, gender, obesity status, joint laxity, and the W-sitting habit with the bilateral flatfoot in preschool-aged children. Children with unilateral flatfoot differ from those with normal feet and bilateral flatfoot. It is suggested that the unilateral flatfoot deserves special attention in future studies.
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