Abstract
Background
The prevalence of childhood obesity is increasing in low-middle income countries like India. Built environment features such as walkability can influence weight-related outcomes but data from developing countries are scanty.
Objective
To develop population level walkability index in urban Bengaluru, and examine its association with indices of childhood obesity in school children.
Study Design
Nested cross-sectional study based on a cohort.
Participants
Normal healthy children aged 6 to 15 years from urban schools in Bengaluru. The children were stratified into different land use classification such as residential, commercial and open space based on residential address.
Methods
Anthropometric data, body composition data, measured using air displacement plethysmography.
Outcomes
Walkability index derived using residential density, street connectivity and land-use mix environment variables.
Results
The mean (SD) of age, body mass index (BMI), BMI z-score and percentage body fat (% Body fat) of 292 (50% boys) children were 10.8 (2.9) year, 17.4 (3.3) kg/m2, −0.27 (1.35) and 20.9% (8.8), respectively. The mean (SD) walkability index was 16.5, which was negatively associated with BMI (slope −0.25 and -0.08) and percentage body fat (slope −0.47 and −0.21) for age 5 and 10 years, respectively in children, but the effects decreased with increasing age.
Conclusions
The findings of this pilot study suggest that the neighborhood walkability may be associated with the obesity indices in younger children. Future longitudinal studies are needed to understand how built environment affects health and body composition of children in India and other low-middle income countries.
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Acknowledgements
We would like to acknowledge Sensing Local foundation, Cooke Town, Bengaluru, India for extracting information from GIS that were required for development of walkability index.
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IEC, St John’s Medical College Institutional Ethical committee; No. 177/2008, dated Feb 05, 2009.
Contributors
DP: data acquisition, preliminary analysis, interpretation of data, writing original draft; SG: methodology, formal analysis, interpretation of data, writing-review and editing; RK: conceptualization, supervision, analysis, interpretation of data, writing — critical reviewing and editing.
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None stated.
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Puttaswamy, D., Ghosh, S. & Kuriyan, R. Neighborhood Walkability Index and Its Association With Indices of Childhood Obesity in Bengaluru, Karnataka. Indian Pediatr 60, 113–118 (2023). https://doi.org/10.1007/s13312-023-2807-1
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DOI: https://doi.org/10.1007/s13312-023-2807-1