| Summary: | Background: Constipation is one of the most common pediatric disorders, especially in developed population, which categorized to organic or functional (non-organic) constipation. Furthermore, obesity is a growing chronic pediatric problem that could cause any compromise in weight and height. The aim of this study is the evaluation of probable relation between obesity and pediatric functional constipation. Methods: This study was conducted as a case-control investigation on 2-14-years-old children those referred to Baqiyatallah University clinic during 2009-2011. The constipated children with organic causes were excluded. The control group of children was those who had not any disorders affecting on height and weight. Quantitative variables were expressed by mean and standard deviation and the correlation was tested with chi2 through SPSS version 17. Results: A total of 259 children (male 51.7%) consisting 124 cases and 135 controls were enrolled. The mean age in constipated and normal children was 69.47 ± 35.03 and 74.15 ± 39.68, respectively. BMI over 95% in the control group was 11.9% and in the constipated group was 17.7% that the difference was not statistically significant either (P = 0.188). The only significant association was found between obesity and the duration of constipation and also age (P = 0.008, 0.042, respectively). Conclusion: Although we found a significant relationship between duration of constipation and obesity, there was not a clear association between obesity and presence of constipation. Furthermore, we suggest extended cohort or clinical trial study regarding to the regional nutritional and growth patterns to confirm weight decrease or increase the effect on defecation.
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