Correlation of Sacral Ratio and Urinary Tract Infection in Children

Fahimeh Ehsanipour1, Zahra Movahedi2, Leila Taherinia3, Samileh Noorbakhsh1, *
1 Department of Pediatric Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
2 Department of Pediatric Infectious Diseases, Qom University of Medical Sciences and Health Services, Qom, Iran
3 Tehran University of Medical Sciences,Tehran, Iran

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Creative Commons License
© 2018 Kandarini et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Department of Pediatric Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran, Tel: 098-21-66525328, E-mail:



The sacral bone anomalies have an important effect on urinary and gastrointestinal tract and sacral ratio was defined as an indicator for estimating the anorectal abnormalities in children. This study was carried out for determining the association between sacral ratio and Urinary Tract Infections (UTI) among children.

Material and Methods:

In a cross sectional study, 100 children under 15 years with proven febrile UTI were referred to a referral children center considering the presence and grading of VUR according to VCUG enrolled in this study.

Sacral ratio was measured for all cases and the data were compared by student T test, Chi 2 and Mann Whitney tests. SPSS 16.0 software was used for data analysis. P values less than 0.05 were considered significant.


41 boys and 59 girls with mean age 4.8 years were enrolled in this study. The average range of sacral ratio was 0.82. There was no staistical difference between two different genders and ages (p > 0.05).

The values of SR in patients with VUR were lower than patients without VUR(P˂0.05) but there was no statistically significant difference between both bilateral and unilateral VUR and SR (p > 0.05).


The risk of sacral bone abnormality in patients with VUR is more than patients without VUR. Therefore, in patients with UTI and low SR simultaneously, tighter evaluation for VUR and treatment should be considered.

Keywords: Sacral Ratio, UTI, VUR, Children, Bone abnormality, Urinary Tract Infections.