Comprehensive analysis of some risk factors in the formation of a recurrent course of urinary tract infection in children

Authors

  • T. V. Budnik Shupyk National Medical Academy of Postgraduate Education, Kyiv, Ukraine, https://orcid.org/0000-0003-3956-3903
  • L. V. Kvashnina National Academy of Medical Sciences of Ukraine”, Kyiv,

DOI:

https://doi.org/10.14739/2310-1210.2020.4.208362

Keywords:

urinary tract infection, risk factors, children

Abstract

 

The aim to study the risk factors for the formation of recurrent urinary tract infection (UTI) in children with the determination of their prognostic value, both in single-factor and multifactorial impact.

Materials and methods. A total of 2 235 children aged between 1 month to 18 years with nephrological diseases were examined. To assess the risk factors for recurrent UTI in the study population, the patients were divided into groups: with recurrent UTI – 1 (n = 447), without UTI– 0 (n = 1788). 14 traits were taken from the list of studied factors: age <1 year; female gender; ARVI ≥3 episodes over 6 months; undifferentiated connective tissue disease; kidney cystic formations; hydronephrosis and other abnormalities; vesico-ureteric reflux; neurogenic bladder, enuresis; synechia, phimosis; no deworming in the last 6 months; constipation or irritable bowel syndrome; crystalluria, accumulation of salts according to ultrasound; antibacterial therapy in the next 3 months; the presence of resistant urological strains.

Results. The one-factor analysis allowed to remove statistically insignificant risk factors. As a result of multivariate analysis, a multiple logistic model was developed for the personalized prediction of a recurrent UTI in a child: odds = exp (0.712 × X1+ 3.808 × X2+ 6.982 × Х6 + 2.248×X7+ 0.165 × Х8+ 0.300 × X9+ 0.200 × X10+ 0.306 × X11+ 0.196 × X12+ 0.217 × X13+ 0.440 × X14 + (-3.489)), where Xn is a variable (or factor) which equals 1 in the case of a factor, and 0 – in the absence of a factor. The mathematical model of regression showed high statistical significance and informativeness based on the results of its testing, χ2 = 161.9; P < 0.001.

Conclusions. Factors such as frequent ARVI, undifferentiated connective tissue disease, kidney cystic formations did not present a risk of recurrent UTI episodes. The dominating factors in UTI recurrences were the following: female sex increased the chance of UTI in a child almost 12 times (RR = 11.898 ± 0.252 [7.255; 19.514], P < 0.001); hydronephrosis – 11 times (RR = 10.968 ± 0.419 [4.825; 24.933], P < 0.001); vesico-ureteric reflux – 8 times (8.308 ± 0.221 [5.380; 12.804], P < 0.05); age <1 year – 4 times (RR = 3.73 ± 0.165 [2.702; 5.158], P < 0.05). Other factors influenced the development of UTI only in their combined effects and increased the probability of UTI by 1.2–1.6 times (P < 0.05).

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How to Cite

1.
Budnik TV, Kvashnina LV. Comprehensive analysis of some risk factors in the formation of a recurrent course of urinary tract infection in children. Zaporozhye Medical Journal [Internet]. 2020Jul.22 [cited 2024Nov.2];22(4). Available from: http://zmj.zsmu.edu.ua/article/view/208362

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Section

Original research