La tunisie Medicale - 2019 ; Vol 97 ( n°010 ) : 1169-1176
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Summary

Background: The role of Ramadan fasting (RF) as a predictive factor of urinary tract infection (UTI) recurrence was controversially discussed in
the literature.
Aim: The present study aimed to identify the prognosis factors of recurrent UTIs.
Methods: Data were retrospectively collected from patients with UTI diagnosed at the infectious diseases department and its affiliated outpatient
department in Hedi Chaker University Hospital, Sfax, Tunisia, between 2010 and 2017. Kaplan-Meier method was used to generate recurrence-free
survival (RFS) curves for first episode of UTI diagnosed in two groups: during and outside Ramadan, which were compared using Log-rank test for
statistical inference. Univariate and multivariate Cox proportional hazards regression models were used to identify UTI recurrence factors (sex, age,
age group, season, comorbidities, first UTI episode diagnosed during Ramadan, UTI requiring hospitalization, length of hospital stay, nosocomial
UTI, clinical presentation).
Results: During the follow up, among the 867 patients with UTI, 105 (12.1%) developed a recurrent UTI one. The RFS median [95% confidence
interval] was 60 [40 to 82] days. Survival curves showed that patients with UTI diagnosed during Ramadan had shorter RFS compared with those
diagnosed outside of Ramadan (32 vs. 60 days, respectively, p=0.002). RF (hazard ratio = 2.96; p = 0.033) and diabetes mellitus (hazard ratio =1.6;
p = 0.033) were independently associated with UTI recurrence in multivariate Cox regression analysis.
Conclusion: Recurrent UTI was a prevalent and challenging condition among patients with UTI. Diabetes mellitus and RF had a prognosis value
for recurrence in UTI.

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treatment Child diagnosis surgery prognosis Tunisia Children Crohn’s disease Breast cancer screening Cancer epidemiology Ulcerative colitis Risk factors tuberculosis
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