Prevalence of cutipositivity in a sample of homeless shelter population in Rome in the course of a Latent Tuberculosis Infection surveillance plan. Preliminary results.

Patrizia Laurenti, Gianluigi Quaranta, Stefania Bruno, Giovanni Delogu, Giovanni Fadda, Tommaso Pirronti, Gualtiero Ricciardi, Giuseppe La Torre, Antonio Gerardo Cairo, Pierangela Nardella, Fausta Ardito, Antonio Francesco De Lorenzis, Francesca Annunziata, Salvatore Geraci, Roberta Molina, Giuseppe Attanasio, Salvatore Pelargonio, Francesco Lauria, Alessandra Gualano

Risultato della ricerca: Contributo in rivistaArticolo in rivista

2 Citazioni (Scopus)

Abstract

Background: in Europe homelessness is a known risk factor both for active and latent tuberculosis (TB). In Rome 409 cases of TB were notified in 2004, but the real occurrence among homeless people is unknown. Tuberculosis surveillance has been organized with the aim to develop an integrated model for the risk evaluation and management of both Latent Tuberculosis infections (LTBI) and TB in Rome homeless people. Methods: the eligible individuals have been recruited in the homeless’ refuges. The Tuberculin Mantoux test has been used to evaluate the infection prevalence; in case of a positive result, the individual’s expectorate has been collected and the chest X-ray has been performed. A collecting data form has been filled in for evaluating some risk factors. Multiple logistic regression models have been carried out to find statistically significant determinants of infection. Results: out of 120 subjects recruited, 108 came back for the evaluation of the skin test; the prevalence of LTBI was 43.5% (47/108 subjects); no active TB cases were found. According to the multivariate analysis, factors significantly associated to LTBI are gender (for males OR = 4.94; 95% CI: 1.46 – 16.67, 1st model; OR 5.84; 95% CI: 1.26 – 21.10, 2nd model), birth place (for Europe: OR 3.05; 95% CI: 1.02 – 9.13, 1st model; OR 3.12; 95% CI: 1.10 – 8.88, 2nd model; for East Mediterranean native Region OR = 4.34; 95%CI: 1.15-16.39); Body Mass Index class (for obesity OR = 3.34; 95% CI:1.31-8.51). Conclusions: these preliminary results have demonstrated a high prevalence of LTBI among homeless people. Male gender, birth place (Europe and East Mediterranean native Region) and obesity were found to be significant risk factors. The surveillance system allowed positive patients for LTBI to be rapidly directed to a specialized centre for the clinical evaluation and the appropriate therapy in order to prevent the evolution of disease.
Lingua originaleEnglish
pagine (da-a)12-19
Numero di pagine8
RivistaItalian Journal of Public Health
Volume7
Stato di pubblicazionePubblicato - 2010

Keywords

  • Latent Tuberculosis infections
  • Tuberculosis
  • homeless
  • italy
  • survillance

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