Influence of Hospitalization upon Diagnosis on the Risk of Tuberculosis Clustering.

Abstract

Setting

Culture-positive tuberculosis (TB) diagnosed in the metropolitan area of Milan (Italy) over a 5-year period (1995-1999).

Objective

To assess the impact of short-course hospitalization upon diagnosis on the overall risk of TB clustering.

Design

Restriction fragment length polymorphism profiles with a similarity of 100% defined a cluster. Uni- and multivariable logistic regression models were performed to assess factors associated with clustering.

Results

Among 1139 patients, 392 (34.4%) were hospitalized before or soon after diagnosis, 405 (35.6%) received domiciliary treatment since the diagnosis and 392 (30%) had no information about initial clinical management. One hundred fifteen molecular clusters involving 363 patients were identified. Using multivariable analysis, hospitalization was not significantly associated with clustering (OR 1.06, 95%CI 0.75-1.50, p=0.575). Subjects aged >65 years old (OR 0.60; 95CI%:0.37-0.95; p=0.016) and non-Italian born patients (OR 0.56; 95%CI:0.41-0.76; p<0.001) were running a lower risk of clustering. Conversely, HIV co-infected patients (OR 1.88, 95%CI:1.20-2.95, p=0.006) and those with MDR TB (OR 2.50, 95%CI:1.46-4.25, p=0.001) were significantly more likely to be involved in clusters.

Conclusion

In our cohort, domiciliary treatment was not associated with TB clustering. Expanding domiciliary treatment upon diagnosis appears as an advisable measure to reduce unnecessary costs for the health care system.

Department

Description

Provenance

Subjects

Citation

Published Version (Please cite this version)

10.4084/mjhid.2013.071

Publication Info

Lapadula, Giuseppe, Fabio Zanini, Luigi Codecasa, Fabio Franzetti, Maurizio Ferrarese, Manuela Carugati, Ester Mazzola, Consuelo Schiroli, et al. (2013). Influence of Hospitalization upon Diagnosis on the Risk of Tuberculosis Clustering. Mediterranean journal of hematology and infectious diseases, 5(1). p. e2013071. 10.4084/mjhid.2013.071 Retrieved from https://hdl.handle.net/10161/29822.

This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.


Unless otherwise indicated, scholarly articles published by Duke faculty members are made available here with a CC-BY-NC (Creative Commons Attribution Non-Commercial) license, as enabled by the Duke Open Access Policy. If you wish to use the materials in ways not already permitted under CC-BY-NC, please consult the copyright owner. Other materials are made available here through the author’s grant of a non-exclusive license to make their work openly accessible.