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Chinese men with pleural tuberculosis at greater risk of empyema

05 Jan 2020

Tuberculosis empyema (TE) remains a common issue in China, especially among men, a recent study has shown.

Researchers conducted a retrospective cohort study on 474 patients with pleural tuberculosis (TB). Having grossly purulent pleural fluid was the basis for empyema identification. The primary study outcomes were factors predictive of TE.

Forty-two patients (mean age, 29.1±12.2 years; 90.5 percent male) were confirmed to have TE, resulting in an overall prevalence rate of 8.9 percent. The remaining 432 (91.1 percent; mean age, 36.3±18.5 years; 78.0 percent male) were established as non-TE comparators. More than half (51.3 percent) were smokers, and 71.1 percent had coughs, the most common symptom. Fevers were present in 70.7 percent and dyspnoea in 51.1 percent.

Multivariate logistic regression analysis identified being male as a strong and significant risk factor for developing TE in pleural TB patients (odds ratio [OR], 4.431, 95 percent confidence interval [CI], 1.411–13.919; p=0.011). Analysis was adjusted for pertinent confounders, such as age, comorbidity, symptoms and effusion sites.

Adenosine deaminase levels >88 U/L (OR, 3.367, 95 percent CI, 1.533–7.395; p=0.002) and white blood cell count >9.52 109/L (OR, 5.763; 95 percent CI, 2.473–13.431; p<0.001) also emerged as significant predictors of TE. In contrast, having pulmonary TB exerted a significant protective effect against TE (OR, 0.155, 95 percent CI, 0.072–0.336; p<0.001).

Important study limitations include its retrospective nature, the failure to take empyema stage into consideration and a single-centre design, which may limit its generalizability in broader populations, the researchers said. Further studies are required to validate the present findings.

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Most Read Articles
4 days ago
Being overweight or obese in adolescence appears to increase the risk of papillary thyroid cancer in adulthood, a recent study has shown.
Yesterday
A recent study reports a mean growth rate of proximal aorta of about 0.1 mm/year in hypertensive patients with known aortic dilatation. In addition, those with increased rather than normal aortic z score have slower dilatation over time.
Tristan Manalac, 29 Mar 2020
While the 2019 coronavirus disease (COVID-19) is generally mild in children, infants appear to be particularly susceptible to severe and critical infections, a new study has found.
5 days ago
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