ObjectiveTo explore the value of T-SPOT.TB test in the diagnosis of active tuberculosis and its influencing factors. MethodsFrom July 2010 to November 2012, a total of 289 suspected active tuberculosis patients were enrolled in the study and underwent T-SPOT.TB test. All the patients enrolled were from West China Hospital of Sichuan University. The diagnostic value of T-SPOT.TB applied in determining active tuberculosis was then evaluated. ResultsAccording to the diagnostic criteria, 84 patients diagnosed with active tuberculosis were eligible for analysis and enrolled as a tuberculosis group, and 156 patients were enrolled as a control group. The sensitivity of T-SPOT.TB test was 83.3%, while the specificity was 80.1%. Both univariate and multivariate analyses showed the characteristics of patients such as general conditions (eg. age, sex) and basic diseases (eg. immunosuppression condition, malignant tumour) were not the risk factors of false-positive or false-negative result of T-SPOT.TB. ConclusionT-SPOT.TB test for the diagnosis of active tuberculosis has high sensitivity and specificity, with important value referred for diagnosing suspected active tuberculosis patients.
ObjectiveTo summarize the overall diagnostic accuracy of serum proteomic assay for pulmonary tuberculosis through a Meta-analysis.MethodsStudies regarding the diagnostic utility of serum proteomic assay for pulmonary tuberculosis were searched in Scopus, PubMed, Wanfang, China National Knowledge Infrastructure, and CQVIP. The methodical quality was evaluated by Quality Assessment for Studies of Diagnostic Accuracy Studies-2 tool. The pooled sensitivity, specificity, positive/negative likelihood ratios, and diagnostic odds ratio were calculated. Summary receiver operating characteristic curve was generated and the area under the curve was calculated.ResultsThere were 10 articles with 2 433 patients included in this study, containing 1 191 cases and 1 242 controls. The pooled sensitivity, specificity, positive/negative likehood ratios, and diagnostic odds ratio were 0.86, 0.88, 6.72, 0.17, and 46.84, respectively. The area under the curve was 0.93.ConclusionSerum proteomic assay plays a role in diagnosing pulmonary tuberculosis, and proteomic assay represents a novel and useful method for diagnosing pulmonary tuberculosis.