Table 2.

Comparative results of pathological examination, Xpert test, and their combination in terms of sensitivity and specificity (%).

Methods	Sensitivity	Specificity
Pathology	70.1	100
Xpert	82.5	97.5
Combination	93.8	97.5
χ2	30.947	–
P	< 0.001	1.000

Fisher's exact test was used to compare the specificity of pathological examination, Xpert test, and their combined diagnosis. The sensitivity of pathological examination, Xpert test and their combination was compared, and the differences between them was statistically significant (pathology vs. Xpert: χ² = 7.554, P < 0.006; pathology vs. combination: χ² = 33.645, P < 0.001; Xpert vs. combination: χ² = 10.806, P = 0.001).