Xpert MTB/RIF Ultra Ct Value: A Quick Indicator of Sputum Bacillary Load and Smear Status Prediction in Individuals with Pulmonary Tuberculosis.

Among the samples included in this study, there is a clear trend indicating that higher semi-quantitative categories on Xpert MTB/RIF Ultra are associated with higher smear microscopy grades.

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Among the smear positive cases 17.5% were graded as 1+, 10.5% as 2+, and 4.2% as 3+, reflecting a decreasing trend with increasing bacillary load according to the IUTLD classification, as shown in the Table 1 .

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The findings of our study unveil a significant correlation between the Ct value and smear grading, highlighting a notable trend where lower Ct values correspond to higher smear grades.

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