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. 2013 Nov 20;8(11):e79669. doi: 10.1371/journal.pone.0079669

Figure 2. One-way sensitivity analyses comparing Xpert MTB/RIF and smear diagnostic strategies. Definition of abbreviations: AFB+, sputum acid-fast bacli smear-positive; AFB−, sputum acid-fast bacilli smear-negative.

Figure 2

Legend: †Ranges for sensitivity analyses are shown in parentheses. The vertical line at $2278 corresponds to the incremental savings in total costs per patient as shown in Table 3, dark grey bars show the estimated incremental savings of Xpert versus sputum smear when using the lowest value of the parameter range shown, and the light grey bars show the corresponding estimate when using the highest parameter value.