TABLE 2.
Prevalence of BDQ resistance by method and composite reference standarda
| DST method | CC or BP (μg/ml) | No. | % resistant (range) |
|---|---|---|---|
| AP | 0.25 | 495 | 3.2 (1.9–5.2) |
| BMD frozen | 0.12 | 494 | 3.4 (2.0–5.5) |
| BMD dry | 0.12 | 494 | 2.2 (1.1–3.9) |
| MGIT960 | 1 | 492 | 1.4 (0.6–2.9) |
| CRS | NA | 492 | 2.2 (1.1–3.9) |
a
CC, critical concentration; BP, MIC breakpoint; NA, not applicable; CRS, composite reference standard. The CC is indicated for the agar proportion (AP) and MGIT960 methods; the BP is indicated for BMD frozen and BMD dry methods.