Table 2 Performance of MeltPro for detecting isoniazid-resistance.

From: Rapid diagnosis of MDR and XDR tuberculosis with the MeltPro TB assay in China

Pilot

MeltPro

DST

Total

Sensitivity (%, 95% CI)

Specificity (%, 95% CI)

PPV (%, 95% CI)

NPV (%, 95% CI)

R

S

Shandong

R

134

13

147

86.4(80.2–91.0)

97.7(96.2–98.7)

91.2(85.5–94.8)

96.4(94.5–97.6)

S

21

559

580

Total

155

572

727

Guangzhou

R

197

10

207

83.8(78.6–88.0)

98.3(96.8–99.1)

95.2(91.3–97.4)

93.7(91.5–95.4)

S

38

569

607

Total

235

579

814

Total

R

331

23

354

84.9(81.0–88.1)

98.0(97.0–98.7)

93.5(90.4–95.6)

95.0(93.6–96.1)

S

59

1128

1187

Total

390

1151

1541