CareStartâ„¢ G6PD Biosensor | 30% G6PD activity cut-off (0.77 U/gHb) (95% CI) | 70% G6PD activity cut-off (1.81 U/gHb) (95% CI) | 80% G6PD activity cut-off (2.06 U/gHb) (95% CI) |
---|---|---|---|
Spectrophotometry cut-off | 1.89 U/gHb | 4.41 U/gHb | 5.04 U/gHb |
AUC (95%CI) | 0.82 | 0.76 | 0.74 |
 | (0.71–0.94) | (0.65–0.86) | (0.63–0.84) |
Sensitivity | 0.63 (0.38–0.84) | 0.69 (0.50–0.84) | 0.65 (0.47–0.80) |
Specificity | 0.95 (0.89–0.98) | 0.75 (0.67–0.83) | 0.70 (0.61–0.78) |
PPV | 0.57 (0.37–0.75) | 0.24 (0.17–0.32) | 0.19 (0.14–0.26) |
NPV | 0.96 (0.93–0.98) | 0.96 (0.93–0.97) | 0.95 (0.92–0.97) |
Accuracy | 0.92 (0.86–0.95) | 0.75 (0.67–0.82) | 0.69 (0.61–0.77) |
Prevalence | 10% | 18% | 20% |
True positive | 12/19 | 22/51 | 22/57 |
True negative | 124/131 | 89/99 | 81/93 |
False positive | 7/19 | 29/51 | 35/57 |
False negative | 7/131 | 10/99 | 12/93 |