Table 1.
Comparative efficacies of immunological and molecular markers in diagnosis of leprosy
Name of the test | Types of leprosy |
Sensitivity/Specificity (%) | |
---|---|---|---|
PB patients | MB patients | ||
Percent (%) positivity | |||
Serological marker (PGL-1) | 0-40%[10,11,12,27] | 70-95%[10,11,12,27] | 91%[27] |
Evaluation of dipstick assay using ND-O-BSA-based ELISA | - | - | 94.9% concordance with ELISA[24] |
ML-flow test | 40%[27,28] | 97.4%[27,28] | 97.4%/90.2%[27,28] |
35-kD-based serology | 46.7%[39] | 98.5%[39] | 98.4%/100%[40] 90%/97.5%[42] |
NDO-LID rapid test | 15.4-21.2%[58] | 83.3-87%[58] | 87%/96.1%[58] |
PCR using gene targetRLEP | 73%[67] 83%[70] |
100%[67,68] 96.6%[71] |
73.6%/100%[67] 87.1%[72] |
PCR using 16SrRNA gene target | 50%[71] | 100%[71] | 51%/100%[70] |
PCR using Ag85B gene target | 80%9[72] | 100%[72] | 56%/100%[70] |
PCR using 18kDa gene target | 74%[73] | 99%[73] | 100%/83%[73] |
Proline-rich antigen (pra-36 kDa) | 36-60%[75,76,77] | 87-100%[75,76,77] | - |
Multiplex PCR | 83%[68] | 100%[68] | - |
#Reference numbers have been super fixed against the values