Table 1.
Discriminatory power of the three different typing methods for a subset of 274 drug-resistant M. tuberculosis isolates from Sichuan, China.
| Method | Number of types | Number of unique isolates | Number of clustered isolates | Number of clusters | Range of cluster size (number of isolates) | Number of clustered Beijing isolates | Number of clustered non-Beijing isolates | HGI |
|---|---|---|---|---|---|---|---|---|
| 24-locus MIRU-VNTR | 268 | 262 | 12 | 6 | 2 | 11 | 1 | 0.999 |
| 12 highly discriminatory loci | 267 | 260 | 14 | 7 | 2 | 13 | 1 | 0.999 |
| IS6110-RFLP | 266 | 260 | 14 | 6 | 2-3 | 5 | 9 | 0.999 |