TABLE 1.
Comparison of the clustering of isolates in lineages and CMs a
| Classification | Clustered (%) | Non-clustered (%) | χ 2 | P |
|---|---|---|---|---|
| Lineages | ||||
| Lineage 2 | 207 (45.0) | 253 (55.0) | 8.673 | 0.003 |
| Lineage 4 | 24 (27.9) | 62 (72.1) | ||
| CMs | ||||
| With CMs | 100 (52.0) | 93 (49.0) | 11.051 | 0.001 |
| Without CMs | 131 (36.9) | 222 (63.1) | ||
CMs, the isolates with putative compensatory mutations.