TABLE 3.
Concordance of spa typing and PFGE with MLST and clonal type based on a 125-strain subset
| Classification level | No. of strains | Concordance (%) with:
|
% Violation of assignment tob:
|
|||
|---|---|---|---|---|---|---|
| MLST ST | MLST CC | Clonal type | MLST ST | MLST CC | ||
| spa type | 125 | 95.4 | 12 | 0 | ||
| spa CC | 124a | 98.6 | 61 | |||
| spa type plus SCCmec type | 93 | 94.8 | ||||
| PFGE type | 125 | 95.5 | 5 | 0 | ||
| PFGE group | 125 | 91.5 | 0 | |||
| PFGE type plus SCCmec type | 93 | 96.1 | ||||
a
One spa type, shorter than five repeats, was excluded.
b
Calculated as the proportion of discordant pairs of strains in the two-by-two concordance table that were considered different by MLST but similar by the other typing method.