TABLE 2.
Association of M genotypes with GAS disease and TSS
| Disease or TSS occurrence | No. of cases | No. (%) of TSS cases | No. (%) of the following M types:
|
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| M1 | M2 | M3 | M4 | M6 | M9 | M12 | M28 | Othera | |||
| Meningitis | 27 | 6 (22) | 8 (30) | 0 (0) | 4 (15) | 2 (7) | 5b (19) | 1 (4) | 1 (4) | 0 (0) | 6 (22) |
| Arthritis | 41 | 8 (20) | 7 (17) | 0 (0) | 6 (15) | 3 (7) | 2 (5) | 1 (2) | 6c (15) | 4 (10) | 12 (29) |
| Necrotizing fasciitis | 61 | 30 (49) | 19 (31) | 0 (0) | 12 (20) | 3 (5) | 1 (2) | 4 (7) | 3 (5) | 4 (7) | 15 (25) |
| Puerperal sepsis | 41 | 3d (7) | 9 (22) | 5d (12) | 1c (2) | 3 (7) | 2 (5) | 0 (0) | 1 (2) | 5 (12) | 15 (35) |
| Non-TSS | 123 | 22 (13) | 4 (2) | 14 (8) | 9 (5) | 10 (6) | 5 (4) | 9 (5) | 12 (7) | 38 (22) | |
| TSS | 47 | 21d (45) | 1 (2) | 9 (19) | 2 (4) | 0 (0) | 1 (2) | 2 (4) | 1 (2) | 10 (21) | |
a
Single M types representing less then 4% of all isolates (except M nontypeable).
b
P < 0.005.
c
P < 0.025.
d
P < 0.001.