Table 2.
Prevalence of S. aureus superantigen genes detected from individuals with cystic fibrosis.
| Toxin | Iowa Subjects with CF Total = 45 |
Single Culture Total = 28 |
Multiple Cultures Total = 17 |
P † | |||
|---|---|---|---|---|---|---|---|
| N | % | N | % | N | % | ||
| sea | 19 | 42.2% | 8 | 28.6% | 11 | 64.7% | 0.03 |
| seb | 2 | 4.4% | 1 | 3.6% | 1 | 5.9% | 1.00 |
| sec | 4 | 8.9% | 2 | 7.1% | 2 | 11.8% | 0.63 |
| sed | 6 | 13.3% | 2 | 7.1% | 4 | 23.5% | 0.18 |
| see | 3 | 6.7% | 0 | 0.0% | 3 | 17.6% | 0.05 |
| seg | 42 | 93.3% | 25 | 89.3% | 17 | 100.0% | 0.28 |
| sel-h | 0 | 0.0% | 0 | 0.0% | 0 | 0.0% | - |
| sel-i | 42 | 93.3% | 25 | 89.3% | 17 | 100.0% | 0.28 |
| sel-k | 4 | 8.9% | 2 | 7.1% | 2 | 11.8% | 0.63 |
| sel-l | 3 | 6.7% | 1 | 3.6% | 2 | 11.8% | 0.55 |
| sel-m | 39 | 86.7% | 23 | 82.1% | 16 | 94.1% | 0.38 |
| sel-n | 41 | 91.1% | 25 | 89.3% | 16 | 94.1% | 1.00 |
| sel-o | 43 | 95.6% | 26 | 92.9% | 17 | 100.0% | 0.52 |
| sel-p | 30 | 66.7% | 15 | 53.6% | 15 | 88.2% | 0.02 |
| sel-q | 15 | 33.3% | 8 | 28.6% | 7 | 41.2% | 0.52 |
| sel-u | 41 | 91.1% | 24 | 85.7% | 17 | 100.0% | 0.28 |
| sel-x | 39 | 86.7% | 23 | 82.1% | 16 | 94.1% | 0.38 |
| tstH | 8 | 17.8% | 3 | 10.7% | 5 | 29.4% | 0.23 |
| ≥1 of egc | 44 | 97.8% | 27 | 96.4% | 17 | 100.0% | 1.00 |
| 6 of egc | 37 | 82.2% | 21 | 75.0% | 16 | 94.1% | 0.13 |
†P values compare subjects with single culture to subjects with multiple cultures using Fisher’s exact test. Bold font indicates genes belonging to the enterotoxin gene cluster.