Comparison of sputum microbiology isolates between patients with the IVS8-5T and IVS8-7T alleles
| IVS8 | PSA | SA | HI | Other | Clear | No Sputum |
| IVS8-5T | 4 | 9 | 4 | 1 | 2 | 1 |
| IVS8-7T | 1 | 2 | 2 | 2 | 2 | 20 |
Some patients had more than one organism on sputum culture
PSA: Pseudomonas aeruginosa
SA: Staphylococcus aureus
HI: Heamophilus influenzae