Table 3.
Microbial strains | Planktonic CFU/mL | Planktonic doubling time (min) | Adherent CFU/mL | Adherent doubling time (min) | AI (*) |
---|---|---|---|---|---|
P. aeruginosa | 1.2 × 107 ± 8.8 × 106 | 43.5 | 1.5 × 106 ± 1.5 × 106 | 77.0 | 1.77 |
K. pneumoniae | 3.2 × 107 ±7.5 × 106 | 36.1 | 1.6 × 106 ± 1.3 × 106 | 75.6 | 2.09 |
R. mannitolilytica | 2.5 × 107 ± 8.3 × 106 | 37.7 | 3.8 × 105 ± 2.9 × 105 | 155.9 | 4.13 |
S. aureus | 3.3 × 107 ±1.5 × 107 | 35.9 | 2.2 × 106 ± 1.5 × 106 | 67.6 | 1.88 |
S. epidermidis | 2.1 × 107 ± 1.2 × 107 | 38.7 | 2.0 × 106 ± 1.3 × 106 | 69.1 | 1.78 |
Other Gram+ | 2.9 × 107 ± 3.3 × 107 | 36.6 | 2.4 × 106 ± 1.5 × 106 | 65.6 | 1.79 |
Average | 2.5 × 107 ± 9.7 × 106 | 37.6 | 1.7 × 106 ± 7.4 × 105 | 73.5 | 1.97 |
Adherence index (AI) was calculated as the ratio between the doubling time for the adherent fraction vs. the doubling time of the planktonik fraction.