Table 2.
Comparison of Bacterial Phenotypes in Persistent Versus Eradicated Pseudomonas aeruginosa Isolates
| PA Phenotypes | Persistent PA (n = 19) | Eradicated PA (n = 52) | P Value |
|---|---|---|---|
| Biofilm production (OD595nm), median (IQR) | 0.21 (0.15−0.24) | 0.21 (0.10−0.32) | .97 |
| Twitching, mm, median (IQR) | 18.0 (3.7−20.8) | 26.9 (19.3−36.7) | <.01 |
| Swimming, mm, median (IQR) | 11.2 (0−17) | 13.9 (10.1−16.0) | .33 |
| Mucoidy, No. (%) | 12 (63) | 18 (35) | .03 |
| Congo red binding (OD495nm), median (IQR) | −0.25 (−0.32 to −0.21) | −0.23 (−0.31 to −0.15) | .14 |
Statistical comparisons were performed using Mann–Whitney or χ 2 test.
Abbreviations: IQR, interquartile range; OD, optical density; PA, Pseudomonas aeruginosa.