Table 2. Production of melanin, biofilm, and motility profile of clinical isolates of S. maltophilia.
| Melanin | Biofilm | Motility | ||||
|---|---|---|---|---|---|---|
| Positive | Negative | High | Low | Motile | Non-motile | |
| Invasive (n = 45) | 41 (91.1) | 4 (8.8) | 9 (20) | 36 (80) | 100 | 0 |
| Non-invasive (n = 63) | 60 (95.2) | 3 (4.7) | 11(17.5) | 52 (82.5) | 100 | 0 |
| Device-related (n = 71) | 65 (91.5) | 6 (8.4) | 14 (19.7) | 57 (80.2) | 100 | 0 |
| Non-device-related (n = 71) | 36 (97.2) | 1 (2.7) | 7 (18.9) | 30 (81) | 100 | 0 |
Neither invasive nor non-invasive isolates showed significant difference in the melanin production and biofilm formation.