| Microorganisms | HA | nHA | ||||||
| HA users presenting signs of inflammation (n. 10) | HA users without any signs of inflammation (n. 47) | nHA users presenting signs of inflammation (n. 12) | nHA users without any signs of inflammation (n. 21) | |||||
| Gram-positive |
|
|
|
| ||||
| Corynebacterium spp. | 2/10 | 20% | 1 | 2.1% | 2 | 16.7% | - | - |
| Brevibacterium sanguinis | - | - | - | - | 1 | 8.3% | - | - |
| Kocuria varians/rosea | - | - | - | - | 1 | 8.3% | - | - |
| Micrococcus spp. | 2/10 | 20% | - | - | 2 | 16.7% | 2 | 9.5% |
| Bacillus spp. | 1/10 | 10% | 19 | 40.4% | - | - | - | - |
| Gemella haemolysans | - | - | 1 | 2.1% | - | - | - | - |
| Staphylococcus aureus | 4/10 | 40% | 4 | 33.3% | - |
| ||
| CoNS | 10/10 | 100% | 42 | 89.4% | 12 | 100% | 18 | 85.7% |
| Streptococccus agalactiae | - | - | - | - | 1 | 8.3% | - | - |
| Enterococcus faecalis | - | - | - | - | 1 | 8.3% | - | - |
| Aerococcus viridans | 1/10 | 10% | - | - | - | - | - | - |
| Gram-negative |
|
|
|
| ||||
| Citrobacter freundii | 2/10 | 20% | - | - | - | - | - | - |
| Escherichia coli | 1/10 | 10% | 6 | 12.8% | - | - | - | - |
| Enterobacter cloacae | 4/10 | 40% | 9 | 19.1% | - | - | - | - |
| Enterobacter ludwigii. | 1/10 | 10% | - | - | - | - | - | - |
| Klebsiella pneumoniae | 1/10 | 10% | 6 | 12.7% | - | - | - | - |
| Klebsiella variicola. | 1/10 | 10% | - | - | - | - | - | - |
| Pantoea agglomerans | - | - | 1 | 2.1% | - |
| - | - |
| Pseudomonas aeruginosa | 1/10 | 10% | - | - | 5 | 41.7% | - | - |
| Pseudomonas luteola | - | - | 2 | 4.3% | - | - | - | - |
| Achromobacter spp. | - | - | 1 | 2.1% | - | - | - | - |
| Ralstonia pickettii | 1/10 | 10% | - | - | - |
| - | - |