Table 2.
Probability (p) values for comparisons of specimens (Wilcoxon rank sum (Mann-Whitney) test)
| Comparison | TGF-β | bFGF | IL-6 | Protein |
| Retro-oil v macular hole | 0.24 | 0.002 | 0.0001 | 0.0001 |
| Retro-oil v revision vitrectomy | 0.54 | 0.0007 | 0.32 | 0.005 |
| Retro-oil v non-PVR vitreous | 0.76 | 0.0001 | 0.0003 | <0.0001 |
| Retro-oil v PVR vitreous | 0.72 | 0.063 | 0.052 | 0.015 |
| PVR vitreous v non-PVR vitreous | 0.27 | 0.0004 | 0.035 | <0.0001 |
| Revision vitrectomy v non-PVR vitreous | 0.86 | 0.69 | 0.086 | 0.17 |
| Revision vitrectomy v PVR vitreous | 0.29 | 0.0027 | 0.92 | 0.18 |
| Retro-oil v combined control specimens | 0.75 | 0.0002 | 0.0005 | <0.0001 |