Table 2

 Probability (p) values for comparisons of specimens (Wilcoxon rank sum (Mann-Whitney) test)

ComparisonTGF-βbFGFIL-6Protein
Retro-oil v macular hole0.240.0020.00010.0001
Retro-oil v revision vitrectomy0.540.00070.320.005
Retro-oil v non-PVR vitreous0.760.00010.0003<0.0001
Retro-oil v PVR vitreous0.720.0630.0520.015
PVR vitreous v non-PVR vitreous0.270.00040.035<0.0001
Revision vitrectomy v non-PVR vitreous0.860.690.0860.17
Revision vitrectomy v PVR vitreous0.290.00270.920.18
Retro-oil v combined control specimens0.750.00020.0005<0.0001