RT Journal Article SR Electronic T1 DNA index and S phase fraction in uveal malignant melanomas. JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 521 OP 526 DO 10.1136/bjo.79.6.521 VO 79 IS 6 A1 W G Hodge A1 A J Duclos A1 G Rocha A1 E Antecka A1 M G Baines A1 C Corriveau A1 S Brownstein A1 J Deschenes YR 1995 UL http://bjo.bmj.com/content/79/6/521.abstract AB AIMS--To predict 5 year survival in patients with uveal malignant melanomas DNA indices were studied. METHODS--Using 45 paraffin embedded uveal malignant melanomas, the DNA index and S phase fraction of each tumour were the predictor variables recorded. RESULTS--Using the Cox proportional hazards model, aneuploid tumours and tumours which had an S phase fraction greater than 4% were significant predictors of early death. In order to demonstrate a biological gradient between a larger DNA index and shorter survival time, linear regression and transformed linear regression models were used. However, no such gradient could be demonstrated. CONCLUSION--Although this study shows promise for the use of DNA studies in the prognosis of uveal malignant melanoma, the exact role of these techniques remains to be determined.