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Table 5 Multivariate analysis of DMFS and PFS by Cox regression

From: Outcomes of orbital malignancies treated with eye-sparing surgery and adjuvant particle radiotherapy: a retrospective study

  DMFS PFS
Variables P HR (95% CI) P HR (95% CI)
T classification
 T1 + T2 Ref Ref Ref Ref
 T3 + T4 0.368 6.673 (0.107–415.609) 0.189 6.28 (0.406–97.134)
Surgical margin
 R0 + R1 Ref Ref Ref Ref
 R2 0.233 0.042 (0–7.646) 0.969 1.059 (0.059–18.20)
Histology
 Epithelium Ref Ref Ref Ref
 Mesenchyme 0.976 0 0.384 0.255 (0.012–5.548)
 BED 0.053 0.717 (0.512–1.004) 0.023 0.726 (0.551–0.957)
 GTV, ml 0.079 1.199 (0.979–1.469) 0.104 1.117 (0.977–1.001)
 CTV, ml 0.095 0.946 (0.887–1.010) 0.053 0.953 (0.907–1.278)