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. 2021 Aug 10;20:15330338211034273. doi: 10.1177/15330338211034273

Table 5.

Univariate and Multivariate Analysis of the Relationship of Treatment-Related Factors With 5-Year OS and PFS in Definitive RT Group.

Factors Description Univariate Multivariate
%, P-value HR (95% CI) P-value
OS PFS OS PFS OS PFS
RT technique 3DCRT/IMRTvs 2D-RT 36.4% vs28.6%
0.128
40.4% vs 14.3%
0.053
0.828 (0.205-3.351) 0.896 (0.211-3.807) 0.792 0.881
RT dose ≥ 68 Gy vs <68Gy 44.4% vs 22.2%
0.067
44.4% vs 13.0%
0.044
0.638 (0.118-3.450) 0.951 (0.202-4.471) 0.602 0.949
Tumor response CR vs PR 50.0% vs 20.0%
0.065
57.1% vs 10.0%
0.006
1.959 (0.388-9.903) 4.741 (0.843-26.654) 0.416 0.077

Abbreviations: RT, radiotherapy; HR, hazard ratio; CI, confidence interval; OS, overall survival; PFS, progression free survival; 2DRT, 2-dimensional radiotherapy; 3DCRT, 3-dimensional conformal radiotherapy; IMRT, intensity-modulated radiotherapy; CR, complete remission; PR, partial remission.