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. Author manuscript; available in PMC: 2015 Mar 19.
Published in final edited form as: Ann Thorac Surg. 2013 May 2;95(6):1872–1877. doi: 10.1016/j.athoracsur.2013.03.085

Table 6.

Estimates of visceral pleural invasion (VPI)_effects within T-stage subgroups based on extended exponential regression models including VPI-tumor size interaction terms.

Estimate of effect (95%CI)
Tumor Size DFS OS
T1a -0.063 (-0.914, 0.788) -0.115 (-0.678, 0.448)
T1b -0.187(-0.992, 0.618) -0.269(-0.743, 0.205)
T2a -0.016(-0.633, 0.601) -0.375(-0.790, 0.040)
T2b -0.379(-1.327, 0.569) -0.007(-0.635,0.621)
T3 -1.753(-2.940,-0.566) -0.074(-0.935,0.787)