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. 2009 Nov 16;27(36):6199–6206. doi: 10.1200/JCO.2009.23.4799

Table 4.

Multivariate Cox Regression Analysis of Pathologic Factors by T Category for Stage I and II Melanoma Where Mitotic Rate Data Are Available

T Category Tumor Thickness
Ulceration
Mitotic Rate
Clark Level
χ2 P χ2 P χ2 P χ2 P
T1 12.8 .0003 3.8 .05 20.8 < .0001 1.9 .17
T2 4.9 .03 16.2 < .0001 15.9 < .0001 0.2 .65
T3 4.1 .04 15.4 < .0001 12.2 .0005 1.4 .24
T4 0.2 .69 14.2 .0002 9.1 .003 2.7 .10