CT texture analysis: a potential tool for prediction of survival in patients with metastatic clear cell carcinoma treated with sunitinib

Table 5 Imaging variables combined with IMDC to see if they improve on prediction of the PFS

Model	IMDC	IMDC Combined Model	Fit statistic value (−2LL)
Baseline model with IMDC alone	Not significant		174.4
IMDC + nSD pre treatment	Not significant	Significant	169.3
IMDC + nSD post treatment	Not significant	Significant	165.9

Entries in bold were significant
Abbreviations: nSD = size normalized standard deviation, IMDC International Metastatic Renal-Cell Carcinoma Database Consortium Model, PFS progression free survival

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