a positive trendP = 0.0957
A positive trend was observed between difference in tumor centroid location and PFS when pooling all patients (Fig. 2 D; P = 0.0957 ) and a significant bias was observed in this correlation (intercept = 8.6 mm; P < 0.0001 ), suggesting an average change in centroid distance of around 8.6 mm regardless of PFS.