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. 2015 Jul 21;15:530. doi: 10.1186/s12885-015-1552-y

Table 3.

Correlation between early tumor shrinkage 6 weeks after treatment and overall response

Overall response Sum
Response Non-response
Early tumor shrinkage Yes 17 6 23
No 13 67 80
Sum 30 73 103

(Correlation coefficient: 0.529, p < 0.001)