Figure 6
From: Correlation between NK function and response to trastuzumab in metastatic breast cancer patients
Time to tumor progression is correlated with the NK activity. A cut-off of 5%. 3% and 2% cytotoxicity was chosen to discriminate between high and low NK levels at the three E:T ratios of 50:1, 25:1 and 12:1 respectively and a stratified PFS curve was created from these values. The figure shows that higher NK values are significantly (Log-Rank test p values) correlated with longer time to tumor progression.