showed a trendP =0.06
The subgroup that received a combination of bevacizumab with a regimen of chemotherapy showed a trend of improvement without significance (HR =0.91; 95% CI, 0.83–1.00; Z=1.91, P =0.06 for PC-based chemotherapy, HR =0.91; 95% CI, 0.77–1.07; Z=1.16, P =0.25 for non-PC-based chemotherapy).