From: Comparison of weekly and triweekly cisplatin regimens during concurrent chemoradiotherapy for nasopharyngeal carcinoma
Variable
HR
95% CI
P*
OS
EBV
3.402
1.525–7.589
0.003
Cisplatin regimen
2.795
0.836–9.350
0.095
DFS
2.365
1.355–4.126
0.002
N stage
2.180
1.157–4.109
0.016
2.071
0.969–4.426
0.060