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Table 6 Summary of the Studies Reporting DMFS and OS of advanced N-stage NPC patients

From: Comparing treatment outcomes of different chemotherapy sequences during intensity modulated radiotherapy for advanced N-stage nasopharyngeal carcinoma patients

Author Year N Technique of RT DMFS(%) OS(%)
Leung, et al [9] 2005 1070 2D-CRT 5-year: 5-year:
N2:71.6 N2:60.3
N3a:66.9 N3a:48.4
N3b:52.1 N3b:40.2
Ma, et al [10] 2001 621 2D-CRT 5-year:
N2:62
N3:51
Lai, et al [11] 2011 1276 2D-CRT 5-year:
IMRT 2D-
CRT:N2:75.1
N3:65.4
IMRT: N2:80.5
N3:60.9
Wong, et al [2] 2010 175 IMRT 3-year:
N2:76.6
N3:67.3
Yi, et al [12] 2008 147 IMRT 3-year: 3-year:
N2-3:65.2 N2-3:68.5
Current study 2012 198 IMRT 5-year: 5-year:
N2:68.5 N2:71.0
     N3:50.1 N3:55.7