Familial Nasopharyngeal Carcinoma 6

Prognostic Factors in Nasopharyngeal Cancer 113Multivariate analysisLRFFS MFS DFS/PFS OS LRFFS MFS DFS/PFS– – – – – – –– – – p = 0.01 – – –– – – p < 0.001 n.s. p = 0.005 p = 0.005p = 0.0003 – – – p = 0.002 – –– – p = 0.047 p = 0.03 – – p = 0.08– p = 0.007 – p = 0.022 – p = 0.029 –– p = 0.031 – – – p = 0.033 ––n.s.n.s.–n.s.n.s.–n.s.p = 0.008p < 0.0001–n.s.––––––n.s.–n.s.demonstrated better prognosis for younger patients(Johansen et al. 2001; August et al. 2001; Chowet al. 2002; Farias et al. 2003; Khademi et al. 2006;Corry et al. 2006). Chow et al. (2002) collected 172Stage III/IV NPC patients from Canada and showedthat age