Table 1.

Univariate and multivariate analysis of prognostic factors for progression-free survival

Variablep Value
EGFR = epidermal growth factor receptor; LOH = loss of heterozygosity; RR = relative risk; WHO = World Health Organization.
Univariate analysis
    Age <50 vs ≥50 y0.002
    WHO II vs III0.06
    LOH on 1p0.01
    LOH on 19q0.06
    P16/CDKN2A deletion0.09
    EGFR amplification0.007
    LOH on 10q0.03
Multivariate analysis
    Age <50 y0.001 (RR = 0.14; 95% CI: 0.043–0.46)
    LOH on 1p0.006 (RR = 0.194; 95% CI: 0.06–0.62)