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. 2017 May 27;19(10):1327–1337. doi: 10.1093/neuonc/nox078

Table 2.

Univariate analysis of IDH wild-type lower-grade gliomas

All IDH Wild-Type Tumors Grade II Grade III
Variables n Median OS, y HR (95% CI) P n Median OS, y P n Median OS, y P
Age a 142 1.05 (1.03–1.06)* <0.001 72 1.06 (1.03–1.08)b <0.0001 70 1.02 (1.00–1.04)b 0.072
Gender
 Male 83 1.78 1 36 8.4 47 1.23
 Female 59 3.42 0.71 (0.46–1.08) 0.707 36 6.93 0.61 23 1.62 0.07
Histologic Type
 Oligodendroglioma 15 7.63 1 8 7.63 7 3.5
 Oligoastrocytoma 19 3.1 2.24 (0.80–6.46) 13 NR 6 0.5
 Astrocytoma 108 1.92 3.06 (1.24–7.58)* 0.016 51 6.9 0.256 57 1.18 0.021
Histologic Grade
 II 72 8.4 1
 III 70 1.32 4.10 (2.58–6.54)* <0.001
Total Resection
 Yes 62 2.86 1 27 NR 35 1.78
 No 52 1.55 1.54 (0.97–2.43) 0.066 32 3.9 0.057 20 0.4 0.002
Tumor Location
 Nonmidline 107 2.83 1 57 8.4 51 1.32
 Midline 34 1.55 1.56 (0.99–2.47) 0.06 15 4.4 0.228 19 1.09 0.387
EGFR
 Non-amp 107 2.67 1 51 NR 57 1.62
 Amp 18 1.03 2.31 (1.30–4.10) * 0.004 8 0.82 <0.0001 10 1.03 0.63
TERT promoter
 wt 98 3 1 53 10.65 45 1.55
 mut 35 1.32 2.44 (1.53–3.87)* <0.001 14 1.76 0.0003 21 1.05 0.18
H3F3A
 wt 116 2.24 1 54 8.4 62 1.32
 K27M 10 0.5 2.25 (1.16–4.36)* 0.016 5 2.83 0.007 5 0.5 0.03
BRAF
 wt 114 2.43 1 55 8.4 59 1.52
 V600E 10 10.65 0.46 (0.17–1.28) 0.139 6 NR 0.355 4 1.85 0.657
MYB
 Non-amp 83 2.57 1 45 8.4 38 1.17
 Amp 29 2.58 0.88 (0.50–1.53) 0.64 15 NR 0.518 14 1.55 0.54

aAge is a continuous variable; bhazard ratio and 95% CI shown for age; n, number of cases with data available; wt, wild-type; mut, mutant; amp, amplified; *denotes P < 0.05.