Research Article

Prognostic Value of C-Reactive Protein to Albumin Ratio in Glioblastoma Multiforme Patients Treated with Concurrent Radiotherapy and Temozolomide

Table 2

Treatment characteristics and clinical outcomes.

CharacteristicWhole cohort (n = 153)CRP/Alb <0.75 (n = 92)CRP/Alb ≥0.75 (n = 61) value

Radiotherapy technique, n (%)
 3D-CRT (60 Gy)106 (69.3)63 (68.5)43 (70.5)0.81
 SIB-IMRT (70 Gy)47 (30.7)29 (31.5)18 (29.5)
Adjuvant TMZ cycles, n (%)
 1–548 (31.4)31 (33.7)17 (27.9)0.63
 6–12105 (68.6)61 (66.3)44 (72.1)
Brain failure, n (%)
 None9 (5.7)7 (7.6)2 (3.3)0.42
 Infield120 (78.8)75 (81.5)45 (73.7)
 Marginal14 (9.9)6 (6.5)8 (13.1)
 Distant4 (2.8)2 (2.2)2 (3.3)
 Infield and distant4 (1.4)2 (2.2)2 (3.3)
 Marginal and distant2 (1.4)0 (0)2 (3.3)
Salvage treatment, n (%)
 None58 (38.0)37 (40.2)21 (34.4)0.50
 Ctx23 (15.0)14 (15.3)9 (14.8)
 RO12 (7.8)6 6.5)6 (9.8)
 SRS/SRT13 (8.6)6 (6.5)7 (11.5)
 RO + SRS/SRT12 (7.8)7 (7.6)5 (8.2)
 RO + Ctx15 (9.8)10 (10.9)5 (8.2)
 RO + SRS + Ctx12 (7.8)7 (7.6)5 (82)
 Unknown8 (5.2)5 (5.4)3 (4.9)
OS
 Median, mo (95% CI)16.2 (12.7–19.7)22.5 (20.1–24.9)15.7 (13.5–17.9)<0.001
 2 years, %25.441.716.2
 5 years, %9.520.00

CRP/Alb, CRP to albumin ratio; 3D-CRT, 3-dimensional conformal radiotherapy; SIB-IMRT, simultaneous integrated boost intensity-modulated radiotherapy; TMZ, temozolomide; RO, reoperation; SRS/SRT, stereotactic radiosurgery/stereotactic radiotherapy; Ctx, chemotherapy; OS, overall survival; CI, confidence interval.