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. 2019 Oct 14;12:8411–8420. doi: 10.2147/OTT.S222426

Table 3.

Relationship Of Clinicopathological Characteristics With Survival In Patients With CS

Characteristic N Mean Survival (Range), Months χ2 p
Age 0.278 0.598
 <45 34 36.75 (5–67)
 ≥45 46 34.74 (13–84)
Sex 0.865 0.352
 Male 43 38.65 (6–84)
 Female 37 33.77 (5–67)
Differentiation 22.017 <0.001
 Well 58 40.51 (6–84)
 Moderate 12 28.39 (12–42)
 Poor 10 20.50 (5–38)
Tumor size 0.999 0.318
 <5 cm 24 39.58 (12–62)
 ≥5 cm 56 33.93 (5–84)
AJCC stage 35.621 <0.001
 I 29 49.47 (20–84)
 II 32 32.53 (6–67)
 III 8 17.20 (13–22)
 IV 11 25.40 (5–61)
Enneking stage 17.776 <0.001
 I 55 40.85 (6–84)
 II 15 23.83 (13–35)
 III 10 25.83 (5–61)
Metastasis 5.459 0.019
 No 69 37.69 (6–84)
 Yes 11 25.74 (5–61)
Invasion 6.134 0.013
 No 13 76.08(18–84)
 Yes 67 57.82(5–67)
EAAT1 5.682 0.017
 – 38 41.64 (16–84)
 + 42 30.48 (5–67)
DHFR 5.942 0.015
 – 42 40.56 (6–84)
 + 38 29.77 (5–62)
Fetuin-A 5.212 0.022
 – 40 40.66 (16–67)
 + 40 31.07 (5–84)

Abbreviations: CS, chondrosarcoma; EAAT1, excitatory amino acid transporter 1; DHFR, dihydrofolate reductase; N, number; AJCC, American Joint Committee on Cancer.