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Table 1 Characteristics of patients and patients with chemosensitive, chemoresistant in osteosarcoma

From: Circ_0001721 enhances doxorubicin resistance and promotes tumorigenesis in osteosarcoma through miR-758/TCF4 axis

Characteristics Patients (n = 51) Chemosensitive (n = 51) Chemoresistant (n = 51)
Gender
 Female 25 26 23
 Male 26 25 28
Age (years)
  < 50 28 25 24
  ≥ 50 23 26 27
Histological type
 Well, moderate 26 27 25
 Poor 25 24 26
TNM stage
 I–II 16 20 21
 III–IV 35 31 30
Tumor size
  ≤ 5 cm 32 33 30
 > 5 cm 19 18 21
Lymph node metastasis
 N0–N1 22 20 23
 N2–N3 29 31 28
Distant metastasis
 Absence 31 33 30
 Present 20 18 21