Characteristics

≤59 years

≥60 years

p-Value

Number

59

10

Age (years)

33.3 ± 11.4

66.1 ± 4.7

-

Sex: Male/Female

30/29

5/5

0.7699

Location: Extremity/Axial

53/6

10/0

0.5823

Size (mm)

51.1 ± 16.1

64.4 ± 20.8

0.0236

Campanacci grade

Grade I/II/III/Unknown

11/27/12/9

1/1/4/4

0.0830

Pain: Present/None

56/3

8/2

0.3064

Pathological fracture: Present/None

11/48

3/7

0.6888

Surgical treatment: Present/None

55/4

9/1

0.7670

Surgical methods

0.9475

-Curettage and adjuvant therapy

40

7

-Excision

7

1

-Curettage only

8

1

Denosumab before surgery: Present/None

5/50

3/6

0.1349

Local recurrence: Present/None

19/36

3/6

0.7584

Time to local recurrence (months)

38.5 ± 56.0

15.0 ± 12.2

0.4860

Distant metastasis: Present/None

4/55

2/8

0.4442

Follow-up period (months)

83.1 ± 78.2

77.8 ± 73.7

0.8443

Outcome at the last follow-up

Alive without disease/Alive with disease/Dead

51/5/3

8/2/0

0.4340