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Table 3 Comparison of survival in different groups of patients

From: Complete remission of metastatic osteosarcoma using combined modality therapy: a retrospective analysis of unselected patients in China

Items

Patients with Resections

(N = 42)

Patients with Radiotherapy

(N = 79)

Patients with combination of resections and radiotherapy

(N = 6)

p for survival

2-year no local recurrence survival rate [±SD]

81.0% [±7.1%]

92.8% [±3.1%]

66.7%[±36.7%]

0.652

Local relapse of nodules without new lesions

2/42 (4.8%)

1/79 (1.3%)

1/6 (16.7%)

N/Aa

Local relapse of nodules with new lesions

6/42 (14.3%)

10/79 (12.7%)

1/6 (16.7%)

N/Aa

Progression without local relapse

19/42 (45.2%)

49/79 (62.0%)

3/6 (50.0%)

 

Events for progression in total

27/42 (64.3%)

60/79 (75.9%)

5/6 (83.3%)

 

From resections/radiotherapy to any event (median, Q1, Q3) months

10.0 (4.1, 17.1)

10.1 (5.8, 14.5)

N/A

0.755

From resections/radiotherapy to death (mean, 95%CI)b months

37.6 (32.5, 42.7)

67.0 (58.7, 75.3)

21.5 (17.3, 25.7)

0.712

  1. aN/A data not available
  2. bmedian overall survival has not reached yet, thus we use mean overall survival to replace the data