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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