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Table 3 Multivariable analysis of overall survival and cancer-specific survival in all patientsa

From: Characteristics and prognosis of primary pulmonary osteosarcoma: a pooled analysis

Characteristics

OS

CSS

HR (95% CI)

P value

HR (95% CI)

P value

Size (cm)

 ≤ 7

Ref

 

Ref

 

 > 7

2.98 (1.21–7.34)

0.018

3.08 (1.09–8.67)

0.033

Microscopic findings of osteoid

 Found

Ref

 

Ref

 

 No/NA

2.11 (1.01–4.42)

0.048

1.68 (0.74–3.79)

0.215

Surgery

 None

Ref

 

Ref

 

 Yes

0.20 (0.09–0.45)

< 0.001

0.14 (0.05–0.36)

< 0.001

Chemotherapy

 None

Ref

 

Ref

 

 Yes

0.57 (0.21–1.56)

0.276

0.74 (0.26–2.08)

0.571

  1. OS overall survival, CSS cancer-specific survival, HR hazard ratio, CI confidence interval, Ref. reference, NA not available
  2. aPatients with unknown survival status or time were excluded for analysis