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Table 5 Univariate and multivariate analysis of the elderly MPM patients

From: Clinical-pathological characteristics and prognostic factors for malignant peritoneal mesothelioma in the elderly

Variable

Univariate analysis

Multivariate analysis

Log-rank χ2 test

P-value

HR (95% CI)

P value

Insurance status

26.663

 < 0.001

  

Insured

  

Reference

 

Uninsured

  

5.187 (1.628–16.524)

0.005

Unknown

  

1.326 (1.100–1.600)

0.003

Histology

58.350

 < 0.001

  

Epithelioid

  

Reference

 

Biphasic

  

2.279 (1.339–3.877)

0.002

Sarcomatoid

  

3.913 (2.347–6.523)

 < 0.001

Unknown

  

2.301 (1.400–3.782)

0.012

Grade

39.596

 < 0.001

  

Well differentiated

  

Reference

 

Moderately differentiated

  

1.978 (0.811–4.824)

0.134

Poorly differentiated

  

3.900 (2.194–6.933)

 < 0.001

Undifferentiated

  

2.430 (1.038–5.689)

0.041

Unknown

  

2.301 (1.400–3.782)

0.001

Stage

23.936

 < 0.001

  

Localized

  

Reference

 

Regional

  

1.244 (0.855–1.811)

0.254

Distant

  

1.735 (1.255–2.401)

0.001

Unknown

  

1.165 (0.792–1.713)

0.438

Surgery

43.605

 < 0.001

  

Cancer-directed surgery

  

Reference

 

No cancer-directed surgery

  

1.733 (1.433–2.095)

 < 0.001

Unknown

  

0.857 (0.435–1.689)

0.656

Chemotherapy

18.157

 < 0.001

  

Yes

  

Reference

 

No or unknown

  

1.532 (1.282–1.831)

 < 0.001

  1. Significant P values shown in bold
  2. MPM, malignant peritoneal mesothelioma; HR, hazard ratio; CI, confidential interval