Table 6 Cox prognostic models for TILs and OS for the cohort of patients whose TILs were evaluated at the metastatic site (=57 patients)

From: Prognostic impact of tumor-infiltrating lymphocytes in HER2+ metastatic breast cancer receiving first-line treatment

Variable

Univariate HR (95% CI)

p-Value

Variable

Adjusted HR (95% CI)

p-Value

Age (continuous)

0.98 (0.94-1.03)

0.386

Age (continuous)

0.99 (0.95-1.05)

0.937

Visceral disease

  

Visceral disease

  

No

Reference

 

No

Reference

 

Yes

1.34 (0.47-3.78)

0.583

Yes

4.89 (1.08-22.0)

0.039

Site of Metastasis

  

Site of Metastasis

  

Lung

Reference

 

Lung

Reference

 

Liver

1.22 (0.24-6.29)

0.816

Liver

0.87 (0.12-6.24)

0.889

Bone

3.26(0.63-16.93)

0.161

Bone

5.55 (0.61-50.76)

0.129

Lymph node

1.96 (0.36-10.76)

0.438

Lymph node

1.46 (0.21-10.20)

0.702

Soft Tissue

1.16(0.16-8.34)

0.880

Soft Tissue

1.87 (0.21-16.86)

0.575

HR

  

HR

  

Negative

Reference

 

Negative

Reference

 

Positive

2.44 (0.91-6.51)

0.076

Positive

2.04 (0.67-6.16)

0.206

TILs

  

TILs

  

High (>5%)

Reference

 

High (>5%)

Reference

 

Low (≤5%)

3.18 (1.19- 8.50)

0.021

Low (≤5%)

2.97 (0.90-9.87)

0.075

  1. At univariate analysis, women with low TILs had worse OS (HR = 3.18, 95% CI: 1.19–8.50, p = 0.021, and when adjusting for age, visceral disease, hormonal receptor status, and site of metastases the association of TILs with OS was at limit of statistical significance (HR = 2.97,95% CI: 0.90–9.87, p = 0.075).
  2. CI confidence interval, HR hormone receptor, OS overall survival, TILs tumor-infiltrating lymphocytes.