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Table 3 Pooled HRs 95 % Cl for toxicity between CRT & BRT

From: Survival, recurrence and toxicity of HNSCC in comparison of a radiotherapy combination with cisplatin versus cetuximab: a meta-analysis

Comparison

Adverse event/ Toxicity

Study N.

Model

HR 95 % [Cl]

P value

Heterogeneity (p ,I2)

Conclusion

CRT vs. BRT

Mucositis

7

Fixed

0.05 [-0.09, 0.19]

p=0.493

P = 0.45; I² = 36.9 %

Negative

CRT vs. BRT

Dysphagia

5

Fixed

-0.07 [-0.35, 0.21],

p=0.63

P = 0.89; I² = 0 %

Negative

CRT vs. BRT

Xerostomia

2

Fixed

0.51 [0.09, 2.95],

p=0.46

P = 0.17; I² = 46 %

Negative

CRT vs. BRT

Laryngeal edema

2

Fixed

0.91 [0.71, 1.18]

p=0.49

P = 0.89; I² = 0 %

Negative

CRT vs. BRT

Acute kidney injury

5

Fixed

-1.30 [-2.11, -0.49]

p=0.002

P = 0.32; I² = 0 %

Positive

CRT vs. BRT

Nausea or vomiting

4

Random

-1.30 [-2.66, 0.06],

p=0.061

P = 0.03; I² = 57.2 %

Negative

CRT vs. BRT

Radiation dermatitis

4

Random

0.31 [-0.45, 1.08]

p=0.419

P = 0.001; I² = 87.6 %

Negative

CRT vs. BRT

Acneiform rash

5

Random

3.49 [1.23, 5.74]

P=0.002

P = 0.87; I² = 81 %

Positive

CRT vs. BRT

Neutropenia

3

Fixed

-0.88 [-1.42, -0.33]

p=0.002

P < 0.00001; I² = 0.0 %

Positive

CRT vs. BRT

Ototoxicity

3

Fixed

0.16 [0.04, 0.69]

p=0.10

P = 0.60; I² = 0 %

Negative

CRT vs. BRT

Infectious

2

Fixed

3.31 [0.55, 19.87]

p=0.19

P = 0.59; I² = 0 %

Negative

CRT vs. BRT

Neuropathy

2

Fixed

0.80 [0.46, 1.41]

p=0.44

P = 0.37; I² = 0 %

Negative

CRT vs. BRT

Pain

2

Fixed

0.92 [0.80, 1.06]

p=0.24

P = 0.74; I² = 0 %

Negative

CRT vs. BRT

Leukopenia

4

Fixed

-0.76 [-1.16, -0.36]

P=0.001

P = 0.19; I² = 44.2 %

Positive

CRT vs. BRT

Late toxicity

4

Fixed

1.11 [0.83, 1.47],

p=0.48

P = 0.53; I² = 0 %

Negative

CRT vs. BRT

Total toxicity

21

Random

-0.34 [-0.72, 0.04]

P=0.079

P < 0.00001; I² = 91.7 %

Negative

  1. CRT cisplatin-based chemoradiotherapy, BRT cetuximab-based bioradiotherapy, N number, CI confidence interval, HR hazard ratio, CRT chemoradiothrapy, BRT bioradiothrapy