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Table 4 Hazard ratios of the different variables calculated with multivariate analysis

From: Potential risk factors for jaw osteoradionecrosis after radiotherapy for head and neck cancer

Variable

Hazard ratio

95 % confidence interval

CLR

p-value

sex

0.89

0.42–1.90

4.5

0.76

Chemotherapy

1.19

0.67–2.14

3.2

0.55

Dentition (dentulous vs. edentulous)

1.76

0.93–3.33

3.6

0.08

Oropharynx

2.76

0.73–10.38

14.2

0.13

Tongue base

1.94

0.32–11.67

36.5

0.47

Oral cavity

4.69

1.33–16.52

12.4

0.02

Parotid gland

3.04

0.48–19.23

40.1

0.24

Bone surgery

5.87

3.09–11.19

3.6

<.0001