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Table 4 Multivariable Cox regression analysis for PFS including cumulative cisplatin dose; landmark analysis only including patients alive 8 weeks after end of treatment

From: 3-weekly or weekly cisplatin concurrently with radiotherapy for patients with squamous cell carcinoma of the head and neck – a multicentre, retrospective analysis

Factor

Hazard Ratio

95% Confidence interval

p-value

Cumulative cisplatin dose

0.92

0.65–1.29

0.641

Gender

1.10

0.74–1.65

0.617

Age at diagnosis

1.01

0.99–1.03

0.089

Hypopharyngeal localisation

0.88

0.56–1.37

0.582

Smoking history

2.25

1.13–4.47

0.02