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Table 6 Multivariable Cox regression analysis for PFS; whole cohort

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
Treatment regimen (weekly vs. 3-weekly) 0.89 0.62–1.26 0.515
Gender 1.11 0.74–1.66 0.744
Age at diagnosis 1.01 0.99–1.03 0.071
Hypopharyngeal localisation 0.88 0.57–1.38 0.603
Smoking history 2.29 1.15–4.53 0.017