Table 4 Logistic multivariable analysis for poor adherence to weekly low-dose cisplatin

Gender

 Male

Reference

 Female

0.92

0.25–3.16

Smoker

 Never

Reference

 Former

1.70

0.59–5.17

 Current

3.25

0.81–14.09

Age

 < 65

Reference

 65 or older

1.27

0.53–3.07

KPS

 90–100

Reference

 < 90

2.67

1.10–6.65

Race

 White

Reference

 Other

3.09

0.92–11.56

BMI

 Normal

Reference

 Underweight

6.89

0.43–218

 Overweight

1.7

0.58–5.23

 Obese

1.7

0.49–6.25

 Not available

 < 0.001

NA-1.63e122

Site

 Oropharynx

Reference

 Larynx

1.63

0.48–5.61

 Oral cavity

2.04e7

 < 0.001-NA

 Other

1.09

0.32–3.61

T staging

 1–2

Reference

 3–4

1.22

0.48–3.06

N staging

 0–1

Reference

 2–3

0.72

0.22–2.34

HPV

 Negative

Reference

 Positive

1.88

0.48–8.19

 Not available

1.01

0.30–3.56