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Table 1 Sociodemographic, clinical and health behavior characteristics of patients with head and neck cancer (N = 527)

From: Predictors of circulating INTERLEUKIN-6 levels in head and neck cancer patients

Factors Categories N (%)
Age (years) ≤ 50 55 (10.4)
>  50 ≤ 60 155 (29.4)
>  60 ≤ 70 197 (37.4)
>  70 120 (22.8)
Sex Female 112 (21.3)
Male 415 (78.8)
Current body mass index (kg/m2) <  18.5 18 (3.4)
≥ 18.5 < 30 415 (78.8)
≥ 30 94 (17.8)
Body mass index at 20 years (kg/m2) <  18.5 47 (8.9)
≥ 18.5 < 30 462 (87.7)
≥ 30 18 (3.4)
Marital status Not married 137 (26.0)
Married 390 (74.0)
Household income (per year) < $40,000 388 (73.6)
≥ $40,000 139 (26.4)
Karnofsky Performance Status (%) 90–100 485 (92.0)
60–80 42 (8.0)
Charlson Comorbidity Index 0 323 (61.3)
1 128 (24.3)
≥ 2 76 (14.4)
Diabetes No 488 (92.6)
Yes 39 (7.4)
Glottic cancer No 187 (35.5)
Yes 340 (64.5)
TNM clinical stage I 325 (61.7)
II 202 (38.3)
Tobacco consumption
(all tobacco products)
Never 26 (4.9)
Former 372 (70.6)
Current 129 (24.5)
History of alcohol abuse No 439 (83.3)
Yes 88 (16.7)
Sleep disturbance Not at all 285 (54.1)
A little 132 (25.0)
Quite a bit 62 (11.8)
Very much 48 (9.1)