Skip to main content

Table 1 Socio-demographic data between head and neck cancer patients with and without pneumonia acquired during radiotherapy (PNRT)

From: Incidence of pneumonia and risk factors among patients with head and neck cancer undergoing radiotherapy

  PNRT  
  No N=15,122 Yes N=772  
Variable n % n % p value
Men 12,629 83.5 689 89.3 < 0.0001
Age (years)      < 0.0001
  < 50 7635 50.5 238 30.8  
  50~64 5320 35.2 287 37.2  
  ≥ 65 2167 14.3 247 32.0  
  Mean (SD) 51.2 (12.1) 58.0 (13.2) < 0.0001
Hospital level      0.001
  Medical center 9799 64.8 523 67.8  
  Regional hospital 3475 23.0 189 24.5  
  District hospital / clinic 1848 12.2 60 7.8  
Treatment      
  Neck lymph node dissection 3066 20.3 123 15.9 0.003
  Gastrostomy 182 1.2 28 3.6 < 0.0001
  Concurrent chemotherapy 6881 45.5 354 45.9 0.85
Comorbidity      
  Dementia 41 0.3 4 0.5 0.28
  Stroke 418 2.8 46 6.0 <0.0001
  Parkinson’s disease 19 0.1 5 0.7 0.005
  GERD 664 4.4 51 6.6 0.004
  1. Fisher’s exact test.
  2. GERD gastroesophageal reflux disease.