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Table 3 Adjusted odds ratio (OR) of having pneumonia acquired during radiotherapy (PNRT) among different treatment modalities

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

Treatment n Cases OR* (95% CI)
  RT alone 6397 336 1.00 (reference)
  Neck lymph node dissection plus RT 1915 72 0.75 (0.58~0.98)
  CCRT alone 5961 303 1.12 (0.95~1.32)
  Neck lymph node dissection plus CCRT 1274 51 0.88 (0.65~1.20)
  1. *: After controlling for gender, age, level of hospital, stroke, gastroesophageal reflux disease, and Parkinson’s disease.
  2. CCRT concurrent chemoradiotherapy, RT radiotherapy.