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Table 3 questions related to xerostomia during meals

From: Parotid gland sparing IMRT for head and neck cancer improves xerostomia related quality of life

  Group Never % Sometimes % Frequent % Always % UV p value MV p value
Do you have a problem with the transport of solid food through your mouth? IMRT 32 39 18 11 < 0.001 < 0.001
  Control 12 27 41 21   
Do you have a problem with the transport of grounded food through your mouth? IMRT 67 19 11 3 < 0.001 0.001
  Control 40 27 24 10   
Do you have a problem with swallowing solid food? IMRT 32 38 20 10 < 0.001 < 0.001
  Control 15 24 33 28   
Do you have a problem swallowing grounded food? IMRT 62 19 16 3 0.007 0.02
  Control 42 23 27 9   
Do you experience a dry mouth during meals? IMRT 39 35 20 5 < 0.001 < 0.001
  Control 14 31 36 19   
Do you need to have a drink of water to swallow your food? IMRT 23 39 19 19 < 0.001 < 0.001
  Control 6 24 31 40   
Do you find it difficult to eat in front of others? IMRT 57 24 11 8 0.006 0.02
  Control 35 31 19 15   
   Solid % Grounded % Liquid %    
What type of diet do you have? IMRT 91. 6 3   0.03 0.3
  Control 79 12 10    
   Yes No     
Do you have to swallow more frequently then you used to? IMRT 66 34    0.2 0.2
  Control 78 21     
  1. Questions and answers related xerostomia esperienced during meals for IMRT group (n = 75) and control group (n = 87).
  2. UV: univariate tested (linear by linear association), MV: multivariate tested (ordinal regression, IMRT tested together with N stage, T stage, prior chemotherapy, prior surgery, interval between RT and questionnaire, current smoker yes/no)