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Table 4 Relationship of post-treatment change in nNO concentration to the allergy testing results and to post-treatment changes in VAS scores for symptoms

From: Nasal nitric oxide in allergic rhinitis in children and its relationship to severity and treatment

Allergy testing

Change in nNO concentration

Median (interquartile range)

P a

H6 test

 Indoor allergens

 

0.932

  No

−102 (−204, −52)

 

  Yes

−93 (−187, −54)

 

 Outdoor allergens

 

0.403

  No

−89 (−180, −50)

 

  Yes

−133 (−217, −70)

 

Skin prick test

 

0.883

 Indoor allergens

  

  No

−91 (−202, −47)

 

  Yes

−111 (−193, −55)

 

 Outdoor allergens

 

0.904

  No

−93 (−193, −52)

 

  Yes

−113 (−204, −47)

 

Changes in visual analog scale (VAS) score

Correlation coefficient

P b

Overall VAS

0.123

0.237

Sneezing

0.023

0.823

Runny nose

0.300

0.003

Nasal obstruction

0.181

0.081

Nasal itchiness

0.174

0.093

  1. Mann–Whitney U testa and Spearman’s rank correlationb are implemented
  2. Italic value indicates statistical association with change in amount of NO, P < 0.05