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Table 1 Prevalence of allergic rhinitis ever, nasal blocking and runny nose symptoms by age, sex and area.

From: Allergic rhinitis in northern vietnam: increased risk of urban living according to a large population survey

Symptom or condition   21-45 y   46-70 y   All Difference by (p -value)   
   M W M W   Sex Age Area
Allergic rhinitis ever Hoankiem 29.0 28.9 29.3 31.7 29.6 0.605 0.443 < 0.001
  Bavi 9.0 10.0 10.6 11.0 10.0 0.422 0.209  
Nasal blocking Hoankiem 38.4 39.4 40.1 43.7 40.2 0.324 0.167 < 0.001
  Bavi 26.7 36.2 27.5 32.3 31.0 < 0.001 0.293  
Runny nose Hoankiem 36.1 40.1 39.5 40.7 39.0 0.217 0.360 0.754
  Bavi 35.0 43.4 38.0 41.3 39.4 < 0.001 0.806  
  1. Difference (p-value) by sex, age and area.