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Table 3 Prevalence (%) by age, sex and area.

From: West Sweden Asthma Study: Prevalence trends over the last 18 years argues no recent increase in asthma

  Age (years) Gender    Area  
Symptom or disease 16-25 26-35 36-45 46-55 56-65 66-75 test for trend M W p-value Total Gothen-burg West Gothia p-value
Ever asthma 11.2 12.2 10.2 8.5 8.2 7.6 < 0.001 8.7 10.5 < 0.001 9.7 9.9 9.5 0.330
Physician-diagnosed asthma 9.6 10.2 8.4 7.2 7.4 7.1 < 0.001 7.4 9.1 < 0.001 8.3 8.4 8.3 0.759
Asthma medicine 9.3 8.9 8.3 8.3 8.2 8.9 0.293 6.8 10.1 < 0.001 8.6 8.7 8.5 0.780
Rhinitis 27.8 33.5 31.5 27.4 22.4 16.1 < 0.001 26.0 27.6 0.020 26.9 28.3 25.6 < 0.001
Attacks of SOB 9.3 9.9 9.8 9.3 9.0 10.0 0.764 7.5 11.2 < 0.001 9.5 9.9 9.1 0.066
Recurrent wheeze 5.0 5.4 6.3 7.8 7.9 8.8 < 0.001 6.8 6.9 0.976 6.8 7.2 6.5 0.056
Any wheeze 16.0 16.9 16.3 17.2 16.7 16.1 0.850 15.3 17.6 < 0.001 16.6 17.3 15.9 0.014
Wheeze with breathlessness 10.1 10.9 10.8 11.3 10.4 9.7 0.633 9.1 11.8 < 0.001 10.6 11.1 10.1 0.030
Wheeze without cold 8.6 9.9 8.9 10.2 9.7 9.8 0.137 8.9 10.1 0.008 9.5 10.1 9.0 0.012
Wheezing with breathlessness apart from cold 5.8 6.3 5.9 6.2 5.7 5.8 0.678 5.3 6.4 0.002 5.9 6.4 5.5 0.013
Longstanding cough 13.3 11.3 11.1 10.7 11.3 11.3 0.056 10.2 12.4 < 0.001 11.4 12.1 10.8 0.004
Sputum production 15.6 13.0 12.1 12.0 12.8 15.7 0.617 13.1 13.5 0.429 13.3 14.4 12.3 < 0.001
Chronic productive cough 4.0 5.0 5.4 6.7 6.8 9.0 < 0.001 6.1 6.1 1.000 6.1 6.4 5.7 0.043
Dyspnoea 3.5 3.2 4.5 6.4 9.9 12.9 < 0.001 4.8 8.1 < 0.001 6.6 6.7 6.5 0.611
  1. Difference (p-value) by age, sex and area.