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Table 2 Percent distributions of asthma symptoms and health services use at baseline and 12-month follow-up by smoking status

From: Results from a community-based program evaluating the effect of changing smoking status on asthma symptom control

  Baseline 12-Month Follow-up
Smokers Ex-Smokers p-value Non-Smokers New Smokers p-value Smokers Ex-Smokers p-value Non-Smokers New Smokers p-value
Number of Patients 122 15   366 16   122 15   366 16  
Health Status
 Fair-Poor Health rating 43.7 28.6   72.7 53.3   35.5 13.3   16.4 31.3  
 Less active 45.1 33.3   62.3 56.3   42.6 33.3   25.3 31.3  
Asthma Control
Symptoms (last 4 weeks)
 Wheeze 80.3 80.0   63.8 87.5   66.4 33.3 * 48.9 81.3 *
 Shortness of Breath 82.0 66.7   76.8 93.8   63.9 53.3   60.4 75.0  
 Chest Tightness 77.1 53.3   68.0 81.3   60.7 13.3 ** 50.3 62.5  
 Cough 85.3 73.3   68.6 75.0   78.7 66.7   56.9 62.5  
 Night-time Symptoms 72.7 66.7   61.7 75.0   54.1 13.3 * 40.2 68.8 *
 Day-time Symptoms 96.7 93.3   90.7 93.8   90.2 80.0   80.3 100.0  
 > 1 Asthma Attack in Last 6 months 81.7 61.5   79.3 76.9   63.9 33.3   56.6 60.0  
Acute Health Services Use (last 6 months)
 Any Urgent Visit 12.3 33.3 * 18.0 18.8   16.4 13.3   13.1 18.8  
 ER Visits 1.6 6.7   8.2 18.8   8.2 6.7   6.8 0.0  
 Walk-in Clinic Visits 11.5 26.7   12.9 0.0   8.2 13.3   7.1 18.8  
School/Work Absenteeism (last 4 weeks)
 Missed Work/School 18.5 30.8   8.6 40.0 * 10.7 0.0   10.1 13.3  
Asthma Management
 Received asthma education 43.4 33.3   39.9 43.8   24.8 13.3   23.2 62.5 *
 Given an action plan 9.5 6.7   19.8 25.0   34.2 40.0   31.5 37.5  
 Regular peakflow monitoring 16.5 40.0 * 24.5 25.0   40.3 40.0   49.5 43.8  
 Spirometry 76.3 78.6   69.3 60.0   93.3 100.0   96.4 87.5  
Medication Use
 Preventer use 73.8 86.7   71.0 81.3   79.5 73.3   73.5 75.0  
 Reliever use 82.0 86.7   86.6 87.5   85.3 80.0   83.3 93.8  
  1. *p<0.05, ** p<0.001.