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Table 2 Comparison of prevalence of diagnosed asthmatics and non-asthmatics for the total sample (n = 152) by demographic categories.

From: Screening for asthma in Cantonese-speaking immigrant children

  Diagnosed Asthmatics (n = 41) Non-asthmatics (n = 111) OR & 95% CI P value
Birthplace     
   Native-born 40.7% (33) 59.3% (48) 5.41 (2.29 – 12.80) <0.001
   Foreign-born 11.3% (8) 88.7% (63)   
Preferred Language     
   Cantonese 24.1% (21) 75.9% (66) 0.72 (0.35 – 1.47) 0.36
   English 30.8% (20) 69.2% (45)   
Paternal Education     
   Completed high school or above 25.4% (18) 74.6% (53) 0.75 (0.33 – 1.72) 0.66
   Did not complete high school. 31.1% (14) 68.9% (31)   
Maternal Education     
   Completed high school or above 31.1% (23) 68.9% (51) 2.14 (0.86 – 5.31) 0.09
   Did not complete high school 17.4% (8) 82.6% (38)   
Smoking     
   Smoker in the home 27.3% (15) 72.7% (40) 1.01 (0.48 – 2.13) 0.98
   Smoke-free home 27.1% (26) 72.9% (70)   
Body Mass Index (BMI)     
   ≥ 85 percentile 34.1% (15) 65.9% (29) 1.61 (0.75 – 3.51) 0.22
   <85 percentile 24.2% (24) 75.8% (75)   
Allergies     
   Allergic 35.7% (20) 64.3% (36) 2.06 (0.98 – 4.29) 0.05
   Non-allergic 21.3% (20) 78.7% (74)   
Family Asthma     
   Asthma 53.6% (15) 46.4% (13) 4.52 (1.91 – 10.72) <0.001
   No asthma 20.3% (25) 79.7% (98)   
FEV 1 and FVC     
   >80% 25.8% (16) 74.2% (46) 0.89 (0.27 – 2.95) 1.00**
   ≤80% 40.0% (2) 60.0% (3)   
  1. * Odds ratios were computed using Chi-Square tests and are reflective of the likelihood of being diagnosed with asthma for each of the stated demographic variables.
  2. **Fisher's exact test.