Table 1

Baseline characteristics of subjects

ProfilesIntervention group (n=64)Control group (n=61)p value
Mean (SD) age (years)48.1(17.7)43.0 (19)0.13
Sex (% male)39%41%0.83
Occupation:
Pensioners34%20%
 Trade and clerical17%16%
 Para/professional11%15%0.42
 Students8%11.4%
 Others30%38%
Education:
Primary23%7%
 Secondary57%61%0.077
 Tertiary20%33%
Median (range) cigarettes (pack years)17.5 (0.2–75)8.9 (0.05–60)0.53
Atopy (%)83%86%0.61
Age at onset of asthma
0–1756%57%
 18–3011%16%0.33
 31–459%15%
 46–6920%8%
 >693%3%
Mean (SD) FEV1 (% predicted)54 (19)55 (19)0.76
  • FEV1 = forced expiratory volume in one second.