Table 1—

Characteristics of the study subjects by number of measures

All SubjectsMeasures
>50≤50
Subjects n401921
Females20 (50.00)13 (68.42)7 (33.33)*
Age yrs39.2±7.840.9±6.437.6±8.7
Corticosteroid therapy
 None13 (32.50)8 (42.11)5 (23.81)
 Low dose9 (22.50)3 (15.79)6 (28.57)
 Medium dose10 (25.00)6 (31.58)4 (19.05)
 High dose8 (20.00)2 (10.53)6 (28.57)
Asthma severity#
 Intermittent3 (7.50)2 (10.53)1 (4.76)
 Mild persistent5 (12.50)2 (10.53)3 (14.29)
 Moderate persistent13 (32.50)6 (31.58)7 (33.33)
 Severe persistent19 (47.50)9 (47.37)10 (47.62)
Smokers14 (35.00)3 (15.79)11 (52.38)*
  • Data are presented as mean±sd or n (%) unless otherwise indicated. #: Global Initiative for Asthma classification of asthma severity. *: p<0.05 (Chi-squared test).