Frequency ofChlamydia in asthma versus nonasthma patient groups and with corticosteroid administration
| All patients | Asthma | Nonasthma | Steroid treatment | No steroid treatment | Asthma | |||
| Oral and inhaled steroids | Oral steroids | Inhaled steroids | ||||||
| Subjects | 182 | 128 | 54 | 103 | 79 | 21 | 22 | 39 |
| Chlamydia DNA positive | 124 (68) | 86 (67) | 41 (76) | 70 (68) | 54 (68) | 17 (81)¶ | 7 (32)¶ | 24 (62)¶ |
| Chlamydia culture positive | 75 (41) | 59 (46)#,¶ | 16 (30)#,¶ | 42 (41) | 33 (42) | 12 (57) | 13 (59) | 13 (33) |
Data are presented as n or n (%). #: p = 0.048 for asthma versus nonasthma (Fisher’s exact test); ¶: logistic regression confirmed association of asthma and culture positive (asthma (y/n) = culture (y/n)+steroids (y/n)+(culture×steroids (interaction)); p = 0.033 for asthma; p = 0.3171 for steroids; p = 0.3945 for interaction).