Factors involved in previous incidence of very severe asthma exacerbations, after adjusting for age, sex and presence of psychiatric morbidity#
| OR | 95% CI | p-value | |
| Level of education¶ | 0.017 | ||
| Primary | 0.261 | 0.101–0.672 | |
| Intermediate and higher | 0.509 | 0.171–1.516 | |
| Severe persistent asthma versus moderate, mild and intermittent asthma+ | 4.186 | 1.923–9.11 | <0.001 |
| Presence of alexithymia | 2.175 | 1.002–4.721 | 0.049 |
OR: odds ratio; CI: confidence interval. #: by logistic regression analysis; ¶: basic studies; +: Global Initiative for Asthma (GINA) classification 16.