Table 3

Association of asthma control status and therapy with risk of community-acquired Escherichia coli bloodstream infection

Asthma characteristicsTotal (n=518)Unadjusted OR (95% CI), p ValueAdjusted OR* (95% CI), p Value
Inhaled corticosteroid therapy (ICS)p=0.009†p=0.079†
 No asthma465 (90%)ReferentReferent
 Asthma without ICS35 (7%)1.90 (0.88 to 4.09)1.99 (0.67 to 5.94)
 Asthma with ICS18 (3%)7.00 (1.59 to 30.80)5.33 (0.90 to 31.66)
Asthma status‡p=0.005†p=0.067†
 No asthma465 (90%)ReferentReferent
 Remission or inactive asthma17 (3%)1.25 (0.45 to 3.50)1.25 (0.25 to 6.30)
 Active or current asthma36 (7%)4.37 (1.80 to 10.62)3.89 (1.23 to 12.28)
  • *Adjusted variables included all factors reported in the multivariable model (see table 2) except for dichotomous asthma status.

  • †p Value for overall comparison.

  • ‡Active or current asthma was defined as the presence of asthma-related events including asthma symptoms, or use of asthma medications, and outpatient/emergency department/hospitalisation for asthma within 1 year prior to index date of E coli BSI; remission of asthma was defined as the absence of asthma-related events >3 years prior to index date; inactive (not current) asthma was defined as the presence of asthma-related events within 1–3 years prior to index date.