Table 4.

Analysis of glucan and visits to the emergency department or urgent care for asthma

Variable	≥1 ED/Urgent Care Visit for Asthma
Unadjusted	OR (95% CI), P value
Glucan
Quartile 1	1.00
Quartile 2	0.44 (0.17–1.11), 0.08
Quartile 3	1.17 (0.47–2.90), 0.7
Quartile 4	2.82 (1.12–7.10), 0.03
Multivariate model*
Glucan
Quartile 1	1.00
Quartile 2	0.67 (0.22–1.98), 0.5
Quartile 3	2.32 (0.75–7.14), 0.14
Quartile 4	8.76 (2.70–28.4), <0.001
Household income ≥ $15,000/yr	0.12 (0.04–0.36), <0.001
Use of inhaled corticosteroids in the prior 6 mo	3.74 (1.50–9.35), 0.005
Peptidoglycan in house dust, μg/mg†	0.61 (0.42–0.89), 0.009

Definition of abbreviations: CI = confidence interval; ED = emergency department; OR = odds ratio.

^*Model additionally adjusted for age, sex, parental history of asthma, and exposure to ETS.

^†Peptidoglycan level was transformed to a logarithmic (log10) scale.