Fig. 1.

Heatmap of the SF-36v2 component summary and domain scores by the severity of sleep difficulties. Adjusted means were calculated on the basis of the results of generalized linear models that controlled for age, sex, race/ethnicity, education, income, employment status, body mass index, smoking status, alcohol use, Charlson comorbidity index, and the presence of other atopic conditions. *P < 0.05 relative to patients with no sleep difficulties. MCS mental component summary, PCS physical component summary, SF-36v2 36-item Short Form Health Survey, version 2