Fig. 1From: Work schedule characteristics associated with sleep disturbance among healthcare professionals in Europe and South Korea: a report from two cross-sectional surveysThe odds ratios of work schedule characteristics for causing sleep disturbance among healthcare professionals. a Univariate logistic regression model. b Forward stepwise multiple logistic regression analysis (p < .05 for inclusion). All models are adjusted by age, sex, and education level. CI: confidence intervalBack to article page