Fig. 3.

Health-related quality of life score according to the presence or absence of sleep disturbances in IBD patients. All scores, as well as two summary component scores, were significantly lower in patients with sleep disturbances than patients without sleep disturbances. Data are represented as mean. White bars and black bars are used to represent the mean scores of patients without sleep disturbances and patients with sleep disturbances, respectively. *p < 0.01, **p < 0.05 versus patients without sleep disturbances. PF physical functioning; RE, role physical; BP bodily pain; GH general health perception; VT vitality; SF, social functioning; RE role emotional; MH mental health; PCS physical component summary; MCS mental component summary