Fig. 1

Bar chart illustrating the difference and percentage between characteristics and co-morbid factors in (A and B) UU+ and UU− groups, and (C and D) BPD+ and BPD− groups. The asterisks symbol indicates significant differences *P ≤ 0.05, **P < 0.01, ***P < 0.001 and NS, not significant (P > 0.05) .