Effect of cognitive behavior therapy combined with exercise intervention on the cognitive bias and coping styles of diarrhea-predominant irritable bowel syndrome patients

Figure 4 Pain Coping Style Questionnaire scores in each experimental group before and after intervention. "a or b" is the comparison between the CBT+E group and the control group at each time point (^aP < 0.05, ^bP < 0.01); "c or d" is the intragroup comparison before and after the intervention at each time point (^cP < 0.05, ^dP < 0.01).