Efficacy and Predictors for Biofeedback Therapeutic Outcome in Patients with Dyssynergic Defecation

Table 1

Scoring system for symptoms of DD.

Grading/score	Defecation interval (days)	Straining	Sensation of incomplete evacuation	Sensation of blockage	Painful defecation	Stool consistency
0	1-2	None	None	None	None	BSS: 4–7
1	3	Occurs occasionally	Occurs occasionally	Occurs occasionally	Occurs occasionally	BSS: 3
2	4-5	Occurs during >25% of defecations	Occurs during >25% of defecations	Occurs during >25% of defecations	Occurs during >25% of defecations	BSS: 2
3	>5	Occurs during >50% of defecations	Occurs during >50% of defecations	Occurs during >50% of defecations	Occurs during >50% of defecations	BSS: 1

DD = dyssynergic defecation; BSS = Bristol stool scale.