Research Article

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

Table 7

Univariate analysis of predictors of outcome of BFT.

Variables

General information
 Age−0.0950.440
 Gender−0.1120.202
 Constipation duration0.1150.197
Symptoms
 Defecation interval−0.0620.683
 Straining−0.1210.149
 Sensation of incomplete evacuation−0.0920.450
 Sensation of blockage−0.1450.106
 Painful defecation−0.0400.849
 Stool consistency−0.2200.032
Psychological status
 SAS−0.1840.093
 SDS−0.3330.010
Quality of life indicators
 General health perception0.1350.116
 Physical functioning0.1120.202
 Physical role function0.2890.025
 Emotional role functioning0.1200.207
 Social role functioning0.1530.104
 Bodily pain0.0460.751
 Vitality0.1960.084
 Mental health0.2050.057
Lifestyle
 Physical activity−0.0790.666
 Work pressure−0.0890.490
 Poor sleep quality−0.0780.666
 Vegetable intake0.1450.106
 Fruit intake−0.0620.683
 Water intake−0.0950.468
 High-fat diet predilection0.0170.800
Anorectal physiology
 BET time−0.1880.091
 CTT−0.0620.711
 HR-ARM
 Anal resting pressure0.0660.705
 Maximum squeeze pressure−0.0300.761
 Rectal defecation pressure0.0820.650
 Intrarectal pressure0.0440.795
 Rectoanal pressure differential0.1970.090
 First sensation volume−0.2970.022
 Urgency volume−0.1780.091
 Maximum discomfort volume−0.0740.700
 DD subtype−0.0990.365

BFT = biofeedback therapy; SAS = Zung’s Self-Rating Anxiety Scale; SDS = Zung’s Self-Rating Depression Scale; BET = balloon expulsion test; CTT = colonic transit time.