Table 4 Physiological measurements in CRAI and non-CRAI groups in the left-lateral and erect positions
Left-lateral position | Erect position | P value* | |
|---|---|---|---|
CRAI (n = 30) | |||
Anal canal length, cm | 4.6 (3.2‒6.6) | 4.3 (2.2‒6.0) | 0.031 |
Maximum resting pressure, cm H2O | 51.5 (34.9‒124.8) | 58.9 (18.7‒151.1) | 0.023 |
Maximum squeeze pressure, cm H2O | 145.3 (65.1‒604.0) | 118.7 (59.0‒454.4) | 0.006 |
Defecation desire volume, ml | 85 (50‒250) | 138 (40‒300) | < 0.0001 |
Maximum tolerated volume, ml | 170 (80‒300) | 218 (60‒300) | < 0.0001 |
Non-CRAI (n = 50) | |||
Anal canal length, cm | 4.5 (2.5‒6.5) | 4.0 (1.8‒6.8) | 0.005 |
Maximum resting pressure, cm H2O | 58.5 (19.0‒114.4) | 65.2 (28.9‒156.0) | 0.001 |
Maximum squeeze pressure, cm H2O | 150.5 (45.7‒366.7) | 164.5 (44.0‒388.7) | 0.788 |
Defecation desire volume, ml | 80 (20‒280) | 120 (30‒280) | < 0.0001 |
Maximum tolerated volume, ml | 200 (70‒300) | 215 (30‒300) | 0.007 |