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. 2019 Apr 30;25(2):250–257. doi: 10.5056/jnm18032

Table 1.

Baseline Characteristics of Anorectal Pressure of Patients With Functional Constipation (N = 82)

Variables Values
Maximum resting pressure (mmHg) 76.3 ± 23.0
Mean resting pressure (mmHg) 69.2 ± 21.2
Maximum squeeze pressure (mmHg) 198.4 ± 75.6
HPZ length (cm) 3.4 ± 1.0
Duration of sustained squeeze (sec) 13.6 ± 7.0
Residual anal pressure (mmHg) 81.3 ± 34.3
Intrarectal pressure (mmHg) 50.8 ± 31.1
Rectoanal pressure differential (mmHg) −30.5 ± 3.6
Mean volume of first sensation (mL) 44.6 ± 27.5
Mean volume for desire to defecate (mL) 77.6 ± 35.0
Mean volume for urgency (mL) 109.0 ± 35.6
Maximum tolerable volume (mL) 158.0 ± 42.5

HPZ, high pressure zone.

Values were expressed as mean ± SD.