Table 3.

Anorectal manometry characteristics and evacuation parameters of groups with constipation

Study group	Evacuation disorders (n=390)	Slow transit constipation (n=61)
Maximum anal resting pressure (mm Hg)	84.0±29.1 (n=382)	71.3±24.2 (n=44)
10–90th percentile	49.3–118.5	41.9–100.2
Men	92.1±32.6 (n=66)	68.2±24.0 (n=4)
Women	82.3±28.1 (n=316)	71.6±24.5 (n=40)
Maximum anal squeeze pressure (mm Hg)	144.3±60. 3 (n=379)	149.4±66.0 (n=44)
10–90th percentile	79.4–218.1	82.4–250.7
Men	202.5±79.0 (n=66)	230.5±85.3 (n=4)
Women	132.0±47.4 (n=313)	141.2±59.2 (n=40)
Rectoanal pressure difference (mm Hg)	−36.3±34.2 (n=92)	3.4±46.4 (n=12)
10–90th percentile	−79.3 to −3.0	−38.2 to 31.6
Men	−42.0±52.1 (n=23)	(n=0)
Women	−34.4±26.0 (n=69)	3.4±46.4 (n=12)
Added balloon weight (g)	447.8±192.3 (n=371)	25.3±67.0 (n=47)
10–90th percentile	0–586.0	0–188.0
Men	386.5±238.4 (n=66)	47.0±94.0 (n=4)
Women	461.0±178.5 (n=305)	23.2±65.1 (n=43)
Perineal descent (cm)	1.6±1.4 (n=94)	2.1±0.7 (n=5)
10–90th percentile	0.3–3.5	1.4–3.0
Men	1.5±1.1 (n=11)	1.4 (n=1)
Women	1.7±1.4 (n=83)	2.2±0.8 (n=4)
Change in anorectal angle (°)	7.0±13.4 (n=97)	1.0 (n=1)
10–90th percentile	−5.0–20.0
Men	8.5±9.5 (n=11)	(n=0)
Women	6.8±13.9 (n=88)	1.0 (n=1)

Data shown are mean±SD.