Table III.

Initial manometric findings in children with chronic constipation

Parameter	Values
Resting pressure [mm Hg]:
Min.–max.	15.40–76.50
Mean ± SD	54.82 ±18.90
Median	49.50
Squeeze pressure [mm Hg]:
Min.–max.	67.80–200.0
Mean ± SD	149.13 ±40.16
Median	150.30
First sensation [ml]:
Min.–max.	10.0–120.0
Mean ± SD	43.0 ±27.87
Median	40.0
First urge [ml]:
Min.–max.	20.0–200.0
Mean ± SD	122.80 ±38.51
Median	100.0
Intense urge [ml]:
Min.–max.	110.0–400.0
Mean ± SD	217.0 ±72.77
Median	195.0
Maximum tolerable volume [ml]:
Min.–max.	140.0–400.0
Mean ± SD	248.0 ±72.90
Median	225.0