Increasing dietary fiber intake in terms of kiwifruit improves constipation in Chinese patients

Table 3 Anorectal physiology parameters before and after the kiwi fruit treatment in the constipated patients and healthy subjects

	Constipated patients			Healthy subjects
	Before treatment	After treatment	P value	Before treatment	After treatment	P value
Transit time in right segment (h)	11.6 ± 12	12.6 ± 12	0.77	4.2 ± 7	4.1 ± 6	0.55
Transit time in left segment (h)	23.3 ± 16	19.6 ± 13	0.23	6.0 ± 9	6.7 ± 8	0.97
Transit time in sigmoid-rectal segment (h)	19.5 ± 16	7.6 ± 7	< 0.0001	7.2 ± 11	3.4 ± 5	0.045
Total colonic transit time (h)	54.5 ± 29	39.6 ± 22	0.003	16.8 ± 23	14.1 ± 14	0.23
Rectal pressure (mmHg)	26.3 ± 18	30.4 ± 19	0.3	23.6 ± 19	27.2 ± 18	0.54
Upper anal canal pressure (mmHg)	51.9 ± 18	48.9 ± 29	0.67	49.1 ± 20	58.4 ± 30	0.33
Lower anal canal pressure (mmHg)	63.9 ± 22	67.9 ± 25	0.44	58.4 ± 23	74.4 ± 27	0.025
Simulated Defecation-Push Maneuver (rectum) (mmHg)	65.8 ± 45	90.8 ± 55	0.019	72.2 ± 50	88.2 ± 50	0.31
Simulated Defecation-Push Maneuver (upper anal canal) (mmHg)	98.6 ± 43	108.6 ± 43	0.5	96.1 ± 46	118.1 ± 66	0.29
Simulated Defecation-Push maneuver (lower anal canal) (mmHg)	101.3 ± 47	101.1 ± 56	1.0	77.8 ± 53	90.3 ± 64	0.43
Rectoanal inhibitory reflex (R.A.I.R.) (mL)	17.2 ± 7	11.3 ± 4	0.003	12.1 ± 4	12.2 ± 4	1.0
First sensation (mL)	39.0 ± 11	33.1 ± 9	0.03	30.5 ± 9	29.4 ± 6	0.61
Constant sensation/urge (mL)	68.7 ± 20	60.3 ± 20	0.049	52.7 ± 13	50.0 ± 6	0.46
Maximum tolerable volume (mL)	99.6 ± 35	85.1 ± 21	0.031	83.2 ± 14	78.9 ± 14	0.07