Table 5.

Comparison of the anal functions (x̅ ± sd)

Group	Control group (n=60)	Research group (n=60)	t	P
Length of anal canal (cm)
Before treatment	3.57±0.76	3.61±0.82	0.278	0.782
14 d after treatment	2.97±0.88***	2.51±0.69***	3.186	0.002
Anal canal resting pressure (mmHg)
Before treatment	45.21±7.14	46.88±6.84	1.308	0.193
14 d after treatment	49.31±8.05***	54.64±8.13***	3.609	0.000
Maximum diastolic pressure of anal canal (mmHg)
Before treatment	81.36±7.22	80.95±7.58	0.303	0.762
14 d after treatment	137.61±40.91***	168.47±39.22***	4.218	0.000
Maximum systolic pressure of anal canal (mmHg)
Before treatment	95.32±13.67	96.81±11.53	0.645	0.520
14 d after treatment	109.48±11.24***	125.66±15.09***	6.661	0.000

Note: Compared with the same group before the treatment;

^***P<0.001.