Table 3.

Comparison of CCS, PAC-QoL, and Pain NRS Between the 2 Groups (Mean ± SD).

		Week 0a	Week 1b	Week 2b	Week 3c	Week 4c
CCS	IFC group (n = 58)	14.16 ± 2.03	11.40 ± 2.13	9.18 ± 1.81	9.72 ± 1.59	9.81 ± 1.67
	Control group (n = 60)	13.93 ± 1.83	11.63 ± 1.98	9.56 ± 1.79	10.04 ± 1.47	11.12 ± 1.73
	P1 value	.397	.428	.142	.148	.000
PAC-QoL	IFC group (n = 58)	39.15 ± 4.83	32.47 ± 4.84	27.78 ± 5.89	29.15 ± 6.16	29.83 ± 6.64
	Control group (n = 60)	38.89 ± 4.37	33.53 ± 4.97	29.10 ± 6.02	30.36 ± 6.88	31.87 ± 6.58
	P2 value	.688	.130	.119	.195	.031
NRS	IFC group (n = 58)	3.29 ± 0.66	3.16 ± 0.60	2.88 ± 0.63	2.84 ± 0.62	2.77 ± 0.49
	Control group (n = 60)	3.40 ± 0.65	3.28 ± 0.59	3.11 ± 0.68	3.02 ± 0.64	2.96 ± 0.57
	P3 value	.221	.170	.013	.041	.011

Abbreviations: CCS, Cleveland Constipation Scales; PAC-QoL, Patient Assessment of Constipation Quality of Life; NRS, pain Numeric Rating Scales; IFC, interferential current.

^aOutcomes at baseline.

^bOutcomes of treatment on.

^cOutcomes of treatment off.