Table 2.

Comparison of the IPSS in each group pre- and posttreatment.

Item	DI group (n = 60)			SI group (n = 60)
	Pre	Post	a P value	Pre	Post	b P value
Total IPSS	22.08 ± 5.44	11.57 ± 5.89	<0.001	20.50 ± 5.40	15.17 ± 5.51	<0.001
Incomplete emptying	4.28 ± 0.99	2.25 ± 1.73	<0.001	4.05 ± 1.33	2.43 ± 1.27	<0.001
Frequency	3.27 ± 1.38	1.55 ± 1.38	<0.001	3.28 ± 1.37	2.63 ± 1.50	0.004
Interruption	3.12 ± 1.91	1.87 ± 1.64	<0.001	2.95 ± 1.49	2.45 ± 1.87	0.081
Urgency	2.67 ± 1.84	1.08 ± 1.20	<0.001	2.23 ± 1.88	1.83 ± 1.36	0.139
Weak stream	3.33 ± 1.65	2.12 ± 1.85	<0.001	3.25 ± 1.59	2.47 ± 1.72	0.002
Hesitancy	2.18 ± 1.94	0.63 ± 0.97	<0.001	2.15 ± 1.84	1.20 ± 1.47	0.001
Nocturia	3.23 ± 1.67	2.07 ± 1.48	<0.001	2.58 ± 1.25	2.15 ± 1.07	0.021

Notes: DI group: EA with deep insertion about 60–75 mm. SI group: EA with shallow insertion about 25–40 mm. IPSS: International Prostate Symptom Score; IPSS contains 7 urinary factors including incomplete emptying, frequency, interruption, urgency, weak stream, hesitancy, and nocturia. ^aP value: comparison between pre and post treatment in the DI group. ^bP value: comparison between pre- and posttreatment in the SI group.