Table 2.

Investigation results and analysis

Question	Average score
	HoLEP	TURP
How strong was the auditory threshold up-regulated post-surgically?	0.8 ± 0.5	0.0 ± 0.0
How strong was your sleep disorder or dizziness?	0.6 ± 0.5	0.0 ± 0.0
How strong was the disturbance of your communication by noise?	2.2 ± 0.2a	0.0 ± 0.0
How strong was the disturbance of your concentration by noise?	0.8 ± 0.4a	0.0 ± 0.0
How strong have you felt uncomfortable after surgery because of the noise?	0.8 ± 0.5	0.0 ± 0.0

^a P < 0.05