Table 2.

Pure tone audiometry results of subjects with pSS and controls

Frequency range	Ear side	pSS,mean ± SD	Controls,mean ± SD	P
Low-frequency average(dB HL) (125, 250, 500 Hz)	Right	9.39 ± 6.29	4.39 ± 3.46	<0.001*
	Left	10.41 ± 4.54	4.30 ± 3.71	<0.001*
Middle-frequency average(dB HL) (500, 1000, 2000 Hz)	Right	14.30 ± 7.18	6.11 ± 4.17	<0.001*
	Left	15.64 ± 5.72	5.41 ± 3.21	<0.001*
High-frequency average(dB HL) (4000, 6000, 8000 Hz)	Right	21.52 ± 9.58	5.78 ± 3.49	<0.001*
	Left	23.05 ± 8.90	6.48 ± 3.43	<0.001*
Very high-frequency average(dB HL) (9000, 10,000, 11,200, 12,500 Hz)	Right	45.62 ± 17.60	22.15 ± 7.49	<0.001*
	Left	44.20 ± 17.26	22.95 ± 9.03	<0.001*

*P < 0.05 (independent samples t-test).