Journal of Occupational Medicine and Toxicology

Table 2 Vibration perception thresholds in patients with carpal tunnel syndrome (CTS) and in healthy controls

From: Vibration thresholds in carpal tunnel syndrome assessed by multiple frequency vibrometry: a case-control study

Index finger	8 Hz	16 Hz	32 Hz	64 Hz	125 Hz	250 Hz	500 Hz
CTS (n = 66)	108.6[4.9]	115.9[5.1]	117.5[7.8]	109.0[11.7]	110.3[10.3]	120.0[11.3]	133.4[13.1]
Controls (n = 66)	105.0[6.6]	112.5[7.7]	113.1[6.1]	103.1[7.0]	102.0[9.7]	110.1[12.7]	125.9[13.2]
P-value	< 0.001	0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
Little finger	8 Hz	16 Hz	32 Hz	64 Hz	125 Hz	250 Hz	500 Hz
CTS (n = 66)	106.9[7.1]	115.1[7.0]	120.1[7.2]	111.2[10.1]	108.6[9.5]	115.4[14.5]	127.6[14.8]
Controls (n = 66)	105.0[5.1]	111.9[4.7]	115.4[10.1]	107.4[9.8]	104.1[11.2]	111.0[10.0]	125.9[16.2]
P-value	0.009	0.005	< 0.001	< 0.001	0.001	0.005	0.17

Vibration perception thresholds are expressed in dB. Data are median [IQR]. P-values are based on Wilcoxon’s signed-rank test
Values in italics represent statistically significant differences

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