2.

不同组间震颤分析的结果

The results of tremor analysis in different groups

Items	Group 1 (n=25)	Group 2 (n=15)	Group 3 (n=30)	Statistics	P
Data are shown as x±s and n(%).
Peak frequency/Hz
At rest
Tremor side	5.38±0.70	5.27±0.78	6.59±1.65	F=4.422	0.040
Non-tremor side	2.89±2.18	4.94±0.70	5.33±2.49	F =6.007	0.001
Posture
Tremor side	6.38±0.71	6.16±1.47	6.87±2.36	F =3.095	0.304
Non-tremor side	4.32±2.14	5.68±2.08	5.07±3.04	F =0.995	0.322
Tremor amplitude/μV
At rest
Tremor side	162.69±172.79	204.01±148.72	133.63±189.42	F =0.555	0.557
Non-tremor side	136.68±90.86	185.62±110.19	138.43±169.47	F =0.413	0.664
Posture
Tremor side	216.2±94.41	300.5±233.76	187.33±131.96	F =0.722	0.400
Non-tremor side	185.4±174	230.95±134.22	201.86±93.19	F =0.361	0.699
Alternative ratio
At rest
Tremor side	18 (72.0)	14 (93.3)	6 (20.0)	χ2=29.307	<0.001
Posture
Tremor side	14 (56.0)	8 (53.3)	4 (13.3)	χ2=12.776	0.002
Harmonic resonance
At rest
Tremor side	12 (48.0)	9 (60.0)	4 (13.3)	χ2=12.042	0.002
Non-tremor side	7 (28.0)	6 (40.0)	2 (6.7)	χ2=7.597	0.022
Posture
Tremor side	4 (16.0)	4 (26.7)	8 (26.7)	χ2=1.037	0.595
Non-tremor side	2 (8.0)	4 (26.7)	4 (13.3)	χ2= 2.707	0.258