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. 2020 Jan;6(Suppl 1):S186–S196. doi: 10.21037/jss.2019.11.15

Table 3. Comparison of the JOA score and improvement rate between two groups before and after the operation.

Treatment	JOA score				JOA improvement rate
Treatment	Preop	Three months postop	One year postop		Three months postop	One year postop
Spinal endoscopy group	9.53±1.06	14.27±0.92	14.61±1.03		62.99±13.14	67.59±14.80
ACDF group	9.52±0.96	14.47±0.91	14.73±0.85		65.71±12.38	69.37±11.08
t	0.463	0.326	0.806		1.061	1.618
P	0.646	0.746	0.425		0.295	0.113

JOA, Japanese Orthopaedic Association; ACDF, anterior cervical decompression and fusion.