Table 4.

Correlation between baseline and change scores.

	Passive movement		Active movement		Modified Ashworth scale
Correlation coefficient	p-Value	Correlation coefficient	p-Value	Correlation coefficient	p-Value
Correlation between baseline and short-term change
Shoulder flexion	0.26	0.35	− 0.13	0.58	− 0.37	0.11
Shoulder abduction	− 0.20	0.48	− 0.17	0.48	− 0.49	0.03
Elbow flexion	− 0.17	0.54	− 0.62	0.004	− 0.46	0.04
Elbow extension	− 0.86	< 0.001	− 0.19	0.42	− 0.87	< 0.001
Forearm pronation	0.43	0.11	− 0.13	0.60	− 0.75	< 0.001
Forearm supination	0.57	0.03	0.24	0.31	− 0.52	0.02
Wrist flexion	0.06	0.82	− 0.27	0.24	− 0.61	0.004
Wrist extension	0.19	0.49	0.08	0.75	− 0.35	0.13
Correlation between baseline and long-term change
Shoulder flexion	0.20	0.58	− 0.40	0.18	− 0.48	0.09
Shoulder abduction	− 0.16	0.65	− 0.28	0.35	− 0.84	< 0.001
Elbow flexion	− 0.01	0.99	− 0.58	0.04	− 0.04	0.88
Elbow extension	− 0.70	0.03	− 0.18	0.55	− 0.85	< 0.001
Forearm pronation	− 0.18	0.62	− 0.65	0.017	− 0.47	0.10
Forearm supination	− 0.13	0.72	− 0.18	0.55	− 0.67	0.013
Wrist flexion	− 0.37	0.29	− 0.68	0.011	− 0.50	0.08
Wrist extension	− 0.18	0.63	− 0.22	0.47	− 0.39	0.19

Spearman's correlation for passive and active movement and modified Ashworth score between pre-injection baseline (T0) and short-term change (T1–T0), and baseline and long-term change (T3–T0).