Interhemispheric Pathways Are Important for Motor Outcome in Individuals with Chronic and Severe Upper Limb Impairment Post Stroke

Table 2

Individual participant demographics and stroke characteristics.

ID	Stroke location	MSS	Age	FM-UL	WMFT-rate, NP	WMFT-rate, P	L MEP Rest	L TCI mean	NL TCI mean	PF-CC FA	PM-CC FA	M1-CC FA	L CST FA	NL CST FA
1	Subcortical	41	63	23	71.5	10.3	0	0.64	0.66	0.40	0.40	0.41	0.39	0.52
2	Cortical	91	61	16	83.0	11.7	0	0.73	0.74	0.23	0.13	0.20	0.31	0.49
3	Cortical	85	62	8	53.9	9.6	0	0.64	0.84	0.28	0.25	0.30	0.36	0.50
4	Cortical	94	57	7	50.6	9.6	0	0.52	—	0.30	0.29	0.34	0.35	0.45
5	Cortical	22	51	16	50.6	1.5	0	0.49	0.80	0.33	0.36	0.42	0.46	0.51
6	Cortical	25	69	11	46.6	0.9	0	0.64	0.81	0.30	0.29	0.30	0.33	0.50
7	Subcortical	21	65	15	45.7	9.3	0	0.60	0.80	0.36	0.35	0.35	0.37	0.46
8	Subcortical	22	57	16	75.9	17.1	0	0.82	0.83	0.38	0.40	0.41	0.45	0.53
9	Subcortical	94	36	11	61.0	14.3	0	0.88	0.80	0.37	0.29	0.22	0.26	0.49
10	Subcortical	145	64	16	62.8	9.9	1	0.79	0.91	0.35	0.36	0.43	0.47	0.50
11	Subcortical	23	72	16	71.8	7.9	0	0.76	0.93	0.28	0.36	0.38	0.45	0.42
12	Subcortical	33	33	18	146.8	20.1	0	0.74	—	0.41	0.42	0.42	0.33	0.55
13	Subcortical	47	51	29	62.3	19.0	0	0.72	0.77	0.40	0.41	0.43	0.44	0.58
14	Cortical	160	57	30	27.4	12.1	1	0.80	0.89	0.41	0.41	0.45	0.43	0.47
15	Subcortical	21	77	18	32.6	6.4	0	0.85	0.59	0.32	0.32	0.37	0.40	0.49
Mean	—	61.6	58.3	16.7	62.8	10.7	—	0.71	0.80	0.34	0.33	0.36	0.39	0.50
SD	—	47.0	12.02	6.6	27.9	5.5	—	0.12	0.10	0.05	0.08	0.08	0.06	0.04
Min	—	21.0	33.0	7.0	27.4	0.9	—	0.49	0.59	0.28	0.13	0.20	0.26	0.42
Max	—	160.0	77.0	30.0	146.8	20.1	—	0.88	0.93	0.41	0.42	0.45	0.47	0.58
1	Subcortical	155	76	49	48.17	34.11	1	1.00	0.68	0.32	0.29	0.36	0.39	0.52
2	Subcortical	23	60	54	54.77	39.90	1	0.62	0.67	0.32	0.32	0.42	0.51	0.51
3	Cortical	270	59	55	44.71	23.98	1	0.56	0.74	0.38	0.29	0.33	0.38	0.51
4	Subcortical	83	71	56	64.21	52.01	1	0.65	0.53	0.37	0.38	0.42	0.41	0.44
5	Cortical	94	64	56	55.27	46.88	1	1.00	0.67	0.36	0.22	0.13	0.42	0.48
6	Subcortical	15	69	57	62.82	52.99	1	0.69	0.63	0.40	0.41	0.45	0.45	0.53
7	Subcortical	82	67	59	79.77	62.95	1	0.65	0.67	0.34	0.33	0.40	0.46	0.52
8	Subcortical	142	73	60	76.42	57.58	1	0.57	0.61	0.40	0.37	0.40	0.39	0.49
9	Subcortical	35	85	60	40.72	34.49	1	0.44	0.69	0.34	0.31	0.35	0.41	0.49
10	Subcortical	18	79	61	54.93	45.00	1	1.00	1.00	0.33	0.33	0.40	0.45	0.49
11	Subcortical	81	76	62	63.57	64.07	1	0.78	0.82	0.37	0.36	0.41	0.45	0.41
12	Cortical	67	65	62	52.35	44.44	1	1.00	0.52	0.35	0.37	0.35	0.35	0.48
13	Subcortical	20	62	62	64.96	58.65	1	0.68	1.00	0.37	—	0.44	0.44	0.43
14	Subcortical	37	50	63	61.49	58.16	1	0.62	0.55	0.38	0.39	0.38	0.47	0.49
Mean	—	80.0	68.0	58.3	58.9	48.2	—	0.73	0.69	0.36	0.34	0.37	0.41	0.49
SD	—	71.0	9.2	4.0	11.1	12.0	—	0.19	0.15	0.03	0.05	0.08	0.06	0.03
Min	—	15.0	50.0	49.0	40.7	24.0	—	0.44	0.52	0.32	0.22	0.13	0.31	0.43
Max	—	270.0	85.0	63.0	79.8	64.1	—	1.00	1.00	0.40	0.41	0.45	0.51	0.53

CST: corticospinal tract; FA: fractional anisotropy; FM-UL: Fugl-Meyer upper limb; M1-CC: primary motor corpus callosum; min: minimum; max: maximum; MSS: months since stroke; L: ipsilesional; NL: contralesional; NP: nonparetic; P: paretic; PF-CC: prefrontal corpus callosum; PM-CC: premotor corpus callosum; SD: standard deviation; WMFT: Wolf Motor Function Test rate.