Table 1.

Spearman correlations within and between severity of non-verbal and language impairment, component scores, and patient characteristics

	Severity		Non-verbal PCA			Patient characteristics
	Non-verbal	Verbal	S-U	I-G	Speed	Lesion	Age	Education	Time post-stroke
Severity
Verbal	0.535*	–	−0.521*	−0.105	0.150	–	–	–	–
Non-verbal	–	–	−0.676 *	−0.283	−0.110	–	–	–	–
Verbal PCA	–	–
Phonology	−0.216	−0.719 *	0.261	−0.294	0.025	−0.208	−0.126	−0.209	0.131
Semantics	−0.316	−0.383*	0.421*	0.373*	0.087	−0.396*	−0.433*	0.288	−0.115
Speech Quanta	−0.362*	−0.427*	0.443*	0.097	−0.283	−0.504*	0.068	0.190	−0.240
Combined PCA
Phonology	−0.164	−0.744 *	0.216	−0.245	−0.062	−0.238	−0.121	−0.213	0.126
S-U	−0.530*	−0.259	0.871*	−0.063	−0.018	−0.308	−0.445*	0.143	−0.393*
I-G	−0.235	−0.173	−0.109	0.905*	−0.184	0.050	−0.436*	0.312	−0.208
Speech Quanta	−0.325	−0.349	0.214	0.178	−0.195	−0.376*	0.053	0.120	−0.142
Semantics	−0.139	−0.118	0.194	0.201	−0.010	−0.370*	−0.014	0.247	0.061
Speed	−0.172	0.103	−0.122	0.037	0.902*	0.177	−0.305	−0.003	0.294
Patient characteristics
Time post-stroke	0.196	0.151	−0.381*	−0.187	0.240	0.389*	0.094	−0.123	–
Education	−0.279	−0.061	0.254	0.494*	−0.174	−0.132	−0.321	–	–
Age	0.323	0.332	−0.441*	−0.455*	−0.254	0.251	–	–	–
Lesion	0.353*	0.555*	−0.518*	−0.146	0.156	–	–	–	–

S-U = shift-update; I-G = inhibit-generate.

*P < 0.05 two-tailed; bold = significant after Bonferroni correction (P < 0.0004); n = 32.