Table 5:

Predictive value of the aphasia improvement score

Degree of Language Improvement	Aphasia Improvement Scorea	No. of Patients	Probability of Improvementb	No. of Patients with This Score Showing Improvement
Excellent	1 or 2	13	65%–99% (1 FP)	12 (93%)
Fair	3 or 4	20	18%–96% (2 FP, 2 FN)	9 (45%)
Poor	5 or 6	12	3%–32% (1 FN)	1 (12%)
Dismal	7 or 8	13	1%–6%	0 (0%)

^aThe aphasia improvement score is calculated as described in Table 4.

^bThe probability of improvement is estimated on the basis of the logistic regression equation of Table 3; FP and FN cases are defined on the basis of the results of a multivariate model.