Table 2.

Demographic and clinical data for all groups of patients, selected from the web-based MAPPD. Cell values represent counts of patients when a single value is displayed, or they represent the group mean with the range displayed in parentheses. If the means and ranges were not derived from the total count in the group due to missing data, the n used for calculation is also displayed in parentheses. Aphasia classification was determined by the Westeren Aphasia Battery (Kertesz, 1982) when possible, otherwise by clinical reports.

	Group 1	Group 2	Group 3	Group 4	Group 5
Purpose	Motivate clinical use of PNT	Construction of PNT30	Virtual validation of PNT30	Independent administrations of PNT and PNT30	Construction of percentile norms
Selection criteria	MAPPD participants; with radiological imaging	MAPPD participants; studied in Schwartz et al. (2006)	All MAPPD participants not in Schwartz et al. (2006) cohort	PNT performance ranged over the full scale	All participants in MAPPD
Demographics
Total N	86	94	66	25	213
Male	33	56	32	14	126
Female	53	38	24	11	87
Caucasian	47	57	32	15	121
African American	37	37	23	10	88
Hispanic	1	0	1	0	3
Asian	1	0	0	0	1
Age	58 (26–79)	59 (22–86)	59 (28–79)	60 (45–75)	59 (22–86)
Education	14.2 (10–21)	13.5 (7–21)	13.5 (8–21)	14.8 (12–21)	13.6 (7–22)
Mos. post-stroke	57.9 (1–381)	37.5 (1–195)	21.2 (1–130)	67.5 (7–252)	32.3 (1–381)
Clinical Dx
Anomic	42	29	19	7	87
Broca's	24	31	8	11	50
Conduction	15	18	15	4	39
Wernicke's	4	14	13	2	32
TCM	1	0	0	0	1
TCS	0	2	1	1	3
WAB AQ	76.2 (27.2–97.6)	71.2 (45.2–92.7) (n=38)	73.9 (33.1–97.6) (n=32)	64.1 (27.2–95.2)	74.1 (27.2–97.9) (n=131)
BDAE Severity	N/A	2.7 (0–5) (n=51)	2.9 (1–4) (n=23)	N/A	2.8 (1–5) (n=71)
Lesion volume	108.3 (8.0–376.1)	N/A	N/A	N/A	N/A