Table 2.
Discourse data: Means and standard deviations.
| Parameter | Anomic (n = 87) | Anomic-Top (n = 36) | NABW (n = 27) | Controls (n = 177) |
|---|---|---|---|---|
| Number of utterances | 31.6 (20.5) | 32.8 (21.8) | 27.3 (11.7) | 49.4 (34.7) |
| MLU (words) | 7.0 (2.0) | 7.4 (1.7) | 8.8 (1.7) | 9.9 (2.3) |
| MATTR | 0.80 (0.05) | 0.81 (0.04) | 0.84 (0.03) | 0.87 (0.02) |
| Proposition density | 0.46 (0.06) | 0.46 (0.05) | 0.49 (0.03) | 0.50 (0.03) |
| % Word errors | 4.9 (4.5) | 4.9 (4.4) | 1.5 (1.3) | 0.06 (0.13) |
| Words per minute | 56.0 (27.5) | 54.5 (26.6) | 86.9 (24.6) | 134.3 (30.9) |
| Main concepts | 27.1 (15.6) | 33.4 (15.4) | 42.3 (18.4) | 55.9 (18.9) |
Note. NABW = not aphasic by WAB; MLU = mean length of utterance; MATTR = moving average type–token ratio.