Table 2.
Comparison of respiratory groups' neuropsychological performance by cognitive domain.
| Measure | Intact respiration | Impaired respiration | P value |
|---|---|---|---|
| Basic orientation | |||
| MMSE (1–10) | 9.50 (0.86) | 9.81 (0.50) | 0.15 |
| Working memory and processing speed | |||
| VSAT time | 91.2 (44.3) | 123 (68.2) | 0.10 |
| VSAT errors | 2.83 (3.11) | 3.20 (5.03) | 0.79 |
| WAIS-III Digit Span | 15.9 (3.53) | 16.7 (4.17) | 0.55 |
| Trail Making Test, part A | 41.1 (22.5) | 43.8 (26.3) | 0.72 |
| Verbal memory | |||
| RAVLT total recall | 49.2 (11.1) | 46.8 (8.89) | 0.45 |
| RAVLT immediate recall | 10.6 (3.58) | 8.85 (3.31) | 0.13 |
| RAVLT delay recall | 10.6 (3.02) | 9.30 (3.54) | 0.22 |
| Visual memory | |||
| BVMT-R total recall | 19.5 (7.93) | 18.6 (7.56) | 0.72 |
| BVMT-R delay recall | 7.50 (3.62) | 7.41 (3.07) | 0.93 |
| Language | |||
| Semantic fluency (Animals) | 18.4 (6.73) | 16.4 (4.60) | 0.31 |
| Confrontational naming | 54.0 (6.82) | 55.1 (3.55) | 0.61 |
| Visuoconstruction/spatial | |||
| Rey-O | 30.5 (7.02) | 33.0 (8.35) | 0.85 |
| WAIS-III Block Design | 33.8 (13.5) | 33.2 (8.94) | 0.89 |
| Executive functioning | |||
| WAIS-III Similarities | 22.5 (6.61) | 22.3 (6.39) | 0.91 |
| Trail Making Test, part B | 118 (92.6) | 124 (78.6) | 0.81 |
| Lexical fluency (FAS) | 33.7 (14.8) | 30.2 (10.3) | 0.43 |
| WCST Categories | 3.00 (1.83) | 3.14 (1.24) | 0.78 |
| WCST Perseverative Errors | 13.6 (16.3) | 11.6 (8.93) | 0.64 |
Note: mean (SD) is given for each variable. Abbreviations are as follows: MMSE: Mini Mental State Examination; VSAT: Verbal Sustained Attention Test; WAIS-III: Wechsler Adult Intelligence Scale-Third Edition; RAVLT:~Rey~Auditory Verbal Learning Test; BVMT-R: Brief Visual Memory Test-Revised; Rey-O: Rey-Osterrieth Complex Figure Test; WCST: Wisconsin Card Sorting Test.