Table 4.
Comparisons of motor and SIP demographically-corrected T scores between controls and HIV+ patients.
| Test | HIV− (N = 395) | HIV+ (N = 343) | Cohen’s d (95% CI) | P Value | P Value | ||
|---|---|---|---|---|---|---|---|
| N | Mean (SD) | N | Mean (SD) | (adj.) | |||
| Motor domain | |||||||
| Grooved pegboard–dominant hand | 362 | 50.0 (10.0) | 318 | 48.1 (10.6) | − 0.18 (− 0.33, − 0.03) | 0.018 | 0.036 |
| Grooved pegboard– non-dominant hand | 362 | 50.0 (9.99) | 318 | 49.0 (10.4) | − 0.10 (− 0.25, 0.05) | 0.188 | 0.251 |
| Motor summary score | 362 | 50.0 (9.10) | 318 | 48.6 (9.74) | − 0.15 (− 0.30, 0.001) | 0.050 | 0.050 |
| SIP domain | |||||||
| WAIS-III digit symbol total | 361 | 50.0 (9.98) | 321 | 47.6 (9.62) | − 0.25 (− 0.40, − 0.10) | 0.001 | 0.008 |
| WAIS-III symbol search total | 355 | 50.0 (9.98) | 319 | 49.7 (11.0) | − 0.03 (− 0.18, 0.13) | 0.745 | 0.745 |
| Stroop color total | 362 | 50.0 (10.0) | 314 | 49.0 (11.1) | − 0.09 (− 0.24, 0.06) | 0.233 | 0.266 |
| Stroop words total | 361 | 50.0 (9.99) | 311 | 48.1 (10.3) | − 0.19 (− 0.34, − 0.04) | 0.014 | 0.036 |
| Trail making A time | 363 | 50.0 (10.0) | 321 | 48.1 (10.6) | − 0.18 (− 0.33, − 0.03) | 0.017 | 0.036 |
| Color trails 1 time | 364 | 50.0 (10.0) | 321 | 48.7 (9.58) | − 0.13 (− 0.28, 0.02) | 0.084 | 0.134 |
| SIP summary score | 350 | 50.1 (6.62) | 309 | 48.6 (6.95) | − 0.21 (− 0.37, − 0.06) | 0.006 | 0.012 |
Cohen’s d compares HIV+ to HIV−; P value (adj.) = p value corrected for multiple testing; The higher the T score, the better NP performance is.
SD standard deviation, CI confidence interval, SIP speed of information processing, WAIS-III Wechsler Adult Intelligence Scale-III.