Table 5.
Correlation Coefficients for Neuropsychological tests and Sleep Indices (n = 32-36)
| Trail B | Fluency | Digits | WCST | PVT-L | L-N | Peg-D | Peg-ND | |
|---|---|---|---|---|---|---|---|---|
|
| ||||||||
| Sleep Questionnaires: | ||||||||
| PSQI | -0.11 | 0.12 | 0.17 | 0.02 | 0.28 | 0.22 | -0.30 | -0.09 |
| ISI | 0.15 | 0.03 | -0.01 | -0.02 | -0.06 | 0.05 | -0.05 | 0.11 |
| ESS | -0.09 | 0.07 | 0.11 | -0.19 | -0.27 | 0.11 | -0.14 | -0.12 |
|
| ||||||||
| Actigraphy: | ||||||||
| Total Sleep Time | -0.21 | -0.05 | 0.16 | -0.21 | 0.11 | 0.07 | 0.04 | -0.22 |
| Sleep Latency | 0.11 | 0.12 | -0.09 | -0.03 | -0.10 | 0.01 | -0.13a,b | 0.10 |
| Sleep Efficiency | -0.28 | -0.09 | 0.30 | -0.22 | -0.04 | 0.15 | -0.06 | -0.10 |
| Wake After Sleep Onset | 0.06 | 0.16 | -0.24 | 0.18 | 0.28 | -0.02 | 0.13 | -0.15 |
|
| ||||||||
| PSG: | ||||||||
| Total Sleep Time | -0.29 | 0.12 | 0.28 | -0.19 | 0.21 | 0.37* | -0.15 | -0.04 |
| Sleep Latency | -0.13 | 0.03 | 0.36*a,b | -0.19 | -0.22 | 0.31 | 0.04 | -0.13 |
| Sleep Efficiency | -0.37*a,b | 0.11 | 0.28 | -0.19 | 0.23 | 0.36*a,b | -0.33 | 0.10 |
| Wake After Sleep Onset | -0.39*a,b | -0.08 | -0.36* | 0.19 | -0.20 | -0.40*a,b | 0.39* | -0.13 |
Notes:
*
p < .05;
**
p< .01.
Fluency = Verbal Fluency, Total F,A,S; Digits = Digit Symbol55; WCST = Wisconsin Card Sort Test59; PVT-MRT = Psychomotor Vigilance Test (3rd time point), mean reaction time; PVT-L = Psychomotor Vigilance Test (3rd time point), lapses; L-N = Letter-Number; Peg-D = Pegboard Dominant; Peg-ND = Pegboard Non-Dominant61; PSG = Polysomnography; PSQI = Pittsburgh Sleep Quality Index; ISI=Insomnia Severity Index; ESS = Epworth Sleepiness Index, evening before PSG;
a
Remains significant after controlling for CD4 Nadir;
b
Remains significant after controlling for CD4 Nadir and MOS-HIV (MOS Total).