Table 2.
Baseline characteristics in populations with and without a deficit in the particular cognitive subdomain.
| Variables | Attention | Verbal Fluency | ||||
|---|---|---|---|---|---|---|
| Without Deficit | With Deficit | p-Value | Without Deficit | With Deficit | p-Value | |
| Number of participants (%) | 95 (94.1%) | 6 (5.9%) | 90 (89.1%) | 11 (10.9%) | ||
| Men’s representation (%) | 65 (68.4%) | 5 (83.3%) | 0.442 | 65 (72.2%) | 5 (45.5%) | 0.069 |
| Age (years) | 55.41 ± 11.17 | 49.83 ± 16.38 | 0.252 | 54.82 ± 11.30 | 57.18 ± 13.51 | 0.524 |
| BMI (kg/m2) | 33.57 ± 6.59 | 38.58 ± 6.81 | 0.074 | 33.91 ± 6.59 | 33.48 ± 7.65 | 0.842 |
| Neck circumference (cm) | 42.21 ± 4.18 | 44.83 ± 2.99 | 0.134 | 42.32 ± 3.93 | 42.73 ± 5.93 | 0.762 |
| AHI (n/hour) | 31.8; 37.6 (6.7–153.2) | 64.9; 67.9 (21.0–140.3) | 0.035 * | 34.9; 44.9 (6.7–153.2) | 31.2; 16.3 (15.2–72.9) | 0.819 |
| Arousal index (n/hod.) | 16.8; 24.7 (1.4–89) | 38; 27.2 (16.8–71.8) | 0.039 * | 18.9; 26.4 (1.4–89) | 16; 7.7 (10.8–38.9) | 0.586 |
| Desaturation index (n/hour) | 27.4; 36.6 (1.2–149.6) | 66.1; 60.4 (17.5–120.1) | 0.024 * | 31.3; 41.1 (1.2–149.6) | 25.1; 13.9 (7.5–70.1) | 0.42 |
| REM (%) | 8.4; 10.3 (0–25.7) | 11.65; 15.4 (0–30.4) | 0.551 | 8.55; 9.8 (0–30.4) | 2.9; 11.9 (0–15.8) | 0.138 |
| N1 (%) | 34; 23.1 (1.9–74.6) | 37.35; 36.2 (8.2–66.4) | 0.537 | 31.35; 20.7 (1.9–74.6) | 45.4; 19 (23–72.3) | 0.014 * |
| N2 (%) | 28; 19.5 (6.3–82.7) | 24.5; 11.1 (18.8–36.4) | 0.413 | 28.15; 19.8 (6.3–82.7) | 25.9; 8.1 (8.3–37.9) | 0.206 |
| N3 (%) | 23.5; 23.2 (0–58.1) | 22.9; 9.6 (14.8–36.2) | 0.886 | 24; 23.5 (0–58.1) | 21.8; 16.5 (11–39.2) | 0.731 |
| OAI (n/hour) | 5.33; 13.76 (0–119.18) | 31.6; 66.18 (0.77–132.28) | 0.025 * | 5.97; 19.22 (0–132.28) | 4.66; 7.31 (0–20.45) | 0.38 |
| CAI (n/hour) | 4.79; 12.12 (0–92.75) | 23.25; 31.53 (4.26–37.57) | 0.036 * | 5.75; 13.54 (0–92.75) | 3.35; 7.26 (0.72–37.57) | 0.922 |
| Hypopnea index (n/hour) | 14.2; 40.6 (0–169.4) | 19.45; 47.7 (1.2–133.5) | 0.886 | 14.75; 39.25 (0–163.8) | 16.3; 63.1 (0–169.4) | 0.407 |
| Snoring (%) | 3.60; 10.70 (0–42.40) | 4.65; 17.05 (0.3–34.9) | 0.556 | 3.75; 10.58 (0–40.9) | 4.0; 15.0 (0–42.4) | 0.883 |
| ESS | 7; 8 (0–20) | 13; 10 (7–24) | 0.012 * | 7; 8 (0–24) | 6; 8 (1–16) | 0.922 |
| PSQI | 5; 4 (0–14) | 6; 9 (2–17) | 0.319 | 5; 4 (0–17) | 8; 5 (4–14) | 0.079 |
* p < 0.05. BMI—body mass index; ESS—Epworth Sleepiness Scale; PSQI—Pittsburgh Sleep Quality Index; AHI—apnea/hypopnea index; REM—percentage of REM phase during the whole sleep; N1—percentage of N1 NREM phase during the whole sleep; N2—percentage of N2 NREM phase during the whole sleep; N3—percentage of N3 NREM phase during the whole sleep; OAI—obstructive apnea index; CAI—central apnea index; snoring—percentual duration of snoring during sleep.