Table 2.

Scores in neurocognitive tests in OSA patients and controls. Means ± standard deviations [range] are reported; P-values refer to 2-tailed Student’s T-test.

Test		Patients (n=16)	Controls (n=14)	P-value
Mini Mental State Examination		29.5 ± 0.8 [28–30]	29.6 ± 0.6 [28–30]	0.60
Rey Auditory-Verbal Learning test	immediate recall	40.9 ± 5.4 [32.2–48.0]	45.9 ± 6.4 [33.0–55.7]	0.026
	delayed recall	7.7 ± 2.3 [3.3–11.2]	9.7 ± 1.4 [7.2–12.5]	0.011
Digit span	forward	5.6 ± 0.6 [5–7]	5.9 ± 0.4 [5–6]	0.23
	backward	3.8 ± 0.9 [2–5]	4.4 ± 0.6 [3–5]	0.049
Visual memory		20.4 ± 1.2 [18.4–22.0]	19.7 ± 1.7 [17.1–22.0]	0.22
Copy drawings	without landmarks	9.9 ± 2.1 [6.5–12.0]	10.1 ± 1.2 [7.5–12.0]	0.72
	with landmarks	66 ± 8 3.4 [59.2–70.0]	66.4 ± 4.1 [58.3–70.0]	0.76
Rey-Osterreith figure	copy	30.4 ± 6.1 [19.5–36.0]	33.9 ± 3.0 [26.7–36.0]	0.06
	recall	14.7 ± 5.7 [5.0–28.8]	17.3 ± 4.0 [9.6–25.0]	0.17
Raven’s Advanced Progressive Matrices		29.7 ± 3.9 [20.3–36.0]	31.7 ± 2.6 [28.3–36]	0.11
Word fluency	semantic	39 ± 7 0.5 [39.0–40.0]	39.9 ± 0.3 [39.0–40.0]	0.11
	phonological	26.7 ± 8.8 [14.2–44.2]	28.5 ± 6.6 [17.9–38.0]	0.56
Stroop test	interference time	40.3 ± 13.1 [25.0–60.0]	33.9 ± 5.0 [24.0–41.0]	0.10
	ratio	1.12 ± 0.31 [0.74–1.76]	0.89 ± 0.20 [0.60–1.19]	0.021