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Table 5 Wisconsin Card Sorting Test and Stroop Test scores based on disease severity

From: Factors affecting executive functions in obstructive sleep apnea syndrome and volumetric changes in the prefrontal cortex

  Group p
Mild (n = 6) Moderate (n = 8) Severe (n = 14)
WCST-2
 Mean ± SD 51.0 ± 25.91 58.38–31.04 60.14 ± 20.42 0.690
 Min–max (median) 18–79 (54.5) 7–88 (67.5) 19–92 (61)
WCST-4
 Mean ± SD 3.83 ± 1.83 3.25 ± 2.25 3.21 ± 1.57 0.773
 Min–max (median) 2–6 (3.5) 0–6 (3) 1–6 (3)
WCST-6
 Mean ± SD 28.17 ± 20.58 26.25 ± 18.15 27.29 ± 20.26 0.945
 Min–max (median) 5–60 (27.5) 0–62 (22) 4–82 (21.5)
WCST-10
 Mean ± SD 51.0 ± 18.69 33.88 ± 17.99 45.5 ± 17.61 0.215
 Min–max (median) 26–73 (58.5) 15–60 (28) 13–74 (47)
Stroop test difference between 1–5
 Mean ± SD 19.67 ± 9.79 23.25 ± 9.99 20.64 ± 8.05 0.716
 Min–max (median) 4–31 (21.5) 8–39 (22.5) 13–35 (17)
Stroop test-5
 Mean ± SD 29.33 ± 10.67 36.63 ± 8.26 31.00 ± 10.68 0.272
 Min–max (median) 15–42 (30.5) 25–48 (36.5) 20–55 (27.5)
Stroop test-5 error
 Mean ± SD 0.50 ± 0.55 0.38 ± 0.74 1.21 ± 1.48 0.492
 Min–max (median) 0–1 (0.5) 0–2 (0) 0–4 (1)
Stroop test-5 correction
 Mean ± SD 1.33 ± 1.03 2.13 ± 1.46 1.93 ± 1.64 0.298
 Min–max (median) 0–3 (1) 1–5 (1.5) 0–5 (2)
  1. Kruskal–Wallis Test
  2. WCST Wisconsin Card Sorting Test