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Table 4 Wisconsin Card Sorting Test and Stroop Test scores of patient and control groups

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

  Group P
Total (n = 43) Patient (n = 28) Control (n = 15)
WCST-2
 Mean ± SD 52.72 ± 24.15 57.68 ± 24.25 43.47 ± 21.79 0.061
 Min–max (median) 7–92 (55) 7–92 (61) 11–78 (54)
WCST-4
 Mean ± SD 3.72 ± 1.77 3.36 ± 1.78 4.40 ± 1.59 0.052
 Min–max (median) 0–6 (3) 0–6 (3) 1–6 (4)
WCST-6
 Mean ± SD 22.86 ± 17.99 27.18 ± 19.02 14.80 ± 12.89 0.022*
 Min–max (median) 0–82 (20) 0–82 (22) 0–45 (11)
WCST-10
 Mean ± SD 47.28 ± 19.79 43.36 ± 18.44 54.60 ± 20.77 0.061
 Min–max (median) 6–87 (50) 13–74 (42.5) 6–87 (58)  
Stroop test difference between 1–5
 Mean ± SD 19.47 ± 8.78 21.18 ± 8.76 16.27 ± 8.17 0.061
 Min–max (median) 4–40 (18) 4–39 (20) 7–40 (16)
Stroop test-5
 Mean ± SD 30.07 ± 9.80 32.25 ± 10.10 26.00 ± 7.99 0.043*
 Min–max (median) 15–55 (28) 15–55 (30) 16–49 (24)
Stroop test-5 error
 Mean ± SD 0.77 ± 1.32 0.82 ± 1.19 0.67 ± 1.59 0.174
 Min–max (median) 0–5 (0) 0–4 (0) 0–5 (0)
Stroop test-5 correction
 Mean ± SD 1.51 ± 1.53 1.86 ± 1.46 0.87 ± 1.51 0.005**
 Min–max (median) 0–6 (1) 0–5 (1.5) 0–6 (1)
  1. Mann–Whitney U-test
  2. WCST Wisconsin Card Sorting Test
  3. * p < 0.05; ** p < 0.01