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Table 2 Comparison of the scores of healthy controls and schizophrenic patients above and below 40 years of age, with t test as the post hoc test

From: A standardized scoring method for the copy of cube test, developed to be suitable for use in psychiatric populations

  Controls Patients with Schizophrenia  
  Mean SD Mean SD P value
Below 41 years N = 60 N = 101  
RLT-A 100.00 0.00 71.43 45.72 <0.001
RLT-B 84.14 21.31 65.00 40.05 <0.001
SCCT-1 100.00 0.00 79.16 40.67 <0.001
SCCT-2 63.10 35.20 41.70 35.12 <0.001
SCCT-3 57.06 30.57 41.14 29.21 0.001
SCCT-4 100.00 0.00 71.83 44.76 <0.001
SCCT-5 66.42 36.94 31.45 30.23 <0.001
SCCT-6 60.52 34.46 45.74 38.96 <0.05
SCCT-7 100.00 0.00 76.39 42.44 <0.001
SCCT-8 56.95 31.41 40.10 30.86 <0.001
SCCT-9 77.11 15.34 79.89 16.18 NS
SCCT-10 68.63 19.27 65.43 19.66 NS
SCCT-11 100.00 0.00 79.30 40.40 <0.001
SCCT-12 85.81 30.81 84.76 31.56 NS
SCCT-13 95.35 20.77 85.37 34.67 <0.05
SCCT-14 100.00 0.00 100.00 0.00 NS
SCCT 1,128.77 145.22 922.26 212.89 <0.001
Deficit Index (DcI) 496.63 17.82 395.61 150.78 <0.001
Missing Elements (ME) 400.00 0.00 310.82 153.23 <0.001
Mirror Image (M) 96.63 17.82 84.79 35.23 <0.05
Deformation Index (DfI) 182.60 34.11 169.74 47.19 NS
Deformation (D) 450.14 138.94 343.06 137.32 <0.001
Rotation (R) 85.96 30.70 84.95 31.42 NS
Closing-In Index (CiI) 100.00 0.00 100.00 0.00 NS
Above 40 years N = 33 N = 26  
RLT-A 96.77 17.96 84.62 37.55 NS
RLT-B 87.13 15.98 62.46 43.00 <0.01
SCCT-1 93.65 24.60 77.23 42.40 NS
SCCT-2 61.68 29.48 39.65 38.03 <0.05
SCCT-3 53.39 30.58 27.69 26.87 <0.01
SCCT-4 93.68 24.47 58.38 49.56 <0.001
SCCT-5 58.00 38.12 33.12 26.16 <0.01
SCCT-6 54.65 35.07 32.15 30.93 <0.05
SCCT-7 93.65 24.60 73.46 44.59 <0.05
SCCT-8 58.61 32.58 31.77 31.08 <0.01
SCCT-9 78.71 16.05 77.15 15.53 NS
SCCT-10 63.23 18.42 56.73 15.10 NS
SCCT-11 90.61 29.15 73.42 44.66 NS
SCCT-12 79.35 35.58 72.31 38.81 NS
SCCT-13 96.90 17.24 96.31 18.83 NS
SCCT-14 100.00 0.00 100.00 0.00 NS
SCCT 1,076.10 190.59 849.38 188.07 <0.001
Deficit Index (DcI) 470.19 93.07 368.60 164.78 <0.01
Missing Elements (ME) 375.53 91.84 271.80 164.47 <0.01
Mirror Image (M) 94.67 22.30 96.80 17.53 NS
Deformation Index (DfI) 174.67 38.89 170.13 46.17 NS
Deformation (D) 427.53 143.18 312.57 126.38 0.001
Rotation (R) 80.00 35.13 73.33 38.36 NS
Closing-In Index (CiI) 100.00 0.00 100.00 0.00 NS
  1. NS = not significant; RLT = random letter test; SCCT = Standardized Copy of the Cube Test.