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. 2016 Oct 13;7:355. doi: 10.3389/fphar.2016.00355

Table 2.

Cognitive performance at baseline (Visit 1) and after 3 months (Visit 2) of MMJ treatment.

Neurocognitive measure Visit 1 Mean (SD) Visit 2 Mean (SD) 1-tailed t-test t (p)
TRAIL MAKING TEST
Trails A time (sec) 26.91 (6.63) 22.91 (3.89) 2.29 (0.02)
Trails A errors 0.36 (0.51) 0.55 (0.82) 0.69 (0.25)
Trails B time (sec) 64.18 (13.42) 54.00 (11.87) 1.72 (0.06)
Trails B errors 0.18 (0.41) 0.18 (0.41) 0.00 (0.50)
STROOP COLOR WORD TEST
Color naming percent accuracy 97.46 (1.81) 97.81 (1.83) 1.31 (0.11)
Color naming time (sec) 59.55 (15.85) 56.91 (14.19) 2.84 (0.01)
Word reading percent accuracy 99.55 (1.04) 99.27 (1.27) 0.67 (0.26)
Word reading time (sec) 44.09 (12.79) 43.46 (14.90) 0.69 (0.25)
Interference percent accuracy 97.91 (1.81) 97.18 (3.06) 1.35 (0.10)
Interference time (sec) 106.00 (27.15) 96.27 (20.66) 2.77 (0.01)
WISCONSIN CARD SORTING TEST
Total categories completed 3.00 (1.10) 2.81 (1.16) 0.56 (0.29)
Total correct responses 45.00 (8.10) 46.36 (8.24) 0.51 (0.31)
Total concept level responses 39.18 (10.41) 41.91 (11.45) 0.84 (0.21)
Total perseverative errors 8.36 (4.65) 7.82 (5.12) 0.35 (0.37)
LETTER-NUMBER SEQUENCING
Total correct 11.55 (2.54) 12.00 (2.83) 1.17 (0.14)

Values in bold represent statistically significant differences from Baseline to Visit 2 (p ≤ 0.05), and italicized values represent statistical trends (p ≤ 0.10).