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Table 3 Participant neurocognitive (NC) characteristics based on average T-scores and rates of impairment (N = 97)

From: Neurocognitive, psychiatric, and substance use characteristics in a diverse sample of persons with OUD who are starting methadone or buprenorphine/naloxone in opioid treatment programs

  M (SD) Overall impaired % (n) Mildly impaired % (n) Mild-mod impaired % (n) Moderately impaired % (n) Mod-severely impaired % (n) Severely impaired % (n)
WRAT-3 reading (standard score) 87.2 (13.2)
Global NC functioning 41.6 (6.4) 35% (34) 18% (17) 13% (13) 3% (3) 1% (1) 0% (0)
Executive functioning 43.6 (7.7) 35% (34) 24% (23) 9% (9) 2% (2) 0% (0) 0% (0)
Learning 34.3 (8.3) 79% (77) 34% (33) 19% (18) 12% (12) 7% (7) 7% (7)
Memory 35.5 (8.7) 69% (67) 22% (21) 21% (20) 14% (14) 7% (7) 5% (5)
Attention/working memory 43.0 (9.5) 41% (40) 24% (23) 11% (11) 3% (3) 3% (3) 0% (0)
Speed of information processing 48.0 (8.8) 18% (17) 9% (9) 6% (6) 1% (1) 0% (0) 1% (1)
Motor skills 42.0 (10.3) 42% (40) 17% (16) 14% (13) 5% (5) 5% (5) 1% (1)
Verbal fluency 44.5 (9.9) 31% (30) 18% (17) 6% (6) 4% (4) 2% (2) 1% (1)
  1. T-scores between 45 and 54 = average; T-scores between 40 and 44 = below average; T-scores < 40 = overall impaired; T = 35–39 mildly impaired; T = 30–34 mild-moderately impaired; T = 25–29 moderately impaired; T = 20–24 moderate-severely impaired; and T < 20 severely impaired; Mod = moderately