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Table 1 Observed sample sizes, means, and standard deviations for self- and parent-reported internalising and externalising symptoms and for family functioning

From: Multidimensional family therapy decreases the rate of externalising behavioural disorder symptoms in cannabis abusing adolescents: outcomes of the INCANT trial

Outcome measure Intake M (SD) 6 Month M (SD) 9 Month M ( SD) 12 Month M ( SD)
YSR Internalising n = 430 n = 346   n = 382
  MDFT 14.59 (9.75) 10.96 (7.77) N/A 10.82 (8.87)
  IP 14.60 (9.56) 11.99 (8.71) N/A 11.76 (9.23)
YSR Externalising n = 430 n = 346   n = 382
  MDFT 21.57 (9.22) 17.08 (8.61) N/A 15.38 (9.07)
  IP 19.73 (8.32) 17.12 (9.21) N/A 15.86 (8.80)
CBCL Internalising n = 433 n = 341   n = 363
  MDFT 20.14 (10.32) 14.81 (9.75) N/A 13.08 (9.79)
  IP 21.12 (11.18) 16.12 (10.90) N/A 13.96 (9.16)
CBCL Externalising n = 434 n = 341   n = 364
  MDFT 26.25 (12.04) 18.44 (10.68) N/A 16.34 (11.15)
  IP 23.84 (11.51) 18.76 (12.39) N/A 15.35 (9.80)
FES Conflict a n = 429 n = 345 n = 308 n = 357
  MDFT 0.43 (0.21) 0.59 (0.22) 0.65 (0.15) 0.59 (0.20)
  IP 0.45 (0.21) 0.62 (0.20) 0.67 (0.13) 0.63 (0.21)
FES Cohesion n = 429 n = 345 n = 308 n = 357
  MDFT 0.63 (0.30) 0.83 (0.27) 0.80 (0.17) 0.85 (0.25)
  IP 0.60 (0.29) 0.79 (0.27) 0.77 (0.18) 0.81 (0.26)
  1. Note. Total sample was n = 450 adolescents. The table presents the number of cases (n) per outcome variable and assessment point on which the figures shown are based. YSR = Youth Self-Report, MDFT = Multidimensional Family Therapy, IP = Individual psychotherapy, N/A = Not applicable, CBCL = Child Behaviour Checklist (as completed by 1 parent), FES = Family Environment Scale.
  2. aHigher scores reflect less conflict.