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Table 4 LS Mean (SE) Postdose SKAMP and PERMP Effect Sizes*

From: Efficacy and tolerability of lisdexamfetamine dimesylate in children with attention-deficit/hyperactivity disorder: sex and age effects and effect size across the day

Hour SKAMP-D LS Mean (SE) Effect Size SKAMP-A LS Mean (SE) Effect Size SKAMP Quality of Work LS Mean (SE) Effect Size SKAMP Total LS Mean (SE) Effect Size PERMP-A LS Mean (SE) Effect Size PERMP-C LS Mean (SE) Effect Size
1.5 -0.68 (0.14) -0.57 (0.14) -0.23 (0.13) -0.85 (0.15) 0.59 (0.14) 0.74 (0.14)
2.5 -1.41 (0.16) -1.20 (0.16) -1.05 (0.15) -1.89 (0.18) 1.28 (0.16) 1.34 (0.16)
5.0 -1.44 (0.16) -1.19 (0.16) -1.24 (0.16) -1.90 (0.18) 1.40 (0.16) 1.44 (0.16)
7.5 -1.41 (0.16) -1.27 (0.16) -1.17 (0.16) -1.94 (0.19) 1.53 (0.17) 1.56 (0.17)
10.0 -1.12 (0.15) -1.11 (0.15) -0.77 (0.14) -1.64 (0.17) 1.39 (0.16) 1.44 (0.16)
12.0 -0.78 (0.14) -0.89 (0.15) -0.75 (0.14) -1.35 (0.16) 1.15 (0.15) 1.21 (0.16)
13.0 -0.38 (0.14) -0.80 (0.14) -0.44 (0.14) -0.84 (0.14) 1.10 (0.15) 1.11 (0.15)
Mean -1.73 (0.18) -1.54 (0.17) -1.73 (0.18) -2.41 (0.21) 1.78 (0.18) 1.83 (0.18)
  1. LS: least squares; PERMP: Permanent Product Measure of Performance; PERMP-A: PERMP-Attempted; PERMP-C: PERMP-Correct; SE: standard error; SKAMP: Swanson, Kotkin, Agler, M-Flynn, and Pelham; SKAMP-A: SKAMP-Attention; SKAMP-D: SKAMP-Deportment.
  2. *Negative SKAMP effect sizes indicate improvement with LDX. Positive PERMP effect sizes indicate improvement with LDX.
  3. Mean SKAMP and PERMP scores across the day were calculated employing the model-based calculations using all measures for all participants at all time points across the day.