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Table 7 Distribution-based CID (SD multiples) and MCT lower limit (SEM) estimates for the 37-item FACT-Cog total score based on changes from post-intervention and six month follow-up

From: Important differences and meaningful changes for the Functional Assessment of Cancer Therapy-Cognitive Function (FACT-Cog)

FACT-Cog score (37 items) SD One-third SD One-half SD 1 SEM, ρ = 0.74 1 SEM, ρ = 0.70
T1: Baseline 26.13 8.7 13.1 13.3 14.3
T2: Post-intervention 30.10 10.0 15.0 15.3 16.5
T3: Six-month follow-up 30.00 10.0 15.0 15.3 16.4
Mean 28.73 9.6 14.4 14.7 15.7
  1. Definitions: SD Standard deviation, SEM Standard error of measurement = σ√(1 − ρT-RT)