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Table 3 Descriptive summary of distribution of QLACS summary and domain scores, possible floor and ceiling effects at FU1, test-retest correlation, and ICC between FU1 and FU2,

From: Evaluation of the Quality of Life in Adult Cancer Survivors (QLACS) scale for long-term cancer survivors in a sample of breast cancer survivors

Domain/Subscale N Mean STD Min % Floor Max % Ceiling Test-retest Correlation ICC
Generic          
   Negative Feelings 94 11.5 4.2 4 1.1 27 0 0.78 -
   Positive Feelings 94 20.8 5.1 7 0 28 2.1 0.82 -
   Cognitive Problems 94 10.6 4.3 4 5.3 24 0 0.75 -
   Sexual Problems 91 13.7 6.6 4 6.4 28 2.1 0.89 -
   Physical Pain 93 8.5 5.0 4 20.1 26 0 0.89 -
   Fatigue 94 12.3 5.6 4 4.3 27 0 0.84 -
   Social Avoidance 94 7.9 4.6 4 0 26 0 0.86 -
   Summary** 93 75.5 26.3 49 0 167 0 0.91 0.95
Cancer-Specific          
   Appearance 94 8.2 4.9 4 29.8 24 0 0.83 -
   Financial Problems 93 6.2 3.9 4 60.6 25 0 0.82 -
   Distress – Recurrence 94 11.7 5.7 4 10.6 28 1.1 0.85 -
   Distress – Family 94 10.9 6.7 4 17.0 28 2.1 0.88 -
   Summary 94 37.0 15.7 16 2.13 90 0 0.89 0.98
Benefit of Cancer 94 17.6 6.2 4 2.13 28 4.3 0.82 -
  1. N.B. – Missing percentage are low in general. The domain that contains most missing values is Sexual Problem, in which there are 3 missing values (3.2%). Lower scores equal better quality of life.
  2. **The summary score is computed by added the domain scores except for positive feelings. The positive feelings score is subtracted from 32 and then added to the other domain scores.