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Table 5 Sensitivity analysis and floor-ceiling effects of VascuQoL with respect to disease severity, (Mann Whitney U)

From: Psychometric properties of the disease-specific health-related quality of life instrument VascuQoL in a Swedish setting

Scale Intermittent claudication (IC), mean ± SD n = 127 Critical limb ischemia (CLI), mean ± SD n = 71 p-value Floor* (IC), % Ceiling (IC), % Floor* (CLI), % Ceiling (CLI), %
Activity 3.50 ± 1.12 2.44 ± 0.88 p < 0.001 0 0 4.2 0
Pain 3.69 ± 1.18 2.61 ± 1,10 p < 0.001 0.8 0 8.5 0
Emotional 4.57 ± 1,29 3.35 ± 1,48 p < 0.001 0 0.8 2.8 1.4
Social 4.34 ± 1.60 3.17 ± 1,63 p < 0.001 0 7.1 5.6 5.6
Symptom 4.46 ± 1.09 2.97 ± 1,23 p < 0.001 0 0 5.6 0
Total 4.05 ± 1.03 2.87 ± 1.00 p < 0.001 0 0 1.4 0
  1. Higher scores indicates better health status.
  2. *Proportion of subjects scoring at the lowest possible scale level.
  3. Proportion of subjects scoring at the highest possible scale level.