Table 5.
Sensitivity analysis and floor-ceiling effects of VascuQoL with respect to disease severity, (Mann Whitney U)
| 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 |
Higher scores indicates better health status.
*Proportion of subjects scoring at the lowest possible scale level.
Proportion of subjects scoring at the highest possible scale level.