Table 8.
Eigenvalues, the percentage of cumulative explained variance and loadings of the first four principal components of PCA of KHQ subscales and HADS subscales.
| PC1 | PC2 | PC3 | PC4 | |
|---|---|---|---|---|
| Eigenvalue | 8.90 | 2.18 | 0.80 | 0.69 |
| Cumulative variance percentage | 59.34 | 14.54 | 5.35 | 4.60 |
| Loadings | ||||
| GHP | −0.50 | −0.57 | 0.50 | −0.36 |
| II | −0.85 | 0.20 | 0.19 | 0.36 |
| KHQ-Part I | −0.88 | −0.14 | 0.39 | 0.09 |
| RL | −0.89 | 0.20 | 0.10 | 0.14 |
| PL | −0.84 | 0.25 | −0.06 | 0.22 |
| SL | −0.85 | 0.08 | −0.25 | −0.24 |
| PR | −0.71 | 0.22 | −0.35 | −0.13 |
| E | −0.91 | 0.10 | −0.05 | −0.14 |
| SE | −0.78 | −0.01 | 0.00 | −0.22 |
| SM | −0.86 | 0.22 | 0.05 | 0.05 |
| KHQ-Part II | −0.97 | 0.18 | −0.10 | −0.05 |
| KHQ-Part III | −0.84 | 0.12 | −0.02 | −0.10 |
| HADS-A | −0.49 | −0.75 | −0.10 | 0.22 |
| HADS-D | −0.49 | −0.72 | −0.12 | 0.14 |
| HADS-R | −0.32 | −0.67 | −0.36 | 0.02 |
GHP = general health perception, II = incontinence impact, RL = role limitations, PL = physical limitations, SL = social limitations, PR = personal relationships, E = emotions, SE = sleep/energy, SM = severity measures, PCA = principal components analysis.