Table 3.
Rotated component matrix of factor analysis of items about sleep habits
| Factor I | Factor II | Factor III | |
|---|---|---|---|
| Variable bed time | 0.736 | 0.144 | -0.035 |
| Alcohol consumption | 0.709 | -0.194 | 0.215 |
| Unrest awakening | 0.697 | 0.341 | 0.110 |
| Abnormal sleep | 0.475 | 0.473 | 0.035 |
| Sweating | 0.369 | 0.304 | -0.090 |
| Loud Snoring | -0.018 | 0.711 | 0.012 |
| Daytime sleepiness | 0.157 | 0.673 | 0.186 |
| Nocturia | 0.305 | 0.420 | -0.016 |
| Sleep medication use | 0.086 | -0.136 | 0.832 |
| Witnessed apnea | -0.025 | 0.410 | 0.663 |
Extraction Method: Principal Component Analysis. Rotation Method: Equamax with Kaiser Normalization. Kaiser-Meyer-Olkin Measure of Sampling Adequacy: 0.754. Bartlett’s Test of Sphericity: 0.001 (chi-square: 422.8).