Table 6.
Factor analysis (principal components analysis) of results with varimax normalized rotation. The two-factor model explains 79% of variance
| Factor 1 | Factor 2 | Factor 3 | |
| N13 latency | 0.40 | 0.86 | 0.18 |
| N13 amplitude | -0.12 | -0.89 | -0.34 |
| N19 latency | 0.67 | 0.68 | 0.25 |
| N19 amplitude | -0.32 | -0.36 | -0.75 |
| N13-19 latency | 0.83 | 0.34 | 0.25 |
| P27 latency | 0.90 | 0.25 | 0.28 |
| P27 amplitude | -0.42 | -0.23 | -0.68 |
| N11-P27 latency | 0.87 | 0.30 | 0.24 |
| Severity of dementia | 0.66 | 0.18 | 0.61 |
| Cortical lesions in MRI | 0.17 | 0.17 | 0.87 |
| Subcortical lesions in MRI | 0.83 | 0.12 | 0.33 |
| Explained Variable | 4.29 | 2.51 | 2.67 |
| Proportion of total variance | 39% | 23% | 24% |
| Total variance explained | 86% |