Table 6.
Correlations Between SPEED-8 Questionnaire Scores and Clinical Factors
|
Test |
SPEED-8 |
Self-Reported DE |
Self-Reported MGD |
TMH |
PRT Test |
Diagnosed DE |
| SPEED-8 | ||||||
| Correlation coefficient | 1.000 | –0.458 | –0.288 | 0.007 | 0.004 | 0.202 |
| P value | N/A | <0.001 | <0.001 | 0.901 | 0.943 | 0.001 |
| Subjects, n | 284 | 282 | 281 | 283 | 283 | 284 |
| Self-reported DE | ||||||
| Correlation coefficient | 1.000 | 0.456 | −0.011 | 0.036 | –0.526 | |
| P value | N/A | <0.001 | 0.851 | 0.553 | <0.001 | |
| Subjects, n | 282 | 280 | 281 | 281 | 282 | |
| Self-reported MGD | ||||||
| Correlation coefficient | 1.000 | 0.001 | 0.072 | –0.355 | ||
| P value | N/A | 0.989 | 0.230 | <0.001 | ||
| Subjects, n | 281 | 280 | 280 | 281 | ||
| TMH | ||||||
| Correlation coefficient | 1.000 | 0.093 | –0.489 | |||
| P value | N/A | 0.120 | <0.001 | |||
| Subjects, n | 283 | 283 | 283 | |||
| PRT Test | ||||||
| Correlation coefficient | 1.000 | −0.060 | ||||
| P value | N/A | 0.317 | ||||
| Subjects, n | 283 | 283 | ||||
| Diagnosed DE | ||||||
| Correlation coefficient | 1.000 | |||||
| P value | N/A | |||||
| Subjects, n | 284 | |||||
Significant (P < 0.05) correlations are shown in bold.