Table 3. Agreement and correlation between mGCIPL, mGCC and cpRNFL measurements obtained using SS-OCT and SD-OCT.
| Mean difference (SD-OCT—SS-OCT) (μm) | 95% CI of Agreement | P value a | Fixed Bias | Proportional Bias | P value b | R2 | ||
|---|---|---|---|---|---|---|---|---|
| mGCIPL | ||||||||
| AVG | 8.6 | 8.0 | 9.2 | < 0.001 | YES | YES | < 0.001 | 0.95 |
| SUP | 11.6 | 10.8 | 12.4 | < 0.001 | YES | YES | < 0.001 | 0.87 |
| SN | 9.8 | 9.3 | 10.3 | < 0.001 | YES | YES | < 0.001 | 0.94 |
| ST | 5.2 | 4.3 | 6.1 | < 0.001 | YES | YES | < 0.001 | 0.85 |
| INF | 11.1 | 10.1 | 12.0 | < 0.001 | YES | YES | < 0.001 | 0.83 |
| IN | 9.6 | 9.0 | 10.2 | < 0.001 | YES | YES | < 0.001 | 0.94 |
| IT | 4.5 | 3.5 | 5.5 | < 0.001 | YES | YES | < 0.001 | 0.82 |
| mGCC | ||||||||
| AVG | 6.5 | 6.0 | 7.1 | < 0.001 | YES | YES | 0.003 | 0.95 |
| SUP | 9.7 | 9.0 | 10.5 | < 0.001 | YES | YES | < 0.001 | 0.94 |
| SN | 3.3 | 2.6 | 4.1 | < 0.001 | YES | NO | 0.158 | 0.92 |
| ST | 7.1 | 6.5 | 7.7 | < 0.001 | YES | YES | < 0.001 | 0.94 |
| INF | 8.9 | 7.8 | 10.2 | < 0.001 | YES | YES | < 0.001 | 0.88 |
| IN | 4.1 | 3.1 | 5.1 | < 0.001 | YES | NO | 0.604 | 0.88 |
| IT | 6.3 | 5.6 | 7.0 | < 0.001 | YES | YES | < 0.001 | 0.94 |
| cpRNFL | ||||||||
| AVG | -1.0 | -2.8 | 0.8 | 0.265 | NO | YES | < 0.001 | 0.82 |
| SUP | 0.8 | -1.5 | 3.1 | 0.516 | NO | YES | < 0.001 | 0.78 |
| INF | -0.2 | -2.6 | 2.1 | 0.834 | NO | YES | < 0.001 | 0.86 |
| NAS | 3.9 | 0.8 | 7.0 | 0.013 | YES | YES | < 0.001 | 0.17 |
| TEMP | -8.3 | -9.9 | -6.7 | < 0.001 | YES | YES | < 0.001 | 0.76 |
a. P values for mean difference
b. P values for the presence of correlation between the difference in pairwise comparison and their mean, after adjusting for inter-eye correlations.