| Mean difference (SE) | 95% CI mean difference | SD differences | TRV (95% confidence limits for agreement) | Min/max difference | |
| ETDRS-ETDRS | 0.00 (0.01) | −0.02, 0.02 | 0.07 | ±0.14 | −0.10, 0.16 |
| COMPlog-COMPlog | 0.02 (0.01) | 0, 0.04 | 0.05 | ±0.10 | −0.12, 0.12 |
| E ETDRS-E ETDRS | 0.02 (0.01) | −0.01, 0.05 | 0.08 | ±0.16 | −0.22, 0.18 |
| ETDRS-COMPlog | −0.02 (0.01) | −0.05, 0.01 | – | – | – |
| ETDRS-E ETDRS | −0.03 (0.02) | −0.06, 0.00 | – | – | – |
These subjects are a consecutive subset of those reported in table 2.