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The mean and standard deviations and the mean differences in ACDRs measured by the HRT and Discam in both observers
| HRT ACDR | Discam ACDR | |||
| Mean (SD) | Mean (SD) | Mean differences (HRT – Discam ACDR) | Paired t test | |
| Observer A | 0.50 (0.18) | 0.38 (0.12) | 0.08 (0.12) | <0.001 |
| Observer B | 0.52 (0.19) | 0.40 (0.13) | 0.08 (0.16) | <0.001 |
