Intra (within) centre agreement analysis (direct clinical measurements with patients in attendance)
| Groups compared | No | Mean difference | 95% CI for mean difference | SD | 95% TL | TL as % of range | Crude ICC | Adjusted ICC |
|---|---|---|---|---|---|---|---|---|
| IOP: | ||||||||
| RCRS1v RCRS2 R | 388 | 0.1 | 0.01, 0.19 | 0.88 | 1.7 | 5 | 0.98 | 0.98 |
| RCRS1v RCRS2 L | 388 | 0.1 | 0.00, 0.20 | 0.98 | 1.9 | 6 | 0.98 | 0.98 |
| RCRS1v RCRS3 R | 388 | 0.4 | 0.31, 0.49 | 0.91 | 1.8 | 5 | 0.97 | 0.98 |
| RCRS1v RCRS3 L | 388 | 0.3 | 0.20, 0.40 | 1.04 | 2.0 | 6 | 0.97 | 0.97 |
| RCRS2v RCRS3 R | 388 | 0.3 | 0.22, 0.38 | 0.83 | 1.6 | 4 | 0.98 | 0.98 |
| RCRS2v RCRS3 L | 388 | 0.1 | 0.01, 0.19 | 0.87 | 1.7 | 5 | 0.98 | 0.98 |
| VF: | ||||||||
| RCRS1v RCRS2 R | 400 | 0.1 | −0.65, 0.85 | 7.14 | 14 | 17 | 0.83 | 0.83 |
| RCRS1v RCRS2 L | 400 | 0.3 | −0.58, 1.18 | 8.58 | 17 | 27 | 0.78 | 0.78 |
| CO1v CO2 R | 166 | 0.2 | −1.03, 1.43 | 8.25 | 16 | 22 | 0.80 | 0.80 |
| CO1v CO2 L | 166 | 0.8 | −0.13, 1.73 | 6.15 | 12 | 13 | 0.89 | 0.89 |
↵Unmasked measurements performed in rapid sequence; RCRS1 = research clinic reference standard first observation; RCRS2 = research clinic reference standard second observation; RCRS3 = research clinic reference standard third observation; CO1 = community optometric first assessment; CO2 = community optometric second assessment; R = right eye; L = left eye; SD = standard deviation of paired differences; CI = confidence interval (for the mean); TL = tolerance limit for change; ICC = intraclass correlation coefficient.