Percentage agreement and 95% CIs in the interlaboratory reproducibility study
| Evaluation | Percentage agreement (95% CI) |
| Intraobserver reproducibility | ANA: 92.1 (89.6 to 94.4) |
| APA: 94.2 (92.4 to 95.9) | |
| OPA: 93.3 (91.3 to 95.2) | |
| Interobserver reproducibility | ANA: 90.2 (88.7 to 91.7) |
| APA: 92.9 (91.7 to 94.0) | |
| OPA: 91.8 (90.5 to 93.0) | |
| Intralaboratory reproducibility | ANA: 95.1 (93.3 to 96.7) |
| APA: 96.0 (94.5 to 97.3) | |
| OPA: 95.6 (94.0 to 97.1) | |
| Interlaboratory reproducibility | ANA: 93.2 (91.9 to 94.4) |
| APA: 94.4 (93.4 to 95.5) | |
| OPA: 93.9 (92.7 to 94.9) |
ANA, average negative agreement; APA, average positive agreement; OPA, overall percentage agreement.