Table 2 Automated/manual positive–negative agreement (PNA) for each anti-nuclear antibody indirect immunofluorescence reading system, based on 13 published studies
| System | Studies, n | Patients, n | PNA, mean |
|---|---|---|---|
| Aklides | 3 | 1801 | 0.95 |
| EuroPattern | 2 | 467 | 0.97 |
| Helios | 1 | 1005 | 0.98 |
| Image Navigator | 1 | 3185 | 0.99 |
| Nova View | 2 | 842 | 0.95 |
| Zenit G-Sight | 3 | 830 | 0.92 |
| All systems | 1 | 149 | 0.96 |
| Total | 13 | 8279 | 0.97 |
