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Table 2 Automated/manual positive–negative agreement (PNA) for each anti-nuclear antibody indirect immunofluorescence reading system, based on 13 published studies

From: Automated tests of ANA immunofluorescence as throughput autoantibody detection technology: strengths and limitations

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