Table 1

Scans requiring re-measurements and re-measured values

No of re-measured FMTM scans
VRC
UW-FPRCNoYesTotal
No57663
Yes82937
Total number6535100
κ0.70
SE0.07
95% CI0.55 to 0.84
Manually re-measured centre point thickness
No of re-measured scans at both sites29
Intraclass correlation coefficient0.92
95% CI0.845 to 0.96
Pearson p (precision)0.94
Bias correction factor Cb (accuracy)0.9824
VRCUW-FPRC
Mean (μm)298276
SE21.322.5
SD114.9121.2
Minimum139115
Maximum501544
  • Values in bold indicate consistent grading. FMTM, fast macular thickness map; UW-FPRC, University of Wisconsin-Madison Reading Center; VRC, Vienna Reading Center.