Table 2

This table shows the summary measures of a number of metrics across the five centres (and a total column). The six main metrics highlighted in the Methods section are given in bold font. Median (and IQR) values or percentages are reported as summary measures.

Centre 1Centre 2Centre 3Centre 4Centre 5TOTAL
Patients with VF loss, n1373240411 5895713468125 760
VFs, n781319 654121 93936 01135 737223 379
Sex (% men)45.645.247.147.744.846.5
Median (IQR) Age (years) at presentation75(67, 80)71(61, 78)71(61, 78)71(62, 79)69(58, 77)71(61, 78)
% of unreliable VFs3.04.45.14.34.14.6
Median (IQR) MD at presentation (dB)−6.5 (−11.7, -3.9)−5.8 (−10.6, −3.6)−5.7 (−10.1, −3.6)−5.4 (−9.9, −3.5)−5.4 (−9.9, −3.5)−5.6 (−10.2, −3.6)
% patients with advanced VF loss at presentation29.625.024.223.022.824.0
Patients* with VF series >4 years, n843178692083917348019 264
Median (IQR) MD loss per year (dB/year)*0.37(1.2, 0.32)0.26(0.90, 0.20)0.23(0.83, 0.21)0.19(0.81, 0.27)0.10(0.71, 0.37)0.21(0.83, 0.26)
% Patients LSY >3 years12.512.911.810.110.011.2
Median (IQR) interval between VFs (months)12.6(8.6, 18.1)10.3(7.6, 13.6)9.5(7.2, 13.0)15.4(11.5, 21.1)12.3(9.6, 16.5)11.2(8.1, 15.8)
  • LSY, Loss of Sight Years; MD, mean deviation; VF, visual field.