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Table 2 Mean retinal, inner retinal and outer retinal thickness values for CKD stages 1–2, 3, and 4–5

From: Association of reduced inner retinal thicknesses with chronic kidney disease

ETDRS segmentRight eyeLeft eye
CKD stages 1–2CKD stage 3CKD stage 4–5ANOVACKD stages 1–2CKD stage 3CKD stage 4–5ANOVA
Mean thickness μm (SD)Mean thickness
μm (SD)
Mean thickness μm (SD)pMean thickness μm (SD)Mean thickness
μm (SD)
Mean thickness μm (SD)p
Full retinal thickness
 N1342 (17) A339 (21) A324 (27) B< 0.001*343 (22) A341 (26) A327 (28) B0.004*
 S1337 (18) A336 (20) A320 (26) B< 0.001*340 (20) A336 (22) A321 (28) B< 0.001*
 T1326 (17)324 (16)317 (48)0.14328 (19) A325 (19) A313 (38) B0.005*
 I1336 (17) A332 (19) A319 (28) B< 0.001*337 (21) A333 (19) A318 (27) B< 0.001*
Inner Retinal Layer
 N1261 (17) A258 (19) A244 (26) B< 0.001*262 (21) A257 (19) B248 (30) B0.01*
 S1257 (17) A256 (19) A241 (25) B< 0.001*260 (20) A255 (19) A243 (30) B0.001*
 T1246 (16)244 (15)238 (48)0.19248 (18) A245 (18) A235 (38) B0.01*
 I1257 (17) A253 (18) A240 (28) B< 0.001*258 (20) A254 (16) A241 (27) B< 0.001*
Outer Retinal Layer
 N181 (3)81 (4)80 (3)0.4781 (3)83 (11)80 (3)0.06
 S180 (3)80 (4)79 (3)0.4580 (3)81 (7)79 (3)0.08
 T180 (3)80 (4)79 (3)0.2980 (3)80 (3)79 (3)0.35
 I179 (3)79 (4)79 (4)0.9179 (3)80 (6)78 (4)0.15
  1. ETDRS Early Treatment Diabetic Retinopathy Study, OR Odds ratio, SD Standard deviation, CI Confidence interval, F Fovea, S1 Superior segment 1, N1 Nasal segment 1, I1 Inferior segment 1, T1 Temporal segment 1. A, B and C indicate groups which are significantly different from each other according to SNK test