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Table 4 Variation with age of the mean choroidal thickness

From: Macular choroidal thickness in normal Egyptians measured by swept source optical coherence tomography

Area Choroidal thickness (μm)
<40 years Mean ± SD ≥40 years Mean ± SD P
Central ring 320.32 ± 73.93 276.30 ± 62.48 <0.0001
Inferior inner region 319.53 ± 77.31 270.05 ± 67.92 <0.0001
Superior inner region 327.24 ± 78.16 280.91 ± 62.54 <0.0001
Nasal inner region 296.44 ± 72.74 265.44 ± 66.15 0.01
Temporal inner region 329.15 ± 76.69 272.65 ± 60.04 <0.0001
Inferior outer region 303.81 ± 77.02 248.09 ± 66.94 <0.0001
Superior outer region 320.85 ± 77.72 269.44 ± 57.63 <0.0001
Nasal outer region 250.51 ± 71.98 225.33 ± 74.36 0.05
Temporal outer region 313.68 ± 75.09 256.56 ± 56.59 <0.0001
  1. SD standard deviation