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Table 1 Participant demographics

From: Retinal vascular and structural changes are associated with amyloid burden in the elderly: ophthalmic biomarkers of preclinical Alzheimer’s disease

  Elderly control group (NAL <1.4) Preclinical AD group (NAL ≥1.4) Clinical AD cohort
Number of participants 50 23 28
Males/females 14/36 9/14 16/12
Mean age, years 79 ± 5 80 ± 4 70 ± 9
Mean IOP, mmHg 14 ± 3 13 ± 3 13 ± 3
Mean SBP, mmHg 153 ± 14 142 ± 18 137 ± 17
Mean DBP, mmHg 83 ± 15 77 ± 18 80 ± 8
Mean Aβ, SUVR 1.17 ± 0.09 1.75 ± 0.24
  1. Abbreviations: Aβ Amyloid-β, AD Alzheimer’s disease, DBP Diastolic blood pressure, IOP Intra-ocular pressure, NAL Neocortical amyloid load, SBP Systolic blood pressure, SUVR Standardised uptake value ratio