CRP and diabetes mellitus: After adjusting for age, sex, and ethnicity, only socioeconomic status (OR = 1.02; 95%CI: 1.01–1.03), CRP (OR = 1.02; 95%CI: 1.01–1.02), and history of diabetes (OR = 1.58; 95%CI:1.40–1.78) were significantly associated with accelerated retinal ageing (P < 0.05).