Supplementary Material for: ABCA1 rs1883025 Polymorphism Shows No Association with Neovascular Age-Related Macular Degeneration or Polypoidal Choroidal Vasculopathy in a Northern Chinese Population

Purpose: To analyze the association between ABCA1 rs1883025 variants with neovascular age-related macular degeneration (nAMD) and polypoidal choroidal vasculopathy (PCV) in a northern Chinese population. Methods: The study enrolled 900 subjects, including 300 controls, 300 cases with nAMD and 300 cases with PCV. Genomic DNA was extracted from venous blood leukocytes. Single-nucleotide polymorphisms in the ABCA1 (rs1883025) gene were genotyped by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Results: The ABCA1 rs1883025 polymorphism was not significantly associated with nAMD (22.5%; p > 0.05) or PCV (20.8%; p > 0.05) in a northern Chinese population. The association remained insignificant after adjustment for age and gender differences (p > 0.05). Conclusions: This study suggests that ABCA1 rs1883025 variants are not associated with nAMD or PCV in a Chinese population, which is likely due to an ethnic difference.