b'Scientific Session Abstracts SUNDAY APRIL 21, 2024 to PFP (44.44-100.00%) or APFP (50.00-100.00%) at 12 months (p=0.70, p=0.81). The average number of interventions in 12 months to maintain functional patency was 0.40 for 50, 0.50 for 50-60, 0.50 for 60-70, 1.00 for 70-80, and 0.00 for 80; the 70-80 group reached statistical significance (p=0.05).Conclusion: At our institution, we do not see a difference in rates of failure of HD access maturation or delayed maturation between age groups, though the 60-70 and 70-80 groups did have prolonged time to access maturation. Additionally, while the 70-80 group had on average more interventions at 12 months to maintain functional patency, there was no difference in the 12- month PFP or APFP between groups.98SOUTHERN CALIFORNIA VASCULAR SURGICAL SOCIETY'