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Figure 2: Kaplan-Meier analysis showing that patients with high body lead burden (BLB) (>80 and <600 μg) had a higher likelihood (58.1%, 36/62) of achieving the primary endpoint than those with low BLB (<80 μg) (33.3%, 9/27; Logrank tests, Chi-square = 5.17,   ) during the 24-month followup period.