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Recurrence-free days through day 60 for gram-negative bloodstream infection from a complicated urinary tract infection source, based on treatment regimen and total duration. Data represent cumulative incidence curves generated from the propensity-weighted Cox proportional hazards models. Abbreviations: FQ, fluoroquinolone, HBBL, high-bioavailability β-lactam; IVBL, intravenous β-lactam; TMP-SMX, trimethoprim-sulfamethoxazole (all taken orally).
