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Kaplan–Meier estimates of the cumulative risk of failure according to the treatment group assessed at 24 months follow-up. Patients in the rifampin-fluoroquinolone treatment group had a lower risk of experiencing treatment failure than did patients treated with other antibiotic regimens (P = .003). Dotted line, rifampin-fluoroquinolone treatment group (n = 39); solid line, other regimens group (n = 59).
