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The Kaplan-Meier estimated survivorship for the subset (n = 111) of the entire cohort (324) using THA as an end point was 91% (86%–96%) at 1 year, 75% (68%–82%) at 5 years, and 63% (55%–71%) at 10 years. Numbers in parentheses at the bottom are patients who did not have THA and were still being followed.
