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Observed survival for Hoag patients with invasive cancer for 1986-1991 vs. 1992-1999. For 1986-1999, n = 5,487, median age 65.0 years, mean age 62.3 years, 60% deceased. For 1992-1999, n = 10,548, median age 65.8 years, mean age 63.4 years, 47% deceased
