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Table 2 10- and 15-year OSRa, RSRb, ASRc, RSRd for Connecticut registry for 1981–1985 and 1991–1995 cohorts with 95% confidence intervals in brackets

From: Survival of patients with metastatic breast cancer: twenty-year data from two SEER registries

Connecticut
Year 1981–1985 1991–1995
  OSRa RSRb ASRc RSRd OSRa RSRb ASRc RSRd
10 6.4 (4.6–8.2) 9.1 (6.7–11.5) 13.0 (12.2–13.8) 16.7 (15.7–17.7) 7.2 (3.7–10.7) 9.7 (6.4–13.0) 15.6 (14.6–16.6) 20.7 (19.5–21.9)
15 3.2 (2.0–4.4) 5.7 (3.5–7.9) 4.4 (4.0–4.8) 6.4 (6.0–6.8) N.A. N.A. 5.8 (5.4–6.2) 8.9 (6.2–9.5)
  1. OSRa = overall survival rate calculate by Kaplan-Meier method
  2. RSRb = relative survival rate calculated using SEER*Stat 5.0
  3. ASRc = absolute survival rate calculated by period analysis
  4. RSRd = relative survival rate calculated by period analysis
  5. N.A. = not available