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. Author manuscript; available in PMC: 2015 Sep 23.
Published in final edited form as: N Am Actuar J. 2015 Jul 9;19(3):174–186. doi: 10.1080/10920277.2015.1018390

TABLE 5.

Mean Life Span Conditional on Survival to Age 50 (LS50) with 95% Confidence Intervals for Relatives of Centenarians (Compared to the 1900 U.S. Birth Cohort)

Men Women
Relatives of centenarians Sample size, N LS50 (95% CI), years Sample size, N LS50 (95% CI), years
Parents 1,590 76.2 (75.7–76.8) 1,557 77.2 (76.7–77.8)
All siblings 5,324 77.6 (77.3–77.9) 4,877 82.4 (82.0–82.7)
Married siblings 3,221 77.7 (77.3–78.1) 3,028 82.2 (81.8–82.6)
Spouses 876 75.4 (74.6–76.1) 283 81.4 (80.1–82.7)
Siblings-in-law 2,349 75.0 (74.6–75.5) 2,407 79.5 (79.0–79.9)
1900 U.S. birth cohort 73.3 79.4