Research Article

Season of Birth and Exceptional Longevity: Comparative Study of American Centenarians, Their Siblings, and Spouses

Table 3

Characteristics of centenarians born in 1880–1895 and their siblings and spouses. Values are numbers (percentages) or means (standard deviations).

CharacteristicMenWomenBoth Sexes

Number of records (percent)
 Centenarians, total365 (23.2)1,209 (76.8)1,574 (100.0)
 Centenarians with spouses231 (23.9)737 (76.1)968 (100.0)
 Siblings of centenarians5,731 (52.7)5,154 (47.3)10,885 (100.0)
 Spouses of centenarians814 (75.2)269 (24.8)1,083 (100.0)

Mean age at death, years (standard deviation)
 Centenarians, total101.5 (1.7)101.8 (1.9)101.7 (1.9)
 Centenarians with spouses101.5 (1.8)101.8 (2.0)101.8 (1.9)
 Siblings of centenarians62.9 (29.3)66.1 (30.7)64.3 (29.9)
 Spouses of centenarians72.69 (14.7)77.8 (17.1)73.9 (15.5)

Mean year of birth (standard deviation)
 Centenarians, total1887.0 (5.5)1888.6 (5.5)1888.2 (5.5)
 Centenarians with spouses1887.4 (5.0)1888.8 (4.7)1888.4 (4.8)
 Siblings of centenarians1888.6 (10.4)1889.0 (10.3)1888.8 (10.4)
 Spouses of centenarians1885.4 (7.5)1892.2 (7.2)1887.1 (8.0)