Table 1.

Characteristics of individuals in SEER-Medicare during follow-up 2002 to 2009

5% SubcohortOCC casesa
Characteristics(N = 470,266)(N = 8,927)
Sex, N (%)
 Female272,739 (58.0)3,872 (43.4)
 Male197,527 (42.0)5,055 (56.6)
Race, N (%)
 White, non-Hispanic386,929 (82.3)7,869 (88.2)
 Black, non-Hispanic39,822 (8.5)550 (6.2)
 Other43,515 (9.3)508 (5.7)
Age at cohort entry in years, median (IQR)70 (65–78)72 (66–78)

NOTE: SEER registries cover individuals living in Alaska; California; Connecticut; Detroit, Michigan; Georgia; Hawaii; Iowa; Kentucky; Louisiana; New Jersey; New Mexico; Seattle, Washington; Utah; and American Indians living in Arizona or the Cherokee Tribal Service Area of Oklahoma.

Abbreviation: IQR, interquartile range.

  • a473 OCC cases were diagnosed in the 5% subcohort and 8,454 OCC cases were diagnosed outside of the subcohort.