Year of birth

The patient’s year of birth.

Considerations for Use

  • The month and day of birth are not provided for confidentiality reasons.
  • If age at diagnosis and year of diagnosis are known, but year of birth is unknown, the year of birth should be calculated and so coded. Only the year is entered. Per the NAACCR Data Dictionary,external icon registrars are instructed to estimate a date of birth rather than leave the birth date unknown.
  • This variable includes only count data. Rates cannot be calculated using this variable as no population data are associated with it.
data/year-birth-us.json

1 Values are not reported due to the need for complementary cell suppression.
2 Counts of fewer than 16 cases and the corresponding percentages are suppressed.

data/year-birth-uspr.json

1 Values are not reported due to the need for complementary cell suppression.
2 Counts of fewer than 16 cases and the corresponding percentages are suppressed.