wonder_age_bands
Age-band dictionary for age-adjusted mortality. One row per age band with its 2000 US standard-population weight (std_pop_2000), band midpoint, and an under_75 flag used for premature-mortality (YPLL) cuts. Joins to CDC WONDER by-age mortality extracts to compute age-adjusted and premature death rates.
tier aTier A: the NCHS age-adjustment standard.
overview
overview
10 age bands with 2000 std-pop weights + under_75 YPLL flag.
current vintage — 2000 standard population
provenance
source & licensing
authority
U.S. National Center for Health Statistics
dataset
2000 US Standard Population
source url
license
Public domain (U.S. Federal Government work)
citation
U.S. NCHS, 2000 U.S. Standard Population.
schema
fields
| name | type | definition |
|---|---|---|
| age_bandkey | string | Age band label (e.g. '0-4', '25-34', '85+'). Primary key of the dictionary and join key to CDC WONDER by-age mortality extracts.Part of primary key. |
| band_midpoint | float64 · years | Age at the midpoint of the band. Null for the open-ended top bands (75-84, 85+) where no finite midpoint is defined. |
| sort_order | int64 · count | Ordinal position of the band from youngest to oldest, used to order bands in age-adjusted mortality outputs. |
| std_pop_2000 | int64 · count | 2000 US standard-population weight for this age band, used as the fixed weight when computing age-adjusted death rates so rates are comparable across populations with different age structures. |
| under_75 | bool | True for bands entirely below age 75; used to restrict rows to the premature-mortality (years of potential life lost, YPLL) cut. |
relationships
joins
primary key
age_band
common joins
not provided
usage
how to use this table
method
Standard 10-band grouping with Census 2000 standard-population weights.
do not use for
Age adjustment vs a non-2000 standard; single-year-of-age analysis.
last updated · Jul 7, 2026