The denominator is the total number of children ages 0-2. The numerator is those who live outside of metro areas. Metropolitan areas include central/principal cities, metro areas outside of central/principal cities, and metro areas with central/principal city status indeterminable. Non-metropolitan areas are areas outside of metropolitan areas. Cases whose metropolitan status is indeterminable or mixed are excluded from the urbanicity subgroup analysis. For the State of Babies Yearbook: 2023 we report estimates using the 2021 ACS 1-year data because the Census Bureau did not release its standard 2020 ACS 1-year estimates due to the effects of the COVID-19 pandemic.
Source:
Ruggles, S., Flood, S., Sobek,M., Brockman, D., Cooper,G., Richards, S. & Schouweiler, M. (2023). American Community Survey 2021, one-year estimates. (IPUMS USA: Version 13.0) [Data set]. https://doi.org/10.18128/D010.V13.0