Center on Society and Health New York City Life Expectancy Methodology and Data Table Methods Population data were calculated using a weighted average number of deaths across the ten years was computed in of 2000 and 2010 data obtained from the New York City order to match the single year of population data (weighted Department of City Planning. Death count data were average of 2000 and 2010) used. Death counts and obtained from the Bureau of Vital Statistics at the New population data were then entered into abridged life York City Department of Health and Mental Hygiene. tables using the Chiang methodology.' The death and The most recently available years of death data (2003 to population counts for age groups with zero deaths were 2012) were aggregated into 19 age groups (see below) by replaced with the corresponding death and population decedent's residential community district. The average counts for the state of New York. Age Groups The following table contains the life expectancy values for all the New York City area community districts that were part of this project. The final life expectancy map was based on the values in this table: