Definitions: Percentage of live infants recorded as having a birth weight under 2,500 grams (five pounds, eight ounces). Rate is expressed as a percent of total live births. Data were aggregated over five-year periods in order to provide more stable rates.
Data Source: Missouri Department of Health.
Data were aggregated over five-year periods in order to provide more stable rates. The year listed is the middle year of the five-year period. For example, 2006 indicates 2004-2008.
Note: Maps use the natural break classification method, which reflects patterns
in the data by dividing the map into naturally occurring groups. Using statistical tools, this method
determines cut-off points for each group by identifying large gaps in data values.