Crude death rate is the number of deaths per 1,000 population. The selected causes of death are classified by the ICD-9 codes used to designate the underlying cause of death on the death certificates. Communicable Disease Control Programs. Rates for communicable disease are calculated using the 1996 and 1997 population estimates. The categorization of public health and non-public health clinic services is listed in the following chart.
SPAs contain health districts and census tracts.
In this report, data on population, poverty, housing, education, clinic outpatient visits and communicable diseases were aggregated from the census tract level to health district and SPA levels. However, some of the zip code areas comprised areas that cross over health district and SPAs boundaries. In these cases, the incidents which occurred within these zip codes were assigned proportionally based on the population distributions in health districts or SPAs. The relationships between health districts and SPAs are presented in Table 1. The conversion tables between zip codes and health districts or SPAs are available from the Data Collection and Analysis Unit.