Standardized rate课件.ppt

STANDARDIZED RATES AND RATIOS ;MORTALITY RATES;OTHER FEATURES OF THE (CRUDE) MORTALITY RATE;CAUSE-SPECIFIC MORTALITY;CASE FATALITY RATE;Mortality Rates Cont’d;SURVIVAL RATES;SPECIFIC MORTALITY RATES;STANDARDIZED MORTALITY RATES;STANDARDIZATION OF MORTALITY RATES ; All forms of standardization involve first breaking down or decomposing a population’s mortality rate into two components: Component 1: The distribution of people in the population in groups (strata) having certain characteristics in common. For example, when we standardize for age, we often create strata of people of the same 10-year age stratum (e.g. 25-34 years, 35-44 years, etc). We call these stratum-specific proportions. Component 2: The mortality rates in each of the strata. We call these stratum-specific mortality rates. For example, the mortality for 25-34 year olds. ; Standardization involves the use of data from two populations Population 1: The population of interest or the population being standardized. Population 2: The standard population. For many years, the standard population used to directly age-adjust US mortality rates was the population of the US in 1940. In 2001, the standard population was changed to the US population of 2000;PARTIAL DECOMPOSITION OF CRUDE MORTALITY RATE;STATISTICS OF STANDARDIZATION - RATES;STATISTICS OF STANDARDIZATION - PROPORTIONS;PRODUCTS OF STANDARDIZATION;DIRECT STANDARDIZATION;FORMULA FOR DIRECT STANDARDIZATION OF RATES;INDIRECT STANDARDIZATION;FORMULA FOR INDIRECT STANDARDIZATION;COMPARING STANDARDIZED MORTALITY RATES ;MNEMONIC DEVICE;STANDARDIZATION EXERCISE;;A. To directly standardize, use the standard population distribution (the US), and the age-specific mortality rates for the population of interest (Michigan). Then calculate the mortality rate that would apply in Michigan if it had the same age distribution as the US. ?US POP MI RATE .30 x 3/1,000 = 0.90/1,000 + .28 x 6/1,000 = 1.68/1,000 + .22 x 12/1,000 = 2.64/1,000 + .