A researcher compares crude mortality rates between a retirement community (mean age 72, BP 138/82, HR 68) and a nearby university town (mean age 24, BP 118/76, HR 62). The retirement community demonstrates a crude annual mortality rate of 45 per 1,000 residents versus 2 per 1,000 in the university town. Age-adjusted life expectancy data are available. No significant differences in healthcare access exist between populations. Which statistical method most appropriately determines whether this mortality difference persists after accounting for population age structure?
- A)Age-standardized mortality comparisonGABARITO
- B)Calculating the positive predictive value of death
- C)Matching each death certificate by sex only
- D)Increasing the sample size in the university town
- E)Using a case series instead of population data
Explicação
Age-standardization, also called age adjustment, allows fair comparison of mortality rates between populations with different age distributions. The retirement community is older on average, so crude mortality is expected to be higher even if age-specific risk... Ver explicação completa e trilha adaptativa →