A researcher compares crude mortality rates between a retirement community (mean age 78 years) and a nearby university town (mean age 22 years). The retirement community demonstrates a crude annual mortality rate of 45 per 1,000 versus 8 per 1,000 in the university town. Recent census data show no significant differences in healthcare access between communities. Which statistical method most appropriately determines whether this mortality difference persists after adjusting for the substantial variation in population age structure between the two groups?
- A)Calculating the positive predictive value of death
- B)Matching each death certificate by sex only
- C)Increasing the sample size in the university town
- D)Using a case series instead of population data
- E)Age-standardized mortality comparisonGABARITO
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 →