Mortality is based on a large risk pool of

While income can influence health outcomes and mortality rates, it is not a comprehensive measure on its own. Income does not represent a collective group of individuals, nor does it account for the temporal aspect necessary for assessing mortality risk. Thus, income alone fails to create a relevant risk pool for mortality analysis.

Geographic area can affect mortality rates due to varying environmental factors and healthcare access. However, without the inclusion of people, geographic area alone cannot form a sufficient risk pool. The temporal element is also important, but it does not capture the necessary demographic diversity needed for accurate mortality assessments.

Family history can provide insight into hereditary health risks, while hobbies can influence lifestyle choices affecting health. However, neither factor encompasses a large population base nor a temporal component necessary for comprehensive mortality analysis. These individual characteristics are insufficient to form a broad risk pool.