Observations on the level of socioeconomic status, environmental state, health resources distribution and program performance in the least healthy areas (usually low levels) would firmly establish them as priority
Prioritization requires good judgement, an ability to "synthesize the numerous relevant details and to balance variables which often have very different quantitative relationships or lie in different dimensional scales"
Is the disease/condition or problem explicitly expressed as important to the community?
Does the problem affect certain age groups, geographical areas, social strata, occupational groups, etc. which are considered important by the community?