Overall, the strength of evidence for specific design features in these interventions was low or insufficient. This is attributable, in large part, to differences in the types of interventions and, subsequently, in the mix of results. Looking closely within categories of design features, however, the following specific design features seemed to improve comprehension for low-health-literacy populations in one or a few studies: (1) presenting essential information by itself (., information on hospital death rates without other distracting information, such as information on consumer satisfaction); (2) presenting essential information first (., information on hospital death rates before information about consumer satisfaction);.
