Table 6.

Eight Criteria used in Review II to Assess PtDAs’ Reading Level Accessibility and PtDA Trials’ Attention to Literacy

Original IPDAS Literacy Criteria
1	Is the PtDA written at a level that can be understood by the majority of patients in the target group?
2	Is the PtDA written at a grade 8 or equivalent level or less according to readability score [SMOG or FRY]?
3	Does the PtDA provide ways to help patients understand information other than reading [audio, video, in-person]?
PtDA Trial Design Criteria
4	Was the PtDA web-based?
5	Were study groups stratified by literacy?
6	Were study groups stratified by education?
7	Were low literacy groups over-sampled?
8	Were any conclusions drawn regarding literacy? (If yes, what?)