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Study outcome measures.
| Measures | Baseline | 1 month | 3 months |
| Demographic and clinical variables | Xa | —b | — |
| Medical outcomes study questionnaire short form 36 | X | — | — |
| National assessment for adult literacy | X | — | — |
| Clinical trials literacy | X | X | X |
| Message effectiveness scale | X | X | X |
aX denotes what measure to ascertain.
bEmpty cells signify not to capture the measure at the timepoint.
