Summary of the content of the two types of questionnaires that will be used in the study
| Questionnaire sections | Questionnaire type I | Questionnaire type II |
| General section | X | X |
| Health literacy measurements | ||
| NVS-IT | X | X |
| The three-item BHLS | X | |
| Two subjective numeracy items | X | |
| HLS-EU-Q16 and HLS-EU-Q6 | X | |
| Health outcome variables | X | X |
BHLS, Brief Health Literacy Screener; HLS-EU-Q6, short-short form of the European Health Literacy Survey Questionnaire; HLS-EU-Q16, short form of the European Health Literacy Survey Questionnaire; NVS-IT, Italian version of the Newest Vital Sign.