The Global Quality Score criteria.
| Grading | Description of Quality |
| 1 | Poor quality; is unlikely of be to use for patient education. |
| 2 | Poor quality; is of limited use to patients because only some information is present. |
| 3 | Suboptimal quality and flow; is somewhat useful to patients; important topics are missing, some information is present. |
| 4 | Good quality and flow; useful to patients because most important topics are covered. |
| 5 | Excellent quality and flow; is highly useful to patients. |