Table S4.

Flesch reading ease table

Reading ease score	Description	Predicted reading grade
90–100	Very easy	5th grade
80–90	Easy	6th grade
70–80	Fairly easy	7th grade
60–70	Standard	8th–9th grade
50–60	Fairly difficult	10th–11th grade
30–50	Difficult	College grade
0–30	Very difficult	College graduate