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Table 4 Median readability scores for BOS and AAO PILs

From: A quality assessment of orthodontic patient information leaflets

Leaflet source Readability tool Median IQR
BOS (N = 21) Flesch Reading Ease 73.1 71.5–76
Flesch-Kincaid Grade Level 6.3 5.9–6.9
SMOG index 6.7 6.4–7.2
AAO (N = 15) Flesch Reading Ease 50.8 46–56.1
Flesch-Kincaid Grade Level 10.1 9.1–11.5
SMOG index 9.3 8.9–10.7