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Table 2 Descriptive statistics: selected attributes (N = 67)

From: An analysis of the readability characteristics of oral health information literature available to the public in Tasmania, Australia

Source Commercial (n = 22) Government (n = 14) Professional (n = 22) Other (n = 9)
Feature
Structure and format
Word count     
 • Min-Max 193–1759 81–660 280–3856 193–1105
 • Mean (SD) 852 (371) 272.5 (186.4) 2061.4 (949.6) 621 (329)
 • Median 765 178 1738 666
Font size     
 • Min-Max 7–12 10–14 7–12 9–12
 • Mean (SD) 9.7 (1.1) 11.4 (0.9) 10.8 (0.9) 10.2 (1.3)
 • Median 10 11 11 10
Pictures     
 • Min-Max 2–17 1–13 1–9 0–5
 • Mean (SD) 7.4 (4.0) 6.1 (4.1) 3.2 (2.2) 2.3 (1.8)
 • Median 6.5 6 2 3
Readability
Flesch-Kincaid Grade Level     
 • Min-Max 3.1–12.6 4.3–11.1 6.9–10.9 5.1–9.8
 • Mean (SD) 8.3 (2.1) 5.6 (1.8) 8.9 (0.9) 7.6 (1.5)
 • Median 8.2 5 9.1 7.8
SMOG     
 • Min-Max 6–13 6–13 9–12 8–11
 • Mean (SD) 10.3 (1.7) 7.9 (1.8) 10.6 (0.8) 9.6 (1.1)
 • Median 10.5 7.5 11 9
Flesch Reading Ease     
 • Min-Max 43.5–98.1 46.3–85.7 50.5–68.8 56.7–74.7
 • Mean (SD) 59.8 (12.2) 74.2 (9.9) 58.4 (5.6) 65.1 (6.1)
 • Median 58.65 75.8 56.3 65.3
Professional jargon words     
 • Range 0–13 0–3 4–18 0–4
 • Mean (SD) 4.3 (4.0) 0.9 (0.9) 9.8 (4.2) 1.6 (1.5)
 • Median 3 1 9 1