Table 2.

Comparison of the reading level scores calculated by 8 readability scales of patient education materials (PEMs) from the Atlantic Pediatric Society (APS) with 2 other pediatric associations' PEMs.

Readability test	P value across all PEMs	P value for the pairwise comparison of the APSa PEMsb to other pediatric associations' PEMsc
		Caring for Kids	Pediatric Endocrine Group
CLId	<.001	<.001	<.001
NDCe	<.001	<.001	.02
DRP-GEf	<.001	<.001	<.001
FKg	<.001	<.001	.001
FORCASTh	<.001	<.001	<.001
GFi	<.001	<.001	<.001
NFCj	.08	.38	.13
SMOGk	<.001	.003	<.001

^aAPS: Atlantic Pediatric Society.

^bPEM: patient education material.

^cP values for comparisons across the different pediatric associations’ PEMs were calculated using analysis of variance (ANOVA) with a Welch correction nonparametric equivalent when applicable. P values for pairwise comparisons between PEMs were calculated using the Tukey, Tamhane, and Dunnett test.

^dCLI: Coleman-Liau index.

^eNDC: New Dale-Chall readability formula.

^fDRP-GE: Degrees of Reading Power–grade equivalent test.

^gFK: Flesch-Kincaid Grade Level.

^hFORCAST: Ford, Caylor, Sticht scale.

ⁱGF: Gunning Fog index.

^jNFC: New Fog Count.

^kSMOG: Simple Measure of Gobbledygook index.