Table 3.

Bivariate relationships between FCCHL and sociodemographic characteristics (n = 2342)

	Functional HL		Communicative HL		Critical HL		FCCHL
	Mean ± SD	P	Mean ± SD	P	Mean ± SD	P	Mean ± SD	P
Age
18–40	19.57 ± 3.93	<0.001^a	20.63 ± 2.78	0.617	16.32 ± 2.75	<0.001	56.53 ± 6.32	<0.001^b
41–60	18.70 ± 4.27		20.62 ± 3.12		15.86 ± 3.13		55.20 ± 7.34
61–83	18.49 ± 4.27		20.78 ± 3.15		15.60 ± 3.43		54.88 ± 7.38
French maternal Language
No	17.35 ± 4.95	0.006	20.96 ± 2.96	0.472	16.68 ± 2.36	0.094	55.59 ± 7.04	0.548
Yes	18.98 ± 4.16		20.65 ± 3.01		15.95 ± 3.09		55.00 ± 6.95
Education
Primary/secondary	17.36 ± 4.36	<0.001	20.11 ± 3.30	<0.001	15.57 ± 3.23	<0.001	53.05 ± 7.47	<0.001
≤ Three-years higher education	18.71 ± 4.12		20.48 ± 2.95		15.63 ± 3.15		54.84 ± 6.78
> Three-years higher education	19.56 ± 4.05		20.94 ± 2.96		16.34 ± 2.94		56.86 ± 6.92
Deprivation (EPICES Index)
No	19.13 ± 4.08	<0.001	20.73 ± 3.02	0.003	15.97 ± 3.06	0.721	55.84 ± 7.00	<0.001
Yes	18.29 ± 4.42		20.25 ± 2.98		15.91 ± 3.17		54.46 ± 7.02

HL Health Literacy, FCCHL Functional, Communicative and Critical Health Literacy

^ap-value = 0.411 if functional HL score computed without FCCHL2, item found to be non-invariant across age groups

^bp-value = 0.053 if FCCHL score computed without FCCHL2, item found to be non-invariant across age groups