Concordance between two instruments for health literacy assessment

Correspondence: Matheus Rodrigues Lopes - Universidade Federal do Vale do São Francisco,
Campus Paulo Afonso, Rua da Aurora, S/N, Quadra 27, Lote 3, Paulo Afonso, BA, Brazil. Postcode: 48607-190. E-mail:
matheuslopesbio@gmail.com

groupsAuthors’ contributions

Cangussu LR, Sartori Alho EA and Cardoso FEL designed the study, analyzed and interpreted the data and drafted the first version of the manuscript. Tenório APO and Barbosa RHA analyzed and interpreted the data and critically reviewed the manuscript. Lopes JM and Lopes MR designed the research, analyzed and interpreted the data, critically reviewed and drafted the first version of the manuscript. All authors approved the final version and are responsible for all aspects of the work, including ensuring its accuracy and integrity

Associate Editor

Taís Freire Galvão - 0000-0003-2072-4834

General Editor

Leila Posenato Garcia - 0000-0003-1146-2641.

Variables	n (%)	Adequate health literacy n (%)
Variables	n (%)	SAHLPA-18^a	S-TOFHLA^b
Sex
Female	271 (72.8)	103 (38.0)	113 (41.7)
Male	101 (27.2)	24 (23.8)	29 (28.7)
Age (years)
≤30	62 (16.7)	12 (19.4)	38 (61.3)
31-59	217 (58.3)	90 (33.2)	97 (44.7)
≥60	93 (25.0)	25 (26.9)	7 (7.5)
Education
Incomplete elementary education	146 (39.2)	19 (13.0)	16 (11.0)
Commplete elementary education	27 (7.3)	10 (37.0)	07 (25.9)
Incomplete high school	29 (7.8)	7 (24.1)	12 (41.4)
Complete high school	124 (33.3)	52 (41.9)	70 (56.5)
Incomplete higher school	10 (2.7)	7 (70.0)	9 (90.0)
Complete higher school	36 (9.7)	32 (88.9)	28 (77.8)
Economic Classification
A	7 (1.9)	6 (85.7)	3 (42.9)
B1	18 (4.8)	12 (66.7)	12 (66.7)
B2	66 (17.8)	34 (51.5)	38 (57.6)
C1	55 (14.8)	22 (40.0)	24 (43.6)
C2	118 (31.7)	38 (32.2)	46 (39.0)
D - E	108 (29.0)	15 (13.9)	19 (17.6)
Group
Without chronic disease	70 (18.8)	22 (31.4)	47 (67.1)
With chronic kidney disease	92 (24.7)	21 (22.8)	20 (21.7)
With systemic arterial hypertension	131 (35.2)	52 (36.7)	55 (42.0)
With diabetes	79 (21.3)	32 (40.5)	20 (25.3)

SAHLPA-18	S-TOFHLA			Total n (%)	Kappa	p-value^a
SAHLPA-18	Inadequate n (%)	Adequate n (%)	Borderline n (%)	Total n (%)	Kappa	p-value^a
Without previous disease
Inadequate	17 (24.3)	27 (38.6)	4 (5.7)	48 (68.6)	0,21	0.007
Adequate	2 (2.9)	20 (28.6)	-	22 (31.4)
Total	19 (27.1)	47 (67.1)	4 (5.7)	70 (100.0)
Kidney disease
Inadequate	52 (56.5)	10 (10.9)	9 (9.8)	71 (77.2)	0,27	0.001
Adequate	8 (8.7)	10 (10.9)	3 (3.3)	21 (22.8)
Total	60 (65.2)	20 (21.7)	12 (13.0)	92 (100.0)
Hypertension
Inadequate	46 (35.1)	15 (11.5)	18 (13.7)	79 (60.3)	0,40	<0.001
Adequate	9 (6.9)	40 (30.5)	3 (2.3)	52 (39.7)
Total	55 (42.0)	55 (42.0)	21 (16.0)	131 (100.0)
Diabetes
Inadequate	42 (53.2)	4 (5.1)	1 (1.3)	47 (59.5)	0,45	<0.001
Adequate	12 (15.2)	16 (20.3)	4 (5.1)	32 (40.5)
Total	54 (68.4)	20 (25.3)	5 (6.3)	79 (100.0)
Total
Inadequate	157 (42.2)	56 (15.1)	32 (8.6)	245 (65.9)	0,35	<0.001
Adequate	31 (8.3)	86 (23.1)	10 (2.7)	127 (34.1)
Total	188 (0.5)	142 (8.2)	42 11.3)	372 (100.0)

Age	Sex	Without/previous disease			Kidney disease			Hypertension			Diabetes
Age	Sex	Kappa	n	p-value^a	Kappa	n	p-value	Kappa	n	p-value	Kappa	n	p-value
Economic Classification: C, D e E
≤30	Female	0.11	33	0.100	-	9	-	0.14	4	0.240	-	1	-
	Male	0.20	4	0.500	0.11	5	0.360	-	1	-	-	-	-
	Total	0.12	37	0.070	0.11	14	0.170	0.13	5	0.170	-	1	-
31-59	Female	0.10	14	0.590	0.37	18	0.040	0.31	61	0.001	0.40	23	0.030
	Male	0.50	4	0.240	0.48	27	0.003	0.46	7	0.140	0.57	6	0.120
	Total	0.19	18	0.300	0.45	45	<0.001	0.32	68	0.001	0.43	29	0.010
≥60	Female	-	-	-	-	5	-	0.07	14	0.530	0.14	23	0.030
	Male	-	-	-	-	9	-	-	5	1.000	1.00	8	0.005
	Total	-	-	-	-	14	-	0.06	19	0.610	0.24	47	0.007
Total	Female	0.11	47	0.130	0.21	32	0.090	0.29	79	<0.001	0.27	47	0.010
	Male	0.33	8	0.200	0.44	41	<0.001	0.19	13	0.220	0.75	14	0.003
	Total	0.14	55	0.060	0.33	73	<0.001	0.27	92	<0.001	0.34	61	0.001
Economic Classification: A e B^b
31-59	Female	0.11	10	0.720	0.07	5	0.810	0.59	23	0.002	-	9	-
	Male	1.00	2	0.160	1.00	3	0.080	0.27	4	0.290	-	1	-
	Total	0.40	12	0.160	0.27	8	0.330	0.54	27	0.010	0.61	10	0.030
≥60	Female	-	-	-	0.14	4	0.500	0.66	6	0.080	0.57	6	0.120
	Male	-	-	-	-	6	-	0.58	5	0.050	-	2	-
	Total	-	-	-	0.08	4	0.490	0.53	11	0.010	0.33	8	0.120
Total	Female	0.11	13	0.650	0.07	9	0.730	0.66	29	<0.001	0.70	15	0.007
	Male	1.00	2	0.150	0.21	10	0.490	0.50	10	0.020	0.14	3	0.380
	Total	0.28	15	0.250	0.05	19	0.750	0.63	39	<0.001	0.55	18	0.009
Total
≤30	Female	0.14	36	0.050	-	9	-	0.14	4	0.240	-	1	-
	Male	0.20	4	0.500	0.07	6	0.430	0.33	2	0.150	-	-	-
	Total	0.15	40	0.040	0.09	15	0.200	0.20	6	0.080	-	1	-
31-59	Female	0.21	24	0.230	0.27	23	0.090	0.43	84	<0.001	0.58	7	0.080
	Male	0.66	6	0.080	0.55	30	<0.001	0.38	11	0.070	0.59	39	<0.001
	Total	0.33	30	0.040	0.42	53	<0.001	0.42	95	<0.001	0.21	29	0.010
≥60	Female	-	-	-	0.05	9	0.700	0.32	20	0.060	0.21	29	0.010
	Male	-	-	-	0.04	15	0.680	0.24	10	0.140	0.51	10	0.020
	Total	-	-	-	0.05	24	0.570	0.29	30	0.010	0.27	39	0.002
Total	Female	0.18	60	0.030	0.14	41	0.190	0.43	108	<0.001	0.43	62	<0.001
	Male	0.44	10	0.090	0.39	51	0.001	0.32	23	0.010	0.52	17	0.010
	Total	0.21	70	0.010	0.27	92	0.001	0.40	131	<0.001	0.45	79	<0.001

[TFN4] a) SAHLPA: short assessment of health literacy for Portuguese-speaking adults; b) S-TOFHLA: short test of functional health literacy in adults.

Concordance between two instruments for health literacy assessment *

Concordance between two instruments for health literacy assessment ^*