Trends in the prevalence of self-reported diabetes in Brazilian capital cities and the Federal District, 2006–2014

Table 3 Adjusted prevalence of self-reported diabetes in 2006 and 2014 and trends over this time span overall and in specific strata

Strata	2006	2014	Annual increase
Strata	% (95 % CI)	% (95 % CI)	%	(95 % CI)	P	R²
Total	5.7 (5.3–6.0)	8.0 (7.6–8.5)	0.25	0.13–0.37	0.002	0.77
Sex
Men	5.3 (4.6–5.8)	7.8 (7.0–8.6)	0.28	0.21–0.35	<0.001	0.93
Women	6.0 (5.5–6.5)	8.2 (7.6–8.8)	0.23	0.07–0.39	0.012	0.62
Age
18–24	1.4 (0.7–2.0)	1.2 (0.5–2.0)	0.02	−0.09 to 0.14	0.708	0.02
25–34	1.4 (0.8–2.0)	1.8 (1.2–2.4)	0.02	−0.12 to 0.16	0.728	0.02
35–44	2.9 (2.3–3.4)	3.8 (2.8–4.7)	0.11	0.06–0.16	0.002	0.77
45–54	6.4 (5.4–7.3)	10.5 (9.1–11.9)	0.33	0.07–0.59	0.020	0.56
55–64	13.4 (11.6–15.2)	16.1 (14.3–17.9)	0.32	0.23–0.62	0.038	0.48
≥65	16.1 (14.3–17.8)	21.3 (19.3–23.3)	0.52	0.28–0.76	0.001	0.79
Educational attainment (years)
≥12	4.1 (3.3–4.8)	5.4 (4.6–6.2)	0.16	0.02–0.31	0.033	0.50
9–11	4.6 (4.1–5.3)	7.1 (6.4–7.9)	0.26	0.08–0.43	0.010	0.63
0–8	6.4 (5.8–7.0)	9.4 (8.6–10.2)	0.33	0.19–0.47	0.001	0.81
BMI category
<25 kg/m²	4.1 (3.7–4.5)	6.3 (5.6–6.9)	0.16	0.03–0.29	0.056	0.53
25 ≤ BMI < 30 kg/m²	6.0 (5.4–6.7)	7.9 (7.0–8.7)	0.24	0.12–0.37	0.003	0.75
≥30 kg/m²	9.6 (8.2–11.1)	11.8 (10.6–13.0)	0.25	0.02–0.53	0.063	0.41

Vigitel, Brazilian capital cities and the Federal District
Adjusted through multiple linear regression for changes over time in all other variables in the table
Prevalences are weighted to reflect the sociodemographic distribution of adult population of the sampled cities in each year of the survey
Level of significance: 5 %
BMI body mass index

ISSN: 1758-5996