Table 2.

Prevalence estimate of CU in all Brazilian adults by age groups

Age (years)	Currently treated			Ever diagnosed			Ever experienced
	%	95% LCL	95% UCL	%	95% LCL	95% UCL	%	95% LCL	95% UCL
18–24	0.17	0.09	0.25	0.27	0.16	0.37	0.32	0.21	0.43
25–34	0.18	0.12	0.24	0.43	0.28	0.57	0.59	0.43	0.75
35–44	0.31	0.12	0.51	0.53	0.32	0.74	0.64	0.42	0.87
45–54	0.31	0.08	0.55	0.61	0.35	0.88	0.74	0.46	1.02
55–64	0.12	0.04	0.21	0.32	0.15	0.48	0.53	0.28	0.77
65 and older	0.03	0.00	0.06	0.10	0.00	0.25	0.11	0.00	0.25

LCL lower confidence limit, UCL upper confidence limit, CU chronic urticaria