Leprosy in Southern Brazil: a twenty-year epidemiological profile

Data extracted from a National Database were analyzed for clinical features and compared to 1980s data. Tendency was assessed via stationarity analysis.

RESULTS:

Between 1990 and 2011, 4,770 cases were reported (0.21/10,000 inhabitants; 95% CI = 0.19-0.24). Detection was slightly higher among males, 1.9% cases were among children and most multibacillary (74.7%) at diagnosis.

CONCLUSIONS:

Leprosy is controlled in RS, but most cases are multibacillary. Early identification is important to avoid disabilities due to late diagnosis.

Keywords:
Leprosy; Epidemiological survey; Rio Grande do Sul

Year of diagnosis	Unknown	0-14 yo	Percentage	≥15 yo	Percentage	Total	Male	Female	Ratio
1982-1986	0	23	2.2	999	97,8	1,022	508	524	0.97
1987-1988	0	18	5.4	314	94.6	332	185	151	1.23
Total 1982-1988	0	41	3.0	1,313	96.9	1,354	693	675	1.03
1990	0	6	3.5	167	96.5	173	105	68	1.54
1991	1	5	2.8	171	97.2	176	92	84	1.10
1992	4	7	3.2	211	96.8	218	109	109	1.00
1993	4	3	1.7	174	98.3	177	96	81	1.19
1994	2	6	3.1	185	96.9	191	116	75	1.55
1995	5	2	1.1	189	98.9	191	97	94	1.03
1996	6	3	1.4	217	98.6	220	120	100	1.20
1997	5	6	2.7	212	97.2	218	109	109	1.00
1998	2	4	1.9	198	98.0	202	119	83	1.43
1999	0	0	0	216	100	216	121	95	1.27
2000	0	5	2.2	225	97.8	230	112	118	0.95
2001	0	5	2.2	219	97.8	224	121	103	1.17
2002	0	6	2.1	280	97.9	286	143	143	1.00
2003	0	5	1.8	265	98.1	270	130	140	0.93
2004	0	10	3.8	255	96.2	265	120	145	0.83
2005	0	2	0.7	263	99.2	265	134	131	1.02
2006	1	0	0	251	99.6	252	126	126	1.00
2007	0	4	1.8	222	98.2	226	111	115	0.97
2008	0	2	0.9	215	99.1	217	122	95	1.28
2009	0	2	1.0	191	98.9	193	94	99	0.95
2010	0	5	2.9	165	97.1	170	93	77	1.21
2011	0	2	1.0	188	98.9	190	103	87	1.18
Total 1990 - 2011	30	90	1.9	4,679	98.1	4,770	2,493	2,277	1.09

Year of diagnosis	T	%	L+B	%	Unknown	%	PB	%	MB	%	Total
1982-1986	236	25.6	687	74.4	-	-	-	-	-	-	-
1987-1988	35	12.4	247	87.6	-	-	-	-	-	-	-
Total 1982-1988	271	22.5	934	77.5	-	-	-	-	-	-	-
1990	27	17.9	124	82.1	0	0.0	49	28.3	124	71.7	173
1991	31	19.5	128	80.5	0	0.0	48	27.3	128	72.7	176
1992	35	17.3	167	82.7	0	0.0	51	23.4	167	76.6	218
1993	38	24.2	119	75.8	0	0.0	59	33.3	118	66.7	177
1994	41	23.3	135	76.7	0	0.0	56	29.3	135	70.7	191
1995	40	22.5	138	77.5	0	0.0	53	27.7	138	72.2	191
1996	44	21.1	164	78.8	0	0.0	56	25.4	164	74.5	220
1997	33	16.4	168	83.6	0	0.0	50	22.9	168	77.1	218
1998	39	20.2	154	79.8	0	0.0	48	23.8	154	76.2	202
1999	48	24.0	152	76.0	0	0.0	62	28.7	154	71.3	216
2000	36	17.9	165	82.1	2	0.9	61	26.5	167	72.6	230
2001	38	21.6	138	78.4	3	1.3	78	34.8	143	63.8	224
2002	33	15.4	181	84.6	7	2.4	65	22.7	214	74.8	286
2003	41	20.2	162	79.8	5	1.8	62	22.9	203	75.2	270
2004	39	17.6	182	82.3	3	1.1	61	23.0	201	75.8	265
2005	37	16.5	187	83.5	1	0.4	50	18.9	214	80.7	265
2006	42	80.1	167	79.9	2	0.8	55	21.8	195	77.4	252
2007	17	11.8	127	88.2	1	0.4	44	19.5	181	80.1	226
2008	36	22.1	127	77.9	1	0.5	53	24.4	163	75.1	217
2009	32	20.2	126	79.7	0	0.0	44	22.8	149	77.2	193
2010	32	23.9	102	76.1	0	0.0	40	23.5	130	76.5	170
2011	27	19.7	110	80.3	1	0.5	34	17.9	155	81.6	190
Total 1990-2011	786	19.6	3,223	80.4	26	0.5	1,179	24.7	3,565	74.7	4,770

Sociedade Brasileira de Medicina Tropical - SBMT Caixa Postal 118, 38001-970 Uberaba MG Brazil, Tel.: +55 34 3318-5255 / +55 34 3318-5636/ +55 34 3318-5287, http://rsbmt.org.br/ - Uberaba - MG - Brazil
E-mail: rsbmt@uftm.edu.br

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[1] Corresponding author: Dra. Fernanda Sales Luiz Vianna. e-mail:fslvianna@gmail.com