Comparison between Two Decades of Prevalence of Intestinal Parasitic Diseases and Risk Factors in a Brazilian Urban Centre

Table 1

Prevalence of intestinal parasites in stool collected in the period 1992–1996 and in 2010, Northeast Brazil.

Intestinal parasites	Period		Univariate analysis			Multivariate analysis
	Period: 1992–96; (%)	Period: 2010; (%)		OR	95% CI		OR	95% CI
Protozoa
Giardia duodenalis	68 (21.5)	16 (4.3)	<0.001	0.16	0.09–0.29	<0.001	0.26	0.13–0.51
Entamoeba histolytica/dispar	29 (9.2)	01 (0.3)	<0.001	0.02	0.004–0.19	0.05	0.12	0.01–1.08
Entamoeba coli	107 (33.8)	12 (3.8)	<0.001	0.06	0.03–0.12	<0.001	0.13	0.06–0.26
Endolimax nana	25 (7.9)	04 (1.3)	<0.001	0.12	0.04–0.37	0.02	0.23	0.06–0.83
Helminthes
Ascaris lumbricoides	187 (59.2)	49 (15.5)	<0.001	0.10	0.07–0.15	<0.001	0.19	0.12–0.31
Trichuris trichiura	153 (48.4)	35 (11.1)	<0.001	0.11	0.07–0.16	0.001	0.42	0.24–0.71
Ancylostomatidae	21 (6.6)	01 (0.3)	<0.001	0.03	0.005–0.28	0.04	0.10	0.01–0.93
Enterobius vermicularis	13 (4.1)	05 (1.6)	0.02	0.31	0.11–0.90	0.85	0.89	0.26–2.97
Hymenolepis nana	21 (6.6)	02 (0.6)	<0.001	0.07	0.01–0.32	0.04	0.17	0.03–0.92