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

Table 3

Univariate analyses of intestinal parasitic infections and potential risk factors in the period 1992–1996 and in 2010, Northwest Brazil.

Risk factors	Parasite positive	Period			Parasite positive	Period
		1992–1996				2010
	(%)		OR	95% CI	(%)		OR	95% CI
Persons per household
≤5	111 (43.2)	0.19	1.45	0.82–2.56	53 (60.2)	0.003	2.11	1.27–3.52
>5	146 (56.8)				35 (39.8)
Floors conditions
Ceramic/cement	186 (72.4)	0.85	0.94	0.50–1.76	77 (87.5)	0.001	4.33	1.73–10.8
Dirt floor	71 (27.6)				11 (12.5)
Piped water inside the household
Yes	168 (65.4)	0.39	1.30	0.70–2.43	82 (93.2)	0.006	5.08	1.40–18.4
No	89 (34.6)				06 (6.8)
Rooms of the house
>4	48 (18.7)	0.99	0.99	0.48–2.06	33 (37.5)	0.11	1.48	0.91–2.43
≤4	209 (81.3)				55 (62.5)
Toilets
Yes	220 (85.6)	0.25	1.51	0.73–3.12	87 (98.9)	0.38	0.31	0.19–5.00
No	37 (14.4)				01 (1.1)
Drinking water treatment
Yes	161 (62.6)	0.81	1.07	0.59–1.91	40 (45.5)	0.05	0.62	0.38–1.01
No	96 (37.4)				48 (54.5)
Excreta disposal
Yes	05 (1.9)	0.89	0.86	0.10–7.58	49 (55.7)	0.15	1.42	0.87–2.31
No	252 (98.1)				39 (44.3)
Garbage collection
Yes	212 (82.5)	0.46	1.35	0.60–3.04	85 (96.6)	0.72	0.79	0.21–2.88
No	45 (17.5)				03 (3.4)
Hands washing habit
Yes	167 (65.0)	0.19	1.46	0.82–2.59	39 (44.3)	0.81	0.94	0.58–1.52
No	90 (35.0)				49 (55.7)
Wearing shoes habit
Yes	247 (96.1)	0.67	1.32	0.35–4.96	87 (98.9)	0.69	0.62	0.05–6.93
No	10 (3.9)				01 (1.1)
Children playing the street
Yes	194 (75.5)	0.04	1.83	1.00–3.33	65 (73.9)	<0.001	2.52	1.48–4.28
No	63 (24.5)				23 (26.1)
Use of antiparasitic medication
Yes	186 (72.4)	0.54	0.81	0.42–1.57	49 (55.7)	0.35	0.79	0.49–1.28
No	71 (27.6)				39 (44.3)