Table 1.

Odds ratios and 95% confidence intervals for G. lamblia infection in children and associated risk factors [N = 365]

Character/Risk factor		N	N infected	% infected	X2	P-value	OR	95% CI
1. Gender	Male	211	15	7.1	1.693	0.193	1.888	0.715-4.982
	Female	154	6	3.9
2. Age [months]	< 6	74	3	4.1	2.038	0.729	1.893	0.675-1.956
	6 - 12	165	8	4.8			1.914	0.564-2.432
	13 - 24	107	8	7.5			2.824	0.432-2.854
	25 - 36	9	1	11.1			3.456	0.325-3.654
	37 - 48	10	1	10.2			2.377	0.435-2.547
3. Education level of mother	Tertiary	28	2	7.1	1.264	0.732	0.733	0.234-1.035
	Secondary	250	16	6.4			0.914	0.543-1.543
	Primary	40	1	2.5			1.232	0.876-1.546
	None	47	2	4.3			2.548	0.453-2.748
4. Source of drinking water	Sachet	337	20	5.9	0.317	0.853	1.645	0.543-1.246
	Pipe-borne	26	1	3.8			0.986	0.234-1.429
	Both	2	0	0			1.000	0.982-1.023
5. Breast-feeding habits	Exclusive	218	12	5.5	5.342	0.069	3.148	0.983-3.276
	Not exclusive	131	6	4.6			2.827	0.782-2.901
	N/R	16	3	18.8			1.529	0.916-1.876
6. Source of food	Home	217	13	6	2.535	0.469	0.905	0.675-1.456
	Street	10	1	10			2.886	0.564-2.976
	Both	110	4	3.6			1.853	0.692-2.012
	N/R	28	3	10.7			0.543	0.342-1.398
7. Presence of domestic animals at home	Yes	156	9	5.8	0.001	0.999	1.000	0.413-2.448
	No	209	12	5.7
8. Seasonal variations	Dry	189	13	6.9	0.915	0.33	1.551	0.627-3.037
	Rainy	176	8	4.5

Age of G. lamblia positive controls: 12-24 months =1; 36-42 months=2; and 42-48 months =3