Table 5.

Logistic regression analysis of socio demographic factors associated with Giardia intestinalis among the inhabitants of Barak Valley inhabitants

Study groups		Microscopy and PCR results					ODDS RATIO (OR)	Confidence interval (CI 95%)	P value	Total no. of specimen
		Only microscopic positive	Serological test positive	Only PCR positive	Rate of infection of PCR positive (%)	No. of negatives by PCR
Sex	Male	102	106	107	21.27	446	1	0.9262–1.6049	0.1575	503
	Female	156	158	160	24.06	547	1.2192			665
Age	0–5 years	94	97	98	27.22	290	1.9149	1.2558–2.9200	0.0025	318
	5–12 years	63	67	66	21.22	235	1.5915	1.0175–2.4893	0.0417	311
	12–18 years	66	65	67	20.24	264	1.4381	0.9222–2.2427	0.1090	331
	Adults	35	35	36	17.80	204	1			208
Source of Drinking water	Municipality supply water	85	87	89	17.76	412	2.1741	1.6082–2.9391	< 0.0001	501
	Tube well	29	33	31	14.97	176	2.6664	1.7360–4.0954	< 0.0001	207
	River	144	146	147	31.96	313	1			460
Symptoms	Diarrhoeal	63	65	66	18.18	297	1		0.0932	363
	Abdominal pain	103	108	109	28.45	366	1.3402	0.9521–1.8864		383
	Asymptomatic	92	93	92	21.80	330	1.2545	0.8815–1.7855	0.2079	422