. 2016 Oct 20;49(1):213–220. doi: 10.1007/s11250-016-1159-6

Table 2.

Univariable analysis of potential factors for AIV subtype H9 infection

Factors	Level of response	H9 +ve	H9 −ve	OR	95 % CI	p value
Wild birds on farm	Yes	44	36	10.59	2.96–37.86	0.000281^a
Wild birds on farm	No	3	26	10.59	2.96–37.86	0.000281^a
Dropping removal	Before catching	5	47	1.0280	1.01–7.73	0.0476^a
Dropping removal	After catching	42	15	1.0280	1.01–7.73	0.0476^a
Farm fully fenced	Yes	3	17	0.18	0.05–0.66	0.0096^a
Farm fully fenced	No	44	45	0.18	0.05–0.66	0.0096^a
Rubber boots channing	Yes	12	33	0.3	0.13–0.69	0.00432^b
Rubber boots channing	No	35	29	0.3	0.13–0.69	0.00432^b
Clean cages before entering farm	Yes	9	31	0.24	0.1–0.57	0.00135^b
Clean cages before entering farm	No	38	31	0.24	0.1–0.57	0.00135^b
Movement of workers within farms	No	34	55	3	1.09–8.28	0.0334^a
Movement of workers within farms	Yes	13	7	3	1.09–8.28	0.0334^a
Gloves changing	Yes	8	24	0.32	0.13–0.81	0.162
Gloves changing	No	39	38	0.32	0.13–0.81	0.162
Vehicles entry into the farm	Yes	38	42	2.01	0.82–4.95	0.12^a
Vehicles entry into the farm	No	9	20	2.01	0.82–4.95	0.12^a
Foot bath	Yes	40	44	0.43	0.16–1.13	0.014^b
Foot bath	No	7	18	0.43	0.16–1.13	0.014^b
Share equipment	Yes	7	4	2.537	0.7–9.24	0.1580^a
Share equipment	No	40	58	2.537	0.7–9.24	0.1580^a
Waste disposal	Properly disposed	9	1	0.24	0.02–2.39	0.224^a
Waste disposal	Not properly disposed	38	61	0.24	0.02–2.39	0.224^a
Ventilation system	Fan	45	54	3.33	0.67–16.5	0.1401^a
Ventilation system	Natural	2	8	3.33	0.67–16.5	0.1401^a

^aRisk factors

^bProtective factors