Prevalence, Intensity, and Risk Factors for Helminth Infections in Pigs in Menoua, Western Highlands of Cameroon, with Some Data on Protozoa

Table 3

Logistic regression analysis of risk factors for Hyostrongylus rubidus infection in pig farms in Menoua Division. Results are expressed in terms of odd ratio (OR) and 95% confidence interval (CI).

Factor				Univariate analysis		Multivariate analysis
			(%)	OR	value	OR	95% CI	value
Continuous variables
Farmer age (year)	597	489	81.9	0.98	0.17
Pig age (month)	597	489	81.9	0.97	0.12
Herd size	597	489	81.9	0.94	0.01	0.95	0.91-0.98	0.01*
Categorical variables
Farmer gender
Male	488	403	82.6	1.26	0.36
Female	109	86	78.9	1.00
Farmer education level
Higher education	51	45	88.2	0.00	0.99
Secondary school	378	298	78.8	0.00	0.99
Primary school	158	136	86.1	0.00	0.99
Never schooled	10	10	100.0	1.00
Animal breed
Crossed breed	547	444	81.2	0.00	0.99
Duroc	10	10	100.0	1.00	1.00
Landrace	2	0	0.0	0.00	0.99
Large white	35	33	94.3	0.00	0.99
Pietrain	2	2	100.0	1.00
Naima	1	0	0.0	—
Housing
Wooden piggery	525	426	81.1	0.00	0.99
Semipermanent structure	39	30	76.9	0.00	0.99
Permanent structure	33	33	100.0	1.00
Floor type
Cemented	201	162	80.6	0.87	0.55
Non cemented	396	327	82.6	1.00
Contact with domestic animals
Yes	208	202	97.1	11.96	0.01	5.03	2.07-12.18	0.01*
No	389	287	73.8	1.00		1.00
Contact with wild life
Yes	545	441	80.9	0.35	0.05
No	52	48	92.3	1.00

 = number of samples examined;  = number positive; (%) = prevalence in percentage.  = significant value.