A cross sectional survey of knowledge, attitude and practices related to house flies among dairy farmers in Punjab, Pakistan

Table 5 Ordinal logistic regression models of socio-demographics and knowledge of the house fly

Model	H₀	−2LL*	P£
Locality + Age + Education + Int**		142.76	---
Locality + Age + Education	β_Int = 0	146.83	0.250
Locality + Education	β_Age = 0	151.11	0.015

*-2 log likelihood, ** All possible 2 way interactions, £ p values based chi square of −2 log likelihood difference between the reduced model and initial model. The predictors: localities, age and education level of the farmers had P values < 0.25 and were the potential predictors in univariate analysis (Figure 2). These three potential predictors were then entered in the multivariate model by following the methodology of Hosmer and Lemeshow [17]. In succeeding steps, the predictors with a P > 0.05 in the previous step were removed from the model until complete loss of fit (P < 0.05) of the model was achieved.

ISSN: 1746-4269