Multivariate logistic regression modeling revealed several significant predictors of adherence , including beliefs concerning whether insurance covered most of the eye examination cost ( P < 0.01 ) , whether there were general barriers that make it difficult to obtain an eye examination ( P < 0.01 ) , whether obtaining an eye examination was a top priority ( P = 0.02 ) , and whether diabetic eye disease can be seen with an examination ( P = 0.05 ) .