Research and Discussion on the Relationships between Noise-Induced Hearing Loss and ATP2B2 Gene Polymorphism

Figure 1

Best-fit model gained by the analysis of MDR. The implications of the bars and background color in each multifactor cell are as follows. The left bars represent the sum of scores in the case and the right represents the control. High risk cells are expressed by the black shadow if the ratio of the number of cases to the number of controls exceeds the preset value , as low risk cells by light shadow if not more than the threshold, and empty cells with no shadow which means no cases and controls. The multifactor cells labeled as “high risk” or “low risk” are then used to assess the classification and predication accuracy, thus identifying the best model in the subsequent steps (drink 1: now; drink 2: ever; drink 3: never; smoke 1: now; smoke 2: ever; smoke 3: never).