Table 1 Y-Variables screened for feasibility of depicting the `outcome'
Code | `Subjective' ratings* made by farmers and veterinarians (basis of the final independent variable) | Mean | SD |
|---|---|---|---|
Questions asked to the veterinarians | |||
I_14 | How would you estimate the overall health status of the pig herd prior to the use of the PCV2 vaccine? | 3.71 | 1.01 |
I_15.1 | How would you estimate the overall health status of the pig herd after starting to use the PCV2 vaccine (i.e. today!)? | 2.08 | 0.64 |
I_17.1 | How would you rate the handling of the vaccine? | 1.96 | 0.40 |
I_18 | How is the following sentence matching your opinion: "My positive expectations of the vaccine's effect in the pig herd were fulfilled" | 1.95 | 0.65 |
Questions asked to the farmers | |||
II_22 | How would you estimate the compatibility of the PCV2 vaccine? | 1.88 | 0.62 |
II_23 | How would you estimate the overall health status of the pig herd prior to the use of the PCV2 vaccine? | 3.83 | 1.08 |
II_24.1 | How would you estimate the overall health status of the pig herd after starting to use the PCV2 vaccine (i.e. today!)? | 2.16 | 0.68 |
II_27 | How would you estimate the uniformity of growth in the nursery unit prior to the use of the PCV2 vaccine? | 3.14 | 0.86 |
II_28 | How would you estimate the uniformity of growth in the nursery unit after starting to use the PCV2 vaccine? | 2.22 | 0.47 |
II_29 | How would you estimate the uniformity of growth in the fattening unit prior to the use of the PCV2 vaccine? | 3.74 | 0.65 |
II_30 | How would you estimate the uniformity of growth in the fattening unit after starting to use the PCV2 vaccine? | 2.23 | 0.52 |
II_33.1 | How would you rate the handling of the vaccine? | 2.05 | 0.39 |
II_34.1 | How would you estimate the efficacy of the vaccine? | 1.97 | 0.73 |
II_35 | How is the following sentence matching your opinion: `My positive expectations of the vaccine's effect in the pig herd were fulfilled' | 2.01 | 0.90 |
Calculated variables based on answers provided by veterinarians and farmers | |||
D_1415 | [I_15.1]-[I_14] `Change in the overall health status due to the use of a PCV2 vaccine' (veterinarians' suggestion) | 1.63 | 0.95 |
D_2324 | [II_24]-[II_23] `Change in the overall health status due to the use of a PCV2 vaccine' (farmers' suggestion) | 1.65 | 1.06 |
D_2728 | [II_28]-[II_27] `Change in the uniformity of growth in the nursery unit due to the use of a PCV2 vaccine' (farmers' suggestion) | 0.92 | 0.92 |
D_2930 | [II_30]-[II_29] `Change in the uniformity of growth in the fattening unit due to the use of a PCV2 vaccine' (farmers' suggestion) | 1.51 | 0.83 |
D_3132 | `Change in the estimated mortality rate among fattening pigs due to the use of a PCV2 vaccine (farmers' suggestion) | NA | NA |