Risk assessment of subclinical mastitis in Holstein cows in Jiangsu Province of China.

Among them, all 6 factors of the constant term, farm size, management, parity, calving season, lactation stage, and PSCS reached the highly significant p value, and the equation is as follows: Logist ( P ) = − 6.848 − 0.201 × X 1 + 0.411 × X 2 + 0.293 × X 3 – 0.045 × X 4 + 0.101 × X 5 + 0.451 × X 6 As shown in Table 5 , the sensitivity and specificity of the model are 13.6 and 98.3%, the accuracy and balanced accuracy are 87.5 and 56.0%.

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