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. 2020 Oct 29;53(4):690–700. doi: 10.1111/evj.13345

Table 5.

The odds ratio (OR), sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) for the P2, P3 and P4 variants in PSSM2/MFM horses by breed. P3a and P3b were in complete linkage disequilibrium

Variant OR Sensitivity Specificity PPV NPV
CI CI CI CI CI
PSSM2/MFM‐WB P2 2.07 0.82‐5.12 0.27 0.18‐0.38 0.85 0.73‐0.92 0.69 0.50‐0.84 0.48 0.38‐0.58
P3 1.31 0.43‐3.75 0.12 0.06‐0.23 0.91 0.80‐0.96 0.62 0.36‐0.82 0.45 0.36‐0.54
P4 1.35 0.56‐3.36 0.24 0.15‐0.34 0.82 0.69‐0.90 0.62 0.43‐0.78 0.46 0.36‐0.56
PSSM2/MFM‐AR P2 2.00 0.60‐7.05 0.33 0.19‐0.51 0.80 0.63‐0.90 0.63 0.39‐0.82 0.55 0.40‐0.68
P3 1.00 0.05‐19.6 0.03 0.002‐0.17 0.97 0.83‐0.99 0.50 0.03‐0.98 0.50 0.38‐0.63
P4 1.62 0.45‐5.56 0.20 0.09‐0.37 0.87 0.70‐0.95 0.60 0.31‐0.83 0.52 0.39‐0.65

None of the calculated values reached statistical significance (P < .05).

Abbreviations: AR, Arabian; MFM, Myofibrillar Myopathy; NPV, negative predictive value; PPV, positive predictive value; PSSM2, Polysaccharide storage myopathy type 2; WB, Warmblood.