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. 2019 Sep-Oct;34(5):525–534. doi: 10.21470/1678-9741-2019-0064

Table 6.

Coordinates of the curve for ejection fraction (EF) values - postoperative sinus rhythm.

Coordinates of the curve:
Test result variable(s): %EF
Positive if greater than or equal toa Sensitivity 1 - Specificity
48.5000 (cutoff value) 0.787 0.506

The test result variable(s)=EF has at least one tie between the positive actual state group and the negative actual state group.

a

The smallest cutoff value is the minimum observed test value minus 1, and the largest cutoff value is the maximum observed test value plus 1. All the other cutoff values are the averages of two consecutively ordered observed test values.