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Table 11 Determination of optimum cut-off based on ROC curve analysis

From: Validation of the UNESP-Botucatu unidimensional composite pain scale for assessing postoperative pain in cattle

Cut-off point

Sensitivity (95% CI)

Specificity (95% CI)

≥ 0

100.00 (98.3 - 100.0)

0.00 (0.0 - 0.5)

> 0

100.00 (98.3 - 100.0)

51.14 (47.5 - 54.8)

> 1

99.54 (97.5 - 100.0)

65.55 (62.0 - 69.0)

> 2

98.16 (95.3 - 99.5)

75.24 (72.0 - 78.3)

> 3

96.77 (93.5 - 98.7)

81.29 (78.3 - 84.0)

> 4

95.85 (92.3 - 98.1)

87.35 (84.7 - 89.7)

> 5

89.86 (85.1 - 93.5)

91.66 (89.4 -- 93.5)

> 6

76.04 (69.8 - 81.6)

95.56 (93.8 - 96.9)

> 7

61.29 (54.5 - 67.8)

97.04 (95.6 - 98.1)

> 8

35.48 (29.1 - 42.2)

99.06 (98.1 - 99.6)

> 9

17.51 (12.7 - 23.2)

99.87 (99.3 - 100.0)

> 10

0.00 (0.0 - 1.7)

100.00 (99.5 - 100.0)

  1. The determination takes into consideration the blinded observers' assessments regarding the need or lack of need for analgesia.