Table 2.
Parameters | Strain ratio | US findings | ||||||
---|---|---|---|---|---|---|---|---|
|
|
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Observer 1 | P | Observer 2 | P | No. of follicles | P | Ovarian volume (cm3) | P | |
AUC | 0.888 | <0.001 | 0.939 | <0.001 | 0.959 | <0.001 | 0.962 | <0.001 |
Optimal cutoff | >3.8 | >3.8 | ≥12 | ≥10 | ||||
Sensitivity (%) | 87.50 | 89.5 | 85.4 | 100 | ||||
Specificity (%) | 85.42 | 83.3 | 89.5 | 70.8 | ||||
PPV (%) | 85.7 | 84.3 | 89.1 | 77.4 | ||||
NPV (%) | 87.2 | 88.8 | 86 | 100 |
US, ultrasonography; PCOS, polycystic ovary syndrome; AUC, area under the curve; PPV, positive predictive value; NPV, negative predictive value.