Table 4: The observed outcome of sensitivity, specificity, PPV, and NPV.

SignsSensitivitySpecificityPPVNPV
(95% CI)(95% CI)(95% CI)(95% CI)

Ovarian edema0.40   
(0.14 - 0.73)
1.00   
(0.84 - 1.00)
1.00   
(0.40 - 1.00)
0.82   
(0.64 - 0.92)
Ovarian enlargement0.80   
(0.44 - 0.96)
0.63   
(0.42 - 0.80)
0.44   
(0.22 - 0.69)
0.89   
(0.65 - 0.98)
Ovarian cyst or mass0.60   
(0.27 - 0.86)
0.59   
(0.39 - 0.77)
0.35   
(0.15 - 0.61)
0.80   
(0.56 - 0.93)
Abnormal ovarian location0.30   
(0.08 - 0.65)
1.00   
(0.84 - 1.00)
1.00   
(0.40 - 1.00)
0.79   
(0.61 - 0.91)
Abnormal ovarian blood flow0.00   
(0.00 - 0.34)
1.00   
(0.84 - 1.00)
NA0.73   
(0.56 - 0.86)
Free fluid in the pouch of Douglas0.20   
(0.03 - 0.56)
0.78   
(0.57 - 0.91)
0.25   
(0.04 - 0.64)
0.72   
(0.52 - 0.86)
Presence of fluid around the ovary0.00   
(0.00 - 0.34)
1.00   
(0.84 - 1.00)
NA0.73   
(0.56 - 0.86)
Distended fallopian tube0.00   
(0.00 - 0.34)
1.00   
(0.84 - 1.00)
NA0.73   
(0.56 - 0.86)
Sites of bleeding within the affected ovary0.00   
(0.00 - 0.34)
1.00   
(0.84 - 1.00)
NA0.73   
(0.56 - 0.86)