Sudden/nocturnal onset of acute abdominal pain, lasting less than a day and accompanied by vomiting: a tell-tale sign of ovarian torsion

Table 3 The sensitivity and specificity of parameters that were found to differ statistically between women with (n = 36) or without (n = 42) operative diagnosis of ovarian torsion

Parameter	Sensitivity	95% CI	Specificity	95% CI
Pain that awoke from sleep/sudden onset	0.77	0.46–0.94	0.6	0.47–0.71	0.003
Duration of pain <1 day	0.61	0.43–0.76	0.78	0.36–0.61	0.0004
Vomiting	0.75	0.53–0.89	0.67	0.52–0.78	0.001
Infertility treatment	0.6	0.36–0.8	0.58	0.45–0.71	0.15
Tender adnexa	0.4	0.27–0.54	0.35	0.16–0.59	0.06
Previous event of pain	0.4	0.23–0.59	0.5	0.35–0.65	0.39
Guarding	0.18	0.32–0.52	0.48	0.36–0.61	0.04