Table 3 |
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|
Diagnostic value of the variables found to be predictive of haemoperitoneum ≥ 300 ml at univariate analysis at their best cut-off point |
||||||
| Variable |
Patients with the characteristic |
Se(%) |
Sp(%) |
LR + |
LR - |
p-value* |
|
|
||||||
| Vaginal bleeding absent |
26 |
37.5 |
80.5 |
1.92 |
0.78 |
0.063 |
| Any pelvic pain |
82 |
100.0 |
17.1 |
1.21 |
0.00 |
0.003 |
| Moderate to severe pelvic pain |
65 |
91.5 |
48.8 |
1.8 |
0.2 |
<0.001 |
| Systolic blood pressure < 100 mm Hg |
12 |
20.8 |
95.1 |
4.27 |
0.83 |
0.0215 |
| Hb < 10 g/dl |
15 |
29.2 |
97.6 |
11.9 |
0.73 |
0.001 |
| Serum hCG < 5000 IU/L |
66 |
83,3 |
36,6 |
1,31 |
0,46 |
0,032 |
| Any fluid in the pouch of Douglas at TVUS |
74 |
91.7 |
26.8 |
1.25 |
0.31 |
0.020 |
| Fluid > uterine isthmus at TVUS |
52 |
81.3 |
68.3 |
2.56 |
0.27 |
<0.001 |
| Fluid > uterine fundus at TVUS |
18 |
31.1 |
92.7 |
4.27 |
0.74 |
0.005 |
| Fluid arround the ovary at TVUS |
9 |
16.7 |
97.6 |
6.83 |
0.85 |
0.027 |
| Fluid > uterine fundus OR fluid arround the ovary at TVUS |
24 |
43.8 |
92.7 |
5.98 |
0.61 |
<0.001 |
| Fluid height ≥ 11 mm at TVUS |
65 |
85.1 |
39.0 |
1.40 |
0.38 |
0.010 |
| Fluid Width ≥ 20 mm at TVUS |
66 |
89.4 |
41.5 |
1.53 |
0.26 |
0.001 |
| Clots present at TVUS |
47 |
72.9 |
70.7 |
2.5 |
0.4 |
<0.001 |
|
|
||||||
|
Hb = Serum haemoglobin concentration. LR + = positive likelihood ratio. LR - = negative likelihood ratio. Se = sensitivity. Sp = specificity. TVUS = transvaginal ultrasound examination. * Chi square for heterogeneity. |
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|
Fauconnier et al. World Journal of Emergency Surgery 2007 2:23 doi:10.1186/1749-7922-2-23 |
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