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  • The high risk criteria of a clinical prediction model were specific but not sensitive for predicting ectopic pregnancy

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Clinical prediction guide
The high risk criteria of a clinical prediction model were specific but not sensitive for predicting ectopic pregnancy

https://doi.org/10.1136/ebm.5.3.96

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    (1999) Ann Emerg Med 34, 589. Buckley RG, King KJ, Disney JD, et al.. History and physical examination to estimate the risk of ectopic pregnancy: validation of a clinical prediction model.. Nov;. :. –94.
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 QUESTION: In women with abdominal pain or vaginal bleeding in the first trimester of pregnancy, how accurate is a clinical prediction model for predicting ectopic pregnancy?

    Design

    2 cohort studies: 1 for derivation and 1 for validation of the clinical prediction model results.

    Setting

    The emergency department of a tertiary care, military, teaching hospital in San Diego, California, USA.

    Patients

    Women who were haemodynamically stable and had abdominal pain or vaginal bleeding in the first trimester of pregnancy. Exclusion criteria were previous documentation of an intrauterine pregnancy (IUP) on pelvic ultrasonography, enrolment in the prospective clinical data registry on a previous visit to the emergency department, or estimated gestational age and corresponding uterine size of ≥13 weeks. 486 women (mean …

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