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- W2802734008 abstract "Objective Methotrexate is an alternative treatment for tubal pregnancy. However, despite initial treatment, ∼15% of women eventually require surgery. This study aimed to identify the risk factors for medical treatment failure in tubal pregnancy and apply them to a risk prediction model. Study design This single-center retrospective cohort study included 123 participants initially treated medically for tubal pregnancy between January 2006 and December 2015. Logistic regression analysis was used to construct a risk prediction model (visually presented as a nomogram) for medical treatment failure. Model performance was assessed using discrimination and calibration. The medical treatment failure rate was 36.6%. The prediction model integrated the presence of a gestational sac, ectopic mass size, and follow-up β-human chorionic gonadotropin levels above cut-off values on days 4 and 7. The model used the following cut-off values: increased β-human chorionic gonadotropin levels by 1028.6 mIU/mL, 1.0457-fold higher than baseline level on day 4; and increased β-human chorionic gonadotropin levels by 1233 mIU/mL, 1.3025-fold higher than baseline level on day 7. Results The corresponding areas under the receiver-operating characteristic curves were 0.8135 (95% confidence interval, 0.733-0.893) for the day 4 model and 0.8600 for the day 7 model (95% confidence interval, 0.788-0.932). Comparison of the day 4 and 7 models revealed no significant difference in their predictive abilities (P = 0.4318). Conclusions This model identified a substantial proportion of the participants who experienced medical treatment failure for tubal pregnancy. It was visualized as a nomogram, facilitating clinical application." @default.
- W2802734008 created "2018-05-17" @default.
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- W2802734008 date "2018-06-01" @default.
- W2802734008 modified "2023-10-18" @default.
- W2802734008 title "A risk prediction model for medical treatment failure in tubal pregnancy" @default.
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- W2802734008 doi "https://doi.org/10.1016/j.ejogrb.2018.04.020" @default.
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