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Cost-effectiveness of diagnostic tests for threatened preterm labor in singleton pregnancy in France

Abstract : Background: Previous studies have showed that the early diagnosis of threatened preterm labor decreases neonatal morbidity and mortality, avoids maternal morbidity induced by antepartum bed rest and unnecessary treatment, and reduces costs. Although there are many diagnostic tests, none is clearly recommended by international guidelines. The aim of our study was to compare seven diagnostic methods in terms of effectiveness and cost using a decision analysis model in singleton pregnancy presenting threatened preterm labor, between 24 and 34 weeks of gestation. Methods: Seven diagnostic strategies based on individual or combined use of the following tests: cervical length, cervical fibronectin test, cervical interleukin test and protein in maternal serum, were compared using a decision analysis model. Effectiveness was expressed in terms of serious adverse neonatal events avoided (neonatal morbidity and mortality) at the hospital discharge. The economic analysis was performed from the health care system perspective. Deterministic and probabilistic analyses were performed to test the robustness of the model. Results: At 24-34 weeks of gestation, the association of cervical length and qualitative fibronectin was the most efficient strategy dominating all alternatives, reducing the perinatal death or severe neonatal morbidity rate up to 15% and the costs up to 31% according to the gestational age. This result was confirmed by the deterministic sensitivity analyses. The probabilistic analysis showed that the association of cervical length and qualitative fibronectin dominated cervical length < 15 mm in more than 90% of the simulations. The comparison with the other tests revealed more uncertainty. Conclusions: A test using cervical length and qualitative fetal fibronectin appears to be the best diagnostic strategy. Decisions regarding its generalization and funding in France in this population of women should take into account the high, lifetime costs induced by prematurity.
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Soumis le : mardi 28 août 2018 - 15:14:36
Dernière modification le : mardi 18 octobre 2022 - 04:23:15
Archivage à long terme le : : jeudi 29 novembre 2018 - 16:41:26


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Thomas Desplanches, Catherine Lejeune, Jonathan Cottenet, Paul Sagot, Catherine Quantin. Cost-effectiveness of diagnostic tests for threatened preterm labor in singleton pregnancy in France. Cost Effectiveness and Resource Allocation, 2018, 16, pp.21. ⟨10.1186/s12962-018-0106-y⟩. ⟨hal-01859763⟩



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