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Cuadernos Hospital de Clínicas
versão impressa ISSN 1562-6776
Resumo
VALLE-ALARCON, María E. Assessment of cervicometry and Bishop score for the diagnosis of threatened preterm labor. High-risk obstetric service. Hospital de la Mujer, january-march 2019. Cuad. - Hosp. Clín. [online]. 2024, vol.65, n.1, pp.12-17. ISSN 1562-6776. https://doi.org/10.53287/zipc4953re26x.
In this study, the researchers aimed to determine the validity and reliability of cervicometry and the Bishop score for diagnosing threatened preterm labor in the high-risk obstetric service at the Hospital de la Mujer in La Paz during the period from January to March 2019. The study included pregnant women, and the results showed varying sensitivities and specificities for cervicometry and the Bishop score. The concordance between these two methods was found to be minimal.
OBJECTIVE:
To determine the validity and reliability of cervicometry and the Bishop score to diagnose threatened preterm labor.
MATERIAL AND METHODS:
Retrospective, quantitative, and analytical study to validate a diagnostic test.
SAMPLE:
The study included 185 pregnant women with a single fetus, at gestational ages between 22 and 37 weeks, who underwent cervicometry assessment during the period from January to March 2019.
RESULTS:
The frequency of preterm labor in pregnant women diagnosed with threatened preterm labor was 27%, with higher prevalence in women with 4 or more previous deliveries. Cervicometry evaluation to diagnose threatened preterm labor showed a sensitivity of 66.0%, specificity of 94.8%, positive predictive value (+) of 82.5%, and negative predictive value (-) of 88.3%. Bishop score evaluation had a sensitivity of 4.0%, a specificity of 99.3%, a positive predictive value (+) of 66.7%, and a negative predictive value (-) of 73.6%. The concordance index between cervicometry and the Bishop score was minimal (0.017). The area under the ROC curve for cervicometry in relation to the final diagnosis of preterm labor was 0.905, with an optimal cutoff point of 30.5 mm, corresponding to a sensitivity of 90.4% and specificity of 78.0%.
CONCLUSION:
The concordance between cervicometry and the Bishop score to diagnose threatened preterm labor is minimal.
Palavras-chave : Cervicometry assessment; Bishop score; preterm labor.
