Relationship between preterm labor and the length of the cervical canal - Payesh (Health Monitor)
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Ghasemi A., Alimohammadian Sh., Davati A.. Relationship between preterm labor and the length of the cervical canal. Payesh 2006; 5 (3)
URL: http://payeshjournal.ir/article-1-736-en.html
Abstract:   (9395 Views)
Objective (s): To determine the relationship between cervical length at 16 and 24 weeks of gestation and the occurrence of preterm labor.
Methods: A prospective cohort study was performed on 153 pregnant women in two groups (75 and 78 person) after measuring cervical length with vaginal sonography. We calculated the incidence preterm labor m both groups, plus the sensitivity, specificity, positive and negative predictive values for cervical length. Results: The incidence  of preterm labor  was 17.3% ( 13/75) in the group with cervix length  of less  than  35 mm and 6/4% (5/78) in the group with cervical length ;::JS  mm. The relative Risk was 2.7 (95% CI=l.3-4.5). Sensitivity,  specificity,  positive  and  negative  predictive  value  of cervical length  on preterm delivery  with  a cut-off point of 35 mm were 72%, 54%, 17% and 93% respectively.
In the multivariate analysis of job, education, parity, gravidity and cervical length only cervical length was significantly related to preterm delivery (P<0.01). The cervical length also had a significant correlation with preterm delivery (P<0.001, r =0.61).
Conclusion: Cervical length between 16 and 24 weeks of gestation is a strong-predictor of preterm labor.
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type of study: Descriptive |
Accepted: 2018/11/28 | Published: 2006/07/15

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