Mid-Pregnancy Cervical Length and Preterm Birth in Brazilian Twin Gestations

A prospective cohort study of 253 pregnant women with twins in Brazil, conducted between July 2015 and March 2019. The data includes cervical length measurements from transvaginal ultrasound and associated preterm birth outcomes. The study was performed at 17 outpatient antenatal facilities as part of the P5 trial screening phase.

Use Cases

• Developing predictive models for spontaneous preterm birth based on mid-trimester cervical length measurements.
• Analyzing the association between cervical length percentiles and preterm birth rates in twin gestations.
• Evaluating the performance of different cervical length cutoff points for risk stratification using ROC curve analysis.
• Studying survival curves for time-to-birth outcomes based on cervical length thresholds.

Strengths

• Includes data from 253 pregnant women with twins, providing a specific cohort size.
• Reports specific statistical measures: mean cervical length of 33.7 mm, median of 35.5 mm, and a 10th percentile of 17.8 mm.
• Contains detailed outcome rates: 73.9% preterm birth rate, with 33.6% spontaneous preterm birth <37 weeks and 15% <34 weeks.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the Brazilian study population.

Provenance

Source

paperswithcode

Collection Method

Prospective cohort study using transvaginal ultrasound measurements.

Time Range

July 2015 to March 2019

Geography

Brazil