ArticleAJOG global reports2025
A prospective study to correlate the cervical length by transvaginal ultrasound with preterm labor and perinatal outcomes.
Article in AJOG global reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Prediction of spontaneous preterm birth before 34 weeks in twin pregnancies using first-trimester cervical length.BMC pregnancy and childbirth · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThis study aimed to investigate the role of transvaginal ultrasound as a screening tool to assess cervical length and improve perinatal outcomes to prevent preterm labor through appropriate interventions.
objectiveThis study aimed to determine the mean cervical length at 11 to 14 and 18 to 22 weeks of gestation and to estimate the rate of cervical length shortening and its correlation with birth outcomes. STUDY
designThis prospective study was conducted at Lady Goschen Hospital and KMC Hospital, Attavar, both of which are affiliated with Manipal Academy of Higher Education. This study included 93 pregnant women who came for antenatal care at Lady Goschen Hospital and KMC Hospital, Attavar, from December 2022 to August 2024. All participants provided consent to participate in the study. The formula is a follows: n = Zα2 (Sn)(1-Sn) / L2 × p, where Zα = 1.96 at a 95% confidence level, Sn = sensitivity, l = allowable error, and p = negative prevalence (Sn = 75% [reference article], L = 20% [80% power], and p = 50% (assumption) with 95% confidence interval and 80% power with respect to reference [prediction of preterm labor by cervical length]). Convenient sampling was performed. Data analysis was performed using descriptive statistics. Changes in follow-up were estimated using analysis of variance and the Bonferroni
resultsCervical length measured using transvaginal ultrasound at 18 to 22 weeks of gestation was found to be more sensitive and to have better positive predictive value in predicting preterm labor than cervical length measured at 11 to 13 weeks of gestation. Cervical length between 18 and 22 weeks of gestation and the reduction of cervical length were found to be statistically significant in predicting preterm labor (
conclusionTransvaginal ultrasound is a noninvasive and comparatively affordable modality for identifying women at risk of preterm labor. In addition, this technology could help identify women at risk of preterm labor, thereby reducing morbidity and mortality.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.