Maternal and obstetrical factors associated with short cervical length at midtrimester in women with no history of preterm delivery

In pregnant women evaluated at 18/0 and 23/6 weeks + days of gestation without history of preterm delivery, a 16.7% detection rate for short cervix ≤15 mm can be achieved by risk factors BMI ≥30, and at least one previous miscarriage. Nevertheless, screening for short cervix by risk factors among lo...

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Published in:The journal of maternal-fetal & neonatal medicine 2023-12, Vol.36 (2), p.2228448-2228448
Main Authors: Soto-Torres, Eleazar E., Hernandez-Andrade, Edgar, Huntley, Erin S., Blackwell, Sean C.
Format: Article
Language:English
Subjects:
Abortion, Spontaneous
Cervix Uteri - diagnostic imaging
Female
Humans
Obesity
obstetric history
Pregnancy
Pregnancy Trimester, Second
Premature Birth - epidemiology
preterm delivery
prevention
Retrospective Studies
risk factors
screening
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Summary:In pregnant women evaluated at 18/0 and 23/6 weeks + days of gestation without history of preterm delivery, a 16.7% detection rate for short cervix ≤15 mm can be achieved by risk factors BMI ≥30, and at least one previous miscarriage. Nevertheless, screening for short cervix by risk factors among low risk women might not be an effective alternative to universal cervical length screening. To evaluate associations between maternal characteristics and a short cervix in patients without history of preterm delivery, and to determine if these characteristics can predict the presence of a short cervix. This is a retrospective cohort study that included 18,592 women with singleton pregnancies without history of previous preterm deliveries who underwent universal transvaginal cervical length (TVCL) screening between 18 + 0 and 23 + 6 weeks/days of gestation. A short cervix was defined as a cervical length (CL) ≤25 mm, ≤20 mm, and ≤15 mm. Associations between maternal age, weight, height, body mass index (BMI), previous term deliveries, and history of previous miscarriages, with a short cervix were evaluated using logistic regression models. The prevalence of a short cervix in our population was: CL ≤25 mm, 2.2% (n = 403); CL ≤20 mm, 1.2% (n = 224); and CL ≤15 mm, 0.9% (n = 161). Women with BMI >30 and/or previous abortions constituted 45.5% of the total population (8463/18,582). Significant associations with short cervix were observed for women with BMI ≥30, and for women with at least one previous abortion (p 
ISSN:1476-7058
1476-4954
DOI:10.1080/14767058.2023.2228448