Body mass index is linked to cervical length and duration of pregnancy: An observational study in low risk pregnancy

Kandil, Mohamed; Sanad, Zakaria F; Sayyed, Tarek; Ellakwa, Hamid

doi:10.1080/01443615.2016.1205555

Cited by 7 publications

(7 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Interestingly, maternal BMI was not correlated with cervical length in mid gestation too. This finding is in contrast to some previous studies which reached a statistically significant positive correlation (27)(28)(29)(30)(31). Although this remains unexplained as similar or even greater sample size was studied here but some differences in study design, population study, and ethnical or geographical heterogeneity may justify this.…”

Section: Discussioncontrasting

confidence: 99%

Could Maternal Vitamin D Concentration Affect Cervical Length in Mid-Pregnancy? A Report from an Iranian Tertiary Center

Shabani¹,

Abiri²,

Ghalandarpoor-Attar³

et al. 2022

JFRH

View full text Add to dashboard Cite

Objective: This descriptive-analytic cross-sectional study aimed to figure out whether maternal serum vitamin D concentration correlates with cervical length measurement in mid-gestation or not. Materials and methods: During Jun-Jan 2021, 213 pregnant women at 18-22 weeks of gestation were investigated. First, demographic features were obtained then, maternal serum vitamin D concentration was measured by enzyme-linked immunoassay and cervical length was measured via transvaginal sonography according to fetal maternal foundation guideline and appropriate statistical test was used to analyze the correlation between maternal vitamin D level and cervical length in mid-pregnancy. Results: It was shown that 29.6% and 25.4% of participants had vitamin D deficiency and insufficiency, respectively. Spearman’s test found no significant correlation between maternal vitamin D level and cervical length in mid-pregnancy. Moreover, cervical length and maternal vitamin D level had no association with maternal BMI. Conclusion: Although maternal vitamin D level and its sufficiency status was not associated with cervical length in mid- pregnancy, as a trend toward decreased maternal serum vitamin D level by advancing gestational age was observed. It may be concluded that it is prolonged vitamin D deficiency during gestation that may lead to cervical length shortening and subsequent preterm delivery later in gestation.

show abstract

Section: Discussioncontrasting

confidence: 99%

Could Maternal Vitamin D Concentration Affect Cervical Length in Mid-Pregnancy? A Report from an Iranian Tertiary Center

Shabani¹,

Abiri²,

Ghalandarpoor-Attar³

et al. 2022

JFRH

View full text Add to dashboard Cite

show abstract

“…We as well found that low BMI was associated with CL� 25 mm. This result confirms the findings from other studies showing the same relationship between shorter CL and lower BMI [13,18,33]. There appears to be a correlation between low pre-pregnancy BMI and low weight gain during pregnancy with spontaneous preterm birth [34,35].…”

Section: Plos Onesupporting

confidence: 91%

“…A systematic review showed that, compared to normal weight women, pre-obese women and those with grade I obesity had a 15% reduction in their risk of spontaneous PTB and the prevalence of short cervix was significantly lower in obese compared to normal or underweight women [34]. By contrast, other studies showed relationships between obesity and prematurity [33][34][35][36][37][38], mostly related to therapeutic PTB [39]. A theory to explain this cervical behavior on pregnancies with low BMI is related to acquired collagen deficiency.…”

Section: Plos Onementioning

confidence: 99%

Cervical length distribution among Brazilian pregnant population and risk factors for short cervix: A multicenter cross-sectional study

Marquart

Silva²,

Mol³

et al. 2022

PLoS ONE

View full text Add to dashboard Cite

Objective Since there are populational differences and risk factors that influence the cervical length, the aim of the study was to construct a populational curve with measurements of the uterine cervix of pregnant women in the second trimester of pregnancy and to evaluate which variables were related to cervical length (CL) ≤25 mm. Materials and methods This was a multicenter cross-sectional study performed at 17 hospitals in several regions of Brazil. From 2015 to 2019, transvaginal ultrasound scan was performed in women with singleton pregnancies at 18 0/7 to 22 6/7 weeks of gestation to measure the CL. We analyzed CL regarding its distribution and the risk factors for CL ≤25 mm using logistic regression. Results The percentage of CL ≤ 25mm was 6.67%. Shorter cervices, when measured using both straight and curve techniques, showed similar results: range 21.0–25.0 mm in straight versus 22.6–26.0 mm in curve measurement for the 5th percentile. However, the difference between the two techniques became more pronounced after the 75th percentile (range 41.0–42.0 mm straight x 43.6–45.0 mm in curve measurement). The risk factors identified for short cervix were low body mass index (BMI) (OR: 1.81 CI: 1.16–2.82), higher education (OR: 1.39 CI: 1.10–1.75) and personal history ([one prior miscarriage OR: 1.41 CI: 1.11–1.78 and ≥2 prior miscarriages OR: 1.67 CI: 1.24–2.25], preterm birth [OR: 1.70 CI: 1.12–2.59], previous low birth weight <2500 g [OR: 1.70 CI: 1.15–2.50], cervical surgery [OR: 4.33 CI: 2.58–7.27]). By contrast, obesity (OR: 0.64 CI: 0.51–0.82), living with a partner (OR: 0.76 CI: 0.61–0.95) and previous pregnancy (OR: 0.46 CI: 0.37–0.57) decreased the risk of short cervix. Conclusions The CL distribution showed a relatively low percentage of cervix ≤25 mm. There may be populational differences in the CL distribution and this as well as the risk factors for short CL need to be considered when adopting a screening strategy for short cervix.

show abstract

“…33 Kandil et al (2017) and Venkatesh and Manuck (2020) found a significant association between maternal BMI and second-trimester CL and concluded that overweight and obese women had longer CL compared to normal-weight women . 34,35 This difference in the mean CL in different populations can be attributed to racial differences and different sample sizes. Recent studies concluded that obese women (BMI > 30 kg/m 2 ) had longer CL and a lower risk of PTD .…”

Section: Pretermmentioning

confidence: 99%

Maternal BMI, 25-Hydroxyvitamin D serum level and Cervical Length Measurements: Markers for Preterm Delivery

Salem

ElTemamy²,

Ali

et al. 2021

Al-Azhar International Medical Journal

View full text Add to dashboard Cite

Background: Preterm delivery is the delivery between 20th -37th weeks of gestation. Aim of the work: to study the maternal BMI, 25-Hydroxyvitamin D (25(OH)D) serum level, and uterine cervical length (CL) as predicting factors for PTD. Patients and methods: A prospective study included 188 pregnant women recruited during 20th -24th weeks of gestation. The maternal BMI was calculated, the serum level of 25(OH)D was measured, and the uterine CL was measured via transabdominal and transvaginal ultrasound. All women followed until delivery time and then were divided into 2 groups; group1 (n=54) women who delivered preterm, and group2 (n=134) women who delivered at term. Results: BMI results showed statistical significance between women who delivered preterm and those who delivered at term (29.7±1.7 vs. 23.6±2.2 kg/m2, P<0.001). Serum 25(OH)D showed no significant difference between the studied groups. CL was significantly shorter in women who delivered preterm than other group (32.39±5.93 vs. 44.42±4.17 mm, P<0.001). At 25 mm as a cut-off value for CL, the sensitivity, specificity, PPV, and NPV were 90.7%, 78.4%, 62.8%, and 95.5%, respectively. Women with BMI >25kg/m2 had significantly longer cervix than those who had BMI <25kg/m2. Regarding the effect of CL on the mode of delivery, 65.4% of women with CL <25 mm delivered vaginally. Conclusion: Maternal BMI had a significant relation with PTD. Measuring the CL during 20th -24th weeks helps predict preterm delivery and the mood of delivery. There is an association between BMI and cervical length.

show abstract

Body mass index is linked to cervical length and duration of pregnancy: An observational study in low risk pregnancy

Cited by 7 publications

References 20 publications

Could Maternal Vitamin D Concentration Affect Cervical Length in Mid-Pregnancy? A Report from an Iranian Tertiary Center

Could Maternal Vitamin D Concentration Affect Cervical Length in Mid-Pregnancy? A Report from an Iranian Tertiary Center

Cervical length distribution among Brazilian pregnant population and risk factors for short cervix: A multicenter cross-sectional study

Maternal BMI, 25-Hydroxyvitamin D serum level and Cervical Length Measurements: Markers for Preterm Delivery

Contact Info

Product

Resources

About