scholarly journals The association between parity and spontaneous preterm birth: a population based study

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Bouchra Koullali ◽  
Maud D. van Zijl ◽  
Brenda M. Kazemier ◽  
Martijn A. Oudijk ◽  
Ben W. J. Mol ◽  
...  
Keyword(s):  
Preterm Birth ◽  
Population Based ◽  
Spontaneous Preterm Birth ◽  
Population Based Study

Changes in incidence of iatrogenic and spontaneous preterm births over time: a population-based study

2016 ◽  
Vol 44 (5) ◽  
Author(s):  
Miha Lucovnik ◽  
Andreja Trojner Bregar ◽  
Lili Steblovnik ◽  
Ivan Verdenik ◽  
Ksenija Gersak ◽  
...  
Keyword(s):  
Preterm Birth ◽  
Birth Rate ◽  
Preterm Births ◽  
Population Based ◽  
Spontaneous Preterm Birth ◽  
Birth Rates ◽  
Population Based Study ◽  
Preterm Birth Rate ◽  
Iatrogenic Preterm Delivery ◽  
Over Time

AbstractTo examine the proportion of iatrogenic births among all preterm births over a 26-year period.A registry-based survey of preterm deliveries between 1987 and 2012 analyzed by the onset of labor: spontaneous with intact membranes, preterm premature rupture of membranes (PPROM) or iatrogenic. Stratification into categories by gestation (22 weeks to 27 weeks and 6 days, 28 weeks to 31 weeks and 6 days, 32 weeks to 33 weeks and 6 days, 34 weeks to 36 weeks and 6 days) was performed. Preterm birth rates were analyzed using the Mantel-Haenszel linear-by-linear associationOverall preterm birth rate was 5.9% (31328 deliveries) including 2358 (0.4%) before 28 completed weeks, 3388 (0.6%) between 28 weeks and 31 weeks 6 days, 3970 (0.8%) between 32 weeks and 33 weeks and 6 days, and 21611 (4.1%) between 34 weeks and 36 weeks and 6 days There was an increase in overall preterm birth rate (P<0.001). The rate of iatrogenic preterm births and PPROM increased over time (P<0.001 and P<0.014, respectively). Rates of spontaneous preterm birth decreased (P<0.001). After accounting for potential confounders, year of birth remained an independent risk factor for iatrogenic preterm delivery in all four gestational age categories (P<0.001).The incidence of iatrogenic preterm birth is increasing with a concomitant decrease in the incidence of spontaneous preterm birth. Attempts to analyze, interpret and decrease preterm birth rates should consider spontaneous and iatrogenic preterm births separately.

scholarly journals Velamentous or marginal cord insertion and the risk of spontaneous preterm birth, prelabor rupture of the membranes, and anomalous cord length, a population-based study

2016 ◽  
Vol 96 (1) ◽  
pp. 78-85 ◽  
Author(s):  
Cathrine Ebbing ◽  
Synnøve L. Johnsen ◽  
Susanne Albrechtsen ◽  
Ingvild D. Sunde ◽  
Christina Vekseth ◽  
...  
Keyword(s):  
Preterm Birth ◽  
Population Based ◽  
Spontaneous Preterm Birth ◽  
Population Based Study ◽  
Cord Length

Prenatal care and preterm birth in the Western Brazilian Amazon: A population-based study

2021 ◽  
pp. 1-12
Author(s):  
Clariana V. Ramos de Oliveira ◽  
Paulo A. R. Neves ◽  
Barbara H. Lourenço ◽  
Rodrigo Medeiros de Souza ◽  
Maíra B. Malta ◽  
...  
Keyword(s):  
Preterm Birth ◽  
Prenatal Care ◽  
Brazilian Amazon ◽  
Population Based ◽  
Population Based Study

scholarly journals Country of first birth and neonatal outcomes in migrant and Norwegian-born parous women in Norway: a population-based study

2019 ◽  
Author(s):  
Eline Skirnisdottir Vik ◽  
Roy Miodini Nilsen ◽  
Vigdis Aasheim ◽  
Rhonda Small ◽  
Dag Moster ◽  
...  
Keyword(s):  
Preterm Birth ◽  
Population Based ◽  
Neonatal Outcomes ◽  
Migrant Women ◽  
First Birth ◽  
Population Based Study ◽  
Very Preterm ◽  
Very Preterm Birth ◽  
Adverse Neonatal Outcomes ◽  
Moderately Preterm

Abstract Background: This study compares subsequent birth outcomes in migrant women who had already had a child before arriving in Norway with those in migrant women whose first birth occurred in Norway. The aim of this study was to investigate the associations between country of first birth and adverse neonatal outcomes (very preterm birth, moderately preterm birth, post-term birth, small for gestational age, large for gestational age, low Apgar score, stillbirth and neonatal death) in parous migrant and Norwegian-born women. Methods: National population-based study including second and subsequent singleton births in Norway from 1990-2016. Data were retrieved from the Medical Birth Registry of Norway and Statistics Norway. Neonatal outcomes were compared between births to: 1) migrant women with a first birth before immigration to Norway (n=30,062) versus those with a first birth after immigration (n=66,006), and 2) Norwegian-born women with a first birth outside Norway (n=6,205) versus those with a first birth in Norway (n=514,799). Associations were estimated as crude and adjusted odds ratios (aORs) with 95% confidence intervals (CIs) using multiple logistic regression. Results: Migrant women with a first birth before immigrating to Norway had increased odds of adverse outcomes in subsequent births relative to those with a first birth after immigration: very preterm birth (22-31 gestational weeks (gwks); aOR=1.27; CI 1.09-1.48), moderately preterm birth (32-36 gwks; aOR=1.10; CI 1.02-1.18), post-term birth (≥42 gwks; aOR=1.19; CI 1.11-1.27), low Apgar score (<7 at 5 minutes; aOR=1.27; CI 1.16-1.39) and stillbirth (aOR=1.29; CI 1.05-1.58). Similar results were found in the sample of births to Norwegian-born women. Conclusions: The increased odds of adverse neonatal outcomes for migrant and Norwegian-born women who had their first births outside Norway should serve as a reminder of the importance of taking a careful obstetric history in these parous women to ensure appropriate care for their subsequent pregnancies and births in Norway. Keywords: immigration, parous women, neonatal outcomes, obstetric history, predictor

Eligibility, Utilization, and Effectiveness of 17-Alpha Hydroxyprogesterone Caproate (17OHPC) in a Statewide Population-Based Cohort of Medicaid Enrollees

2021 ◽  
Author(s):  
Xi Wang ◽  
Stephanie M. Garcia ◽  
Katherine S. Kellom ◽  
Rupsa C. Boelig ◽  
Meredith Matone
Keyword(s):  
Preterm Birth ◽  
Neonatal Intensive Care ◽  
Population Based ◽  
Primary Objective ◽  
Birth Certificates ◽  
Spontaneous Preterm Birth ◽  
Initiation Rate ◽  
Live Births ◽  
Hydroxyprogesterone Caproate ◽  
Comparison Groups

Objectives The primary objective was to estimate the initiation and adherence rates of 17 α-hydroxyprogesterone caproate (17OHPC) among eligible mothers in a statewide population-based cohort of Medicaid enrollees. The secondary objectives were to (1) determine the association of maternal sociodemographic and clinical characteristics with 17OHPC utilization and (2) assess the real-world effectiveness of 17OHPC on recurrent preterm birth prevention and admission to neonatal intensive care unit (NICU). Study Design This is a retrospective cohort study using a linked, longitudinal administrative dataset of birth certificates and medical assistance claims. Medicaid-enrolled mothers in Pennsylvania were included in this study if they had at least one singleton live birth from 2014 to 2016 following at least one spontaneous preterm birth. Maternal Medicaid claims were used to ascertain the use of 17OHPC from various manufacturers, including compounded formulations. Propensity score matching was used to create a covariate balance between 17OHPC treatment and comparison groups. Results We identified 4,781 Medicaid-covered 17OHPC-eligible pregnancies from 2014 to 2016 in Pennsylvania, 3.4% of all Medicaid-covered singleton live births. The population-based initiation rate was 28.5% among eligible pregnancies. Among initiators, 50% received ≥16 doses as recommended, while 10% received a single dose only. The severity of previous spontaneous preterm birth was the strongest predictor for the initiation and adherence of 17OHPC. In the matched treatment (n = 1,210) and comparison groups (n = 1,210), we found no evidence of 17OHPC effectiveness. The risks of recurrent preterm birth (relative risk [RR] 1.10, 95% confidence interval [CI] 0.97–1.24) and births admitted to NICU (RR 1.00, 95% CI 0.84–1.18) were similar in treated and comparison mothers. Conclusion The 17OHPC-eligible population represented 3.4% of singleton live births. Less than one-third of eligible mothers initiated treatment. Among initiators, 50% were treatment adherent. We found no difference in the risk of recurrent preterm birth or admission to NICU between treatment and comparison groups. Key Points

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