3162 Colonization of Pregnant Women with Group B streptococcus in Latin America and Infant Outcomes

OBJECTIVES/SPECIFIC AIMS: The primary objective of this study is to determine the prevalence of maternal GBS colonization and demographic risk factors associated with maternal GBS colonization in Latin America. Secondary objectives include: To determine if there is an association between maternal colonization with GBS and stillbirth or preterm birth in Latin America. To determine the effect of cesarean section (CS) on the incidence of neonatal sepsis with GBS in mothers colonized with GBS. METHODS/STUDY POPULATION: Study Population: Pregnant women who received prenatal care at sites that utilize the Perinatal Information System (SIP) from 1989 through 2015, and were screened for GBS between 35 and 37 weeks of gestation. Maternal exclusion criteria included spontaneous abortion, stillbirth before 35 weeks, and lack of screening for GBS. Methods: Estimated prevalence (and 95% confidence interval) of maternal GBS colonization for the entire data set, by region, and by country. The prevalence data for each country further stratified by maternal age, ethnicity, education, civil status and habitation. Descriptive statistics calculated for each clinical prenatal and clinical perinatal health indicator as well as for each clinical history variable for GBS colonized and non-GBS colonized women. Odds ratios will be calculated for each demographic and clinical risk factor. Fisher’s exact tests will be used to test hypotheses about the relationship between maternal GBS colonization and specific perinatal outcomes such as stillbirth or preterm birth. We will use multiple logistic regression models to test the hypotheses about the relationships between demographic variables, maternal GBS colonization and perinatal outcomes. RESULTS/ANTICIPATED RESULTS: Preliminary results: 712,061 records included in database. 98,852 records with data for GBS screening. o90.6% White, 7.4% Mixed, 0.6% Black, 0.3% Native Indian, 0.1% Other. GBS prevalence among screened women, 17.5% There was a significant association between maternal GBS colonization and ethnicity (X2 (4, N=97006)=569.901, p<0.01) o Prevalence rates by ethnicity: 20.5% Black, 18.4% White, 15.2% Native Indian, 8.8% Mixed, 3.3% Other. There was a significant association between maternal GBS colonization and age (X2 (4, N=98655)=119.901, p<0.01) o Prevalence rates by age group:. Age ≤ 20 - 15.2%. Age 21-34 – 17.8%. Age ≥ 35 – 19.6% Anticipated results:. GBS positive mothers will have an increased burden of stillbirth and preterm birth compared to GBS negative mothers. Neonates born to GBS colonized mothers who deliver via cesarean section will have a decreased incidence of sepsis compared to neonates born to GBS colonized mothers who deliver vaginally DISCUSSION/SIGNIFICANCE OF IMPACT: There have been no comprehensive studies to date that use the CLAP data to characterize the epidemiology of maternal GBS colonization and GBS disease and the burden of neonatal GBS disease in Latin America. Taking advantage of this unique database, this is the first region-wide study using systematically collected data. Our preliminary analysis indicates that GBS colonization status among pregnant women in Latin America is 17.5%, which is greater than previously reported. While there is evidence that maternal carriage of GBS is associated with stillbirth, this will be the first study to quantify the burden of GBS-associated stillbirth in Latin America. Additionally, previous work has been inconclusive in regards to maternal colonization with GBS and its association with preterm birth. This will be the largest study to evaluate the association of maternal GBS carriage with preterm birth. Findings from this study have the potential to inform public health policy and interventions by identifying the prevalence and risk factors.

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Modifiable risk factors for spontaneous preterm birth in nulliparous women: a prospective study

Journal of Perinatal Medicine ◽

10.1515/jpm-2019-0362 ◽

2020 ◽

Vol 48 (2) ◽

pp. 96-101

Author(s):

Themistoklis Dagklis ◽

Ioannis Tsakiridis ◽

Apostolos Mamopoulos ◽

Theodore Dardavessis ◽

Apostolos Athanasiadis

Keyword(s):

Risk Factors ◽

Preterm Birth ◽

Pregnant Women ◽

Maternal Age ◽

Modifiable Risk Factors ◽

Spontaneous Preterm Birth ◽

Nulliparous Women ◽

Study Population ◽

A Prospective Study ◽

In Pregnancy

AbstractBackgroundSpontaneous preterm birth (sPTB) has a detrimental impact on perinatal outcome, as well as on the resources of health systems in high-income countries. Thus, the objective of the current study was to determine the incidence of modifiable risk factors in pregnancy and their impact on the rate of sPTB.MethodsAll nulliparous pregnant women, in singleton pregnancies, with free medical and obstetric history, were eligible to participate in this study. The primary outcome of interest was the incidence of specific modifiable risk factors for sPTB. The correlations between these risk factors and sPTB were also investigated.ResultsOverall, 2027 women were eligible for the study and agreed to participate. The incidence of sPTB was 4.9%; 25.5% (n = 518) of the participants were in extreme maternal age (<20 or >35 years), 34.5% (n = 701) had an abnormal body mass index (BMI) (<18.5 or ≥25 kg/m2), 4.4% (n = 89) reported use of assisted reproductive technology (ART) and 10.9% (n = 220) reported themselves as smokers in pregnancy. In the multivariate analysis, sPTB was significantly correlated with ART conception [odds ratio (OR): 2.494, 95% confidence interval (CI): 1.196–5.199].ConclusionApproximately one in 20 primiparous pregnant women in the study had a sPTB. The study population included a high percentage of women of advanced maternal age, with abnormal BMI and smokers, but these characteristics did not affect the incidence of sPTB. On the other hand, conception following ART increased two-fold the risk of sPTB.

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Clinical manifestations, risk factors, and maternal and perinatal outcomes of coronavirus disease 2019 in pregnancy: living systematic review and meta-analysis

BMJ ◽

10.1136/bmj.m3320 ◽

2020 ◽

pp. m3320 ◽

Cited By ~ 33

Author(s):

John Allotey ◽

Elena Stallings ◽

Mercedes Bonet ◽

Magnus Yap ◽

Shaunak Chatterjee ◽

...

Keyword(s):

Risk Factors ◽

Systematic Review ◽

Intensive Care ◽

Preterm Birth ◽

Confidence Interval ◽

Pregnant Women ◽

Meta Analysis ◽

Clinical Manifestations ◽

Perinatal Outcomes ◽

In Pregnancy

Abstract Objective To determine the clinical manifestations, risk factors, and maternal and perinatal outcomes in pregnant and recently pregnant women with suspected or confirmed coronavirus disease 2019 (covid-19). Design Living systematic review and meta-analysis. Data sources Medline, Embase, Cochrane database, WHO COVID-19 database, China National Knowledge Infrastructure (CNKI), and Wanfang databases from 1 December 2019 to 26 June 2020, along with preprint servers, social media, and reference lists. Study selection Cohort studies reporting the rates, clinical manifestations (symptoms, laboratory and radiological findings), risk factors, and maternal and perinatal outcomes in pregnant and recently pregnant women with suspected or confirmed covid-19. Data extraction At least two researchers independently extracted the data and assessed study quality. Random effects meta-analysis was performed, with estimates pooled as odds ratios and proportions with 95% confidence intervals. All analyses will be updated regularly. Results 77 studies were included. Overall, 10% (95% confidence interval 7% to14%; 28 studies, 11 432 women) of pregnant and recently pregnant women attending or admitted to hospital for any reason were diagnosed as having suspected or confirmed covid-19. The most common clinical manifestations of covid-19 in pregnancy were fever (40%) and cough (39%). Compared with non-pregnant women of reproductive age, pregnant and recently pregnant women with covid-19 were less likely to report symptoms of fever (odds ratio 0.43, 95% confidence interval 0.22 to 0.85; I 2 =74%; 5 studies; 80 521 women) and myalgia (0.48, 0.45 to 0.51; I 2 =0%; 3 studies; 80 409 women) and were more likely to need admission to an intensive care unit (1.62, 1.33 to 1.96; I 2 =0%) and invasive ventilation (1.88, 1.36 to 2.60; I 2 =0%; 4 studies, 91 606 women). 73 pregnant women (0.1%, 26 studies, 11 580 women) with confirmed covid-19 died from any cause. Increased maternal age (1.78, 1.25 to 2.55; I 2 =9%; 4 studies; 1058 women), high body mass index (2.38, 1.67 to 3.39; I 2 =0%; 3 studies; 877 women), chronic hypertension (2.0, 1.14 to 3.48; I 2 =0%; 2 studies; 858 women), and pre-existing diabetes (2.51, 1.31 to 4.80; I 2 =12%; 2 studies; 858 women) were associated with severe covid-19 in pregnancy. Pre-existing maternal comorbidity was a risk factor for admission to an intensive care unit (4.21, 1.06 to 16.72; I 2 =0%; 2 studies; 320 women) and invasive ventilation (4.48, 1.40 to 14.37; I 2 =0%; 2 studies; 313 women). Spontaneous preterm birth rate was 6% (95% confidence interval 3% to 9%; I 2 =55%; 10 studies; 870 women) in women with covid-19. The odds of any preterm birth (3.01, 95% confidence interval 1.16 to 7.85; I 2 =1%; 2 studies; 339 women) was high in pregnant women with covid-19 compared with those without the disease. A quarter of all neonates born to mothers with covid-19 were admitted to the neonatal unit (25%) and were at increased risk of admission (odds ratio 3.13, 95% confidence interval 2.05 to 4.78, I 2 =not estimable; 1 study, 1121 neonates) than those born to mothers without covid-19. Conclusion Pregnant and recently pregnant women are less likely to manifest covid-19 related symptoms of fever and myalgia than non-pregnant women of reproductive age and are potentially more likely to need intensive care treatment for covid-19. Pre-existing comorbidities, high maternal age, and high body mass index seem to be risk factors for severe covid-19. Preterm birth rates are high in pregnant women with covid-19 than in pregnant women without the disease. Systematic review registration PROSPERO CRD42020178076. Readers’ note This article is a living systematic review that will be updated to reflect emerging evidence. Updates may occur for up to two years from the date of original publication.

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Advanced Maternal Age and Adverse Maternal and Neonatal Outcomes in Pregnant Women

Current Women s Health Reviews ◽

10.2174/1573404816999201009160848 ◽

2020 ◽

Vol 16 ◽

Author(s):

Reza Omani-Samani ◽

Saman Maroufizadeh ◽

Nafise Saedi ◽

Nasim Shokouhi ◽

Arezoo Esmailzadeh ◽

...

Keyword(s):

Birth Weight ◽

Preterm Birth ◽

Low Birth Weight ◽

Cesarean Section ◽

Pregnant Women ◽

Maternal Age ◽

Unwanted Pregnancy ◽

Advanced Maternal Age ◽

Neonatal Outcomes ◽

Maternal And Neonatal Outcomes

Background: Advanced maternal age is an important predictor for maternal and neonatal outcomes such as maternal mortality, low birth weight, stillbirth, preterm birth, cesarean section and preeclampsia. Objective: To determine the association of advanced maternal age and adverse maternal and neonatal outcomes in Iranian pregnant women. Methods: In this hospital-based cross-sectional study, 5117 pregnant women from 103 hospitals in Tehran, Iran, were participated in the study in 2015. The required data were gathered from hospitals which equipped to the department of obstetrics and gynecology. Advanced maternal age was considered as an independent variable and unwanted pregnancy, preeclampsia, preterm birth, cesarean section and low birth weight were considered as interested outcomes. Results: In our study, the prevalence of advanced maternal age was 12.08%. Advanced maternal age was significantly associated with higher risk of unwanted pregnancy (OR: 1.39, 95% CI: 1.12-1.73), preterm birth (OR: 1.75, 95% CI: 1.28- 2.39) and cesarean section (OR: 1.34, 95% CI: 1.03-1.74). In our study, there was no significant relationship between advanced maternal age and preeclampsia but this relationship could be clinically important (OR: 1.48, 95% CI: 0.99-2.20, P=0.052), and there is no significant relationship between advanced maternal age and low birth weight (OR: 1.08, 95% CI: 0.67-1.74, P=0.736). Conclusion: Advanced maternal age is associated with higher risk of unintended pregnancy, preterm birth and cesarean section but our findings did not support advanced maternal age as a risk factor associated with low birth weight.

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Comparison of adverse perinatal outcomes between Asians and Caucasians: a population-based retrospective cohort study in Ontario

BMC Pregnancy and Childbirth ◽

10.1186/s12884-020-03467-w ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Na Zeng ◽

Erica Erwin ◽

Wendy Wen ◽

Daniel J. Corsi ◽

Shi Wu Wen ◽

...

Keyword(s):

Cohort Study ◽

Birth Weight ◽

Preterm Birth ◽

Cesarean Section ◽

Gestational Age ◽

Retrospective Cohort Study ◽

Retrospective Cohort ◽

Perinatal Outcomes ◽

Population Based ◽

Adverse Perinatal Outcomes

Abstract Background Racial disparities in adverse perinatal outcomes have been studied in other countries, but little has been done for the Canadian population. In this study, we sought to examine the disparities in adverse perinatal outcomes between Asians and Caucasians in Ontario, Canada. Methods We conducted a population-based retrospective cohort study that included all Asian and Caucasian women who attended a prenatal screening and resulted in a singleton birth in an Ontario hospital (April 1st, 2015-March 31st, 2017). Generalized estimating equation models were used to estimate the independent adjusted relative risks and adjusted risk difference of adverse perinatal outcomes for Asians compared with Caucasians. Results Among 237,293 eligible women, 31% were Asian and 69% were Caucasian. Asians were at an increased risk of gestational diabetes mellitus, placental previa, early preterm birth (< 32 weeks), preterm birth, emergency cesarean section, 3rd and 4th degree perineal tears, low birth weight (< 2500 g, < 1500 g), small-for-gestational-age (<10th percentile, <3rd percentile), neonatal intensive care unit admission, and hyperbilirubinemia requiring treatment, but had lower risks of preeclampsia, macrosomia (birth weight > 4000 g), large-for-gestational-age neonates, 5-min Apgar score < 7, and arterial cord pH ≤7.1, as compared with Caucasians. No difference in risk of elective cesarean section was observed between Asians and Caucasians. Conclusion There are significant differences in several adverse perinatal outcomes between Asians and Caucasians. These differences should be taken into consideration for clinical practices due to the large Asian population in Canada.

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INOVASIA Study: A Randomized Open Controlled Trial to Evaluate Pravastatin to Prevent Preeclampsia and its Effects on sFlt1/PLGF Levels

American Journal of Perinatology ◽

10.1055/a-1673-5603 ◽

2021 ◽

Author(s):

Muhammad Ilham Aldika Akbar ◽

Angelina Yosediputra ◽

Raditya Eri Pratama ◽

Nur Lailatul Fadhilah ◽

Sulistyowati Sulistyowati ◽

...

Keyword(s):

High Risk ◽

Pregnant Women ◽

Controlled Trial ◽

Intervention Group ◽

Perinatal Outcomes ◽

Neonatal Morbidity ◽

Clinical Risk Factor ◽

Control Group ◽

Significant Deterioration ◽

Plgf Ratio

Objectives To evaluate the effect of pravastatin to prevent preeclampsia (PE) in pregnant women at a high risk of developing preeclampsia and the maternal and perinatal outcomes and the sFlt1/PLGF ratio. Study Design This is an open labelled RCT part of INOVASIA trial. Pregnant women at a high risk of developing PE were recruited and randomized into an intervention group (40) and a control group (40). The inclusion criteria consisted of pregnant women with positive clinical risk factor and abnormal uterine artery doppler examination at 10-20 weeks gestational age. The control group received low dose aspirin (80 mg/day) and calcium (1 g/day), while the intervention group received additional pravastatin (20 mg twice daily) starting from 14-20 weeks gestation until delivery. Research blood samples were collected before the first dose of pravastatin and before delivery. The main outcome was the rate of maternal preeclampsia, maternal-perinatal outcomes, and sFlt-1, PLGF, sFlt-1/PlGF ratio and sEng levels. Results The rate of preeclampsia was (non-significantly) lower in the pravastatin group compared with the control group (17.5% vs 35%). The pravastatin group also had a (non-significant) lower rate of severe preeclampsia, HELLP syndrome, acute kidney injury and severe hypertension. The rate of (iatrogenic) preterm delivery was significantly (p=0.048) lower in the pravastatin group (n=4) compared with the controls (n=12). Neonates in the pravastatin group had significantly higher birthweights (2931 + 537 vs 2625 + 872 g; p=0.006), lower Apgar scores < 7 (2.5 vs 27.5%, p=0.002), composite neonatal morbidity (0 vs 20%, p=0.005) and NICU admission rates (0 vs 15%, p=0.026). All biomarkers show a significant deterioration in the control group compared with non significant changes in the pravastatin group. Conclusions Pravastatin holds promise in the secondary prevention of preeclampsia and placenta-mediated adverse perinatal outcomes by improving the angiogenic imbalance.

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Differences in pregnancy and perinatal outcomes among symptomatic versus asymptomatic COVID-19-infected pregnant women: a systematic review and meta-analysis

BMC Pregnancy and Childbirth ◽

10.1186/s12884-021-04250-1 ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Durray Shahwar A. Khan ◽

La-Raib Hamid ◽

Anna Ali ◽

Rehana A. Salam ◽

Nadeem Zuberi ◽

...

Keyword(s):

Risk Factors ◽

Systematic Review ◽

Pregnant Women ◽

Low Birthweight ◽

Meta Analysis ◽

Perinatal Outcomes ◽

Respiratory Disorder ◽

Significant Difference ◽

The Mean ◽

In Pregnancy

Abstract Background There is dearth of information on COVID-19’s impact on pregnant women. However, literature reported trends of COVID-19 differ, depending on the presence of clinical features upon presentation. Objective This systematic review aimed to assess differences in risk factors, management, complications, and pregnancy and perinatal outcomes in symptomatic vs. asymptomatic pregnant women with confirmed SARS-CoV-2 infection. Methods A search was run on electronic databases to identify studies reporting COVID-19 in pregnancy. Meta-analysis was performed and odds ratios and mean difference with 95% confidence intervals were calculated using Review Manager 5.4. Review Prospero registration number CRD42020204662. Results We included ten articles reporting data from 3158 pregnancies; with 1900 symptomatic and 1258 asymptomatic pregnant women. There was no significant difference in the mean age, gestational age, and body mass index between the two groups. The meta-analysis suggested that pregnant women who were obese (OR:1.37;95%CI:1.15 to 1.62), hypertensive (OR:2.07;95%CI:1.38 to 3.10) or had a respiratory disorder (OR:1.64;95%CI:1.25 to 2.16), were more likely to be symptomatic when infected with SARS-CoV-2. Pregnant women with Black (OR:1.48;95%CI:1.19 to 1.85) or Asian (OR:1.64;95%CI:1.23 to 2.18) ethnicity were more likely to be symptomatic while those with White ethnicity (OR:0.63;95%CI:0.52 to 0.76) were more likely to be asymptomatic. Cesarean-section delivery (OR:1.40;95%CI:1.17 to 1.67) was more likely amongst symptomatic pregnant women. The mean birthweight(g) (MD:240.51;95%CI:188.42 to 293.51), was significantly lower, while the odds of low birthweight (OR:1.85;95%CI:1.06 to 3.24) and preterm birth (< 37 weeks) (OR:2.10;95%CI:1.04 to 4.23) was higher amongst symptomatic pregnant women. Symptomatic pregnant women had a greater requirement for maternal ICU admission (OR:13.25;95%CI:5.60 to 31.34) and mechanical ventilation (OR:15.56;95%CI:2.96 to 81.70) while their neonates had a higher likelihood for Neonatal Intensive Care Unit admission (OR:1.96;95%CI:1.59 to 2.43). The management strategies in the included studies were poorly discussed, hence could not be analyzed. Conclusion The evidence suggests that the presence of risk factors (co-morbidities and ethnicity) increased the likelihood of pregnant women being symptomatic. Higher odds of complications were also observed amongst symptomatic pregnant women. However, more adequately conducted studies with adjusted analysis and parallel comparison groups are required to reach conclusive findings.

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Maternal Prenatal Anthropometry, High Education and Cesarean Delivery as Risk Factors for Low Gestational Age in Iran

Open Medicine Journal ◽

10.2174/1874220301603010077 ◽

2019 ◽

Vol 6 (1) ◽

pp. 77-82

Author(s):

Sorayya Kheirouri ◽

Mohammad Alizadeh ◽

Parvin Sarbakhsh

Keyword(s):

Risk Factors ◽

High Education ◽

Preterm Birth ◽

Cesarean Delivery ◽

Gestational Age ◽

Economic Status ◽

Cross Sectional ◽

Data Set ◽

Pregnancy Weight ◽

High Bmi

Background: Preterm birth is an important contributor to the global burden of disease. Evidence indicating that maternal health, nutritional and socioeconomic status may contribute to preterm birth. Objective: This cross-sectional study was conducted to describe the contribution of prenatal maternal factors on low gestational age, and to assess newborns anthropometric measurements regarding gestational age. Methods: Data of mothers delivering a singleton live infant (n= 759) and their newborns (n= 755) during the two years up to August 2014 were collected. Data were collected from the data set of eight public health centers which were chosen from different administrative regions of Tabriz city and were analyzed. Differences between the groups were assessed by Student’s t-test or one- way analysis of variance (ANOVA). Multiple linear regression was used to estimate the association between gestational age and variables studied. Results: Incidence of preterm birth was 2.1%. Percentage of infants with low birth weight and Head Circumference (HC) under 34 cm was significantly higher in the preterm group. Mean gestational age was lower in mothers with cesarean delivery, high education, high economic status, high BMI, pre-pregnancy weight ≥ 65 kg and medical problem. Gestational age was inversely associated with maternal pre-pregnancy weight ≥ 65 kg (B= -0.20, p= 0.02), high BMI (B= -0.33, p= 0.01), high education (B= -0.47, p= 0.002) and cesarean delivery (B= -0.74, p< 0.001). Conclusion: The results indicate that maternal anthropometric characteristics, education and type of delivery are associated with gestational age. Explorating potentially modifiable risk factors for unfavorable gestational age and integrating them into intervention efforts may ameliorate adverse birth outcomes.

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Perinatal Outcomes in HIV Positive Pregnant Women with Concomitant Sexually Transmitted Infections

Infectious Diseases in Obstetrics and Gynecology ◽

10.1155/2015/508482 ◽

2015 ◽

Vol 2015 ◽

pp. 1-5 ◽

Cited By ~ 3

Author(s):

Erin Burnett ◽

Tammy L. Loucks ◽

Michael Lindsay

Keyword(s):

Preterm Birth ◽

Prenatal Care ◽

Pregnant Women ◽

Perinatal Outcomes ◽

Neonatal Outcomes ◽

Hiv Positive ◽

City Hospital ◽

Transmitted Infection ◽

Sexually Transmitted ◽

Increased Risk

Objective. To evaluate whether HIV infected pregnant women with concomitant sexually transmitted infection (STIs) are at increased risk of adverse perinatal and neonatal outcomes.Methods. We conducted a cohort study of HIV positive women who delivered at an inner-city hospital in Atlanta, Georgia, from 2003 to 2013. Demographics, presence of concomitant STIs, prenatal care information, and maternal and neonatal outcomes were collected. The outcomes examined were the association of the presence of concomitant STIs on the risk of preterm birth (PTB), postpartum hemorrhage, chorioamnionitis, preeclampsia, intrauterine growth restriction, small for gestational age, low Apgar scores, and neonatal intensive care admission. Multiple logistic regression was performed to adjust for potential confounders.Results. HIV positive pregnant women with concomitant STIs had an increased risk of spontaneous PTB (odds ratio (OR) 2.11, 95% confidence interval [CI] 1.12–3.97). After adjusting for a history of preterm birth, maternal age, and low CD4+ count at prenatal care entry the association between concomitant STIs and spontaneous PTB persisted (adjusted OR 1.96, 95% CI 1.01–3.78).Conclusions. HIV infected pregnant women with concomitant STIs relative to HIV positive pregnant women without a concomitant STI are at increased risk of spontaneous PTB.

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Sickle cell disease and pregnancy outcomes: population-based study on 8.8 million births

Journal of Perinatal Medicine ◽

10.1515/jpm-2013-0275 ◽

2014 ◽

Vol 42 (4) ◽

Cited By ~ 19

Author(s):

Nada Alayed ◽

Abbas Kezouh ◽

Lisa Oddy ◽

Haim A. Abenhaim

Keyword(s):

Risk Factors ◽

Sickle Cell Disease ◽

Pregnant Women ◽

Sickle Cell ◽

Perinatal Outcomes ◽

Population Based ◽

Morbidity And Mortality ◽

Cell Disease ◽

Sickle Cell Crisis ◽

Hemoglobin Variants

AbstractTo estimate the prevalence of sickle cell disease (SCD) in pregnancy, and to measure risk factors, morbidity, and mortality among women with SCD with and without crisis at the time of birth.We conducted a population-based, retrospective cohort study on all births in the Healthcare Cost and Utilization Project Nationwide Inpatient Sample (HCUP-NIS) from 1999 to 2008. Births to SCD with and without crisis were identified using ICD-9 codes. Adjusted effects of risk factors and outcomes were estimated using logistic regression analyses. Effect of hemoglobin variants among women with SCD was analyzed as a predictor of crisis.There were 4262 births to women with SCD for an overall prevalence of 4.83 per 10,000 deliveries. 28.5% of women with SCD developed crisis at the time of delivery. The maternal mortality rate was 1.6 per 1000 deliveries in women with SCD, compared to 0.1 per 1000 in women without SCD. Pregnant women with SCD had a higher risk of developing preeclampsia, eclampsia, venous thromboembolism, cardiomyopathy, intrauterine fetal demise, and intrauterine growth restriction. Cesarean delivery rates were higher in women with SCD. Among the 1898 SCD women with identified hemoglobin variants, homozygous SS was the greatest risk factor for sickle cell crisis, accounting for 89.8% of all women who developed crisis.Pregnant women with SCD have a high risk of morbidity and mortality. Developing acute sickle cell crisis worsened perinatal outcomes.

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