Maternal age and parity-associated risks of preterm birth: differences by race/ethnicity

2007 ◽  
Vol 21 (1) ◽  
pp. 34-43 ◽  
Author(s):  
Ashley H. Schempf ◽  
Amy M. Branum ◽  
Susan L. Lukacs ◽  
Kenneth C. Schoendorf
Keyword(s):  
Preterm Birth ◽  
Maternal Age ◽  
Race Ethnicity

scholarly journals Maternal Age Patterns of Preterm Birth: Exploring the Moderating Roles of Chronic Stress and Race/Ethnicity

2020 ◽  
Vol 54 (9) ◽  
pp. 653-664 ◽  
Author(s):  
Sangmi Kim ◽  
Eun-Ok Im ◽  
Jianghong Liu ◽  
Connie Ulrich
Keyword(s):  
Preterm Birth ◽  
Black Women ◽  
Chronic Stress ◽  
Maternal Age ◽  
Ethnic Disparities ◽  
Birth Certificates ◽  
Future Research ◽  
Age Related ◽  
Race Ethnicity ◽  
Racial Ethnic

Abstract Background Despite the suggested contribution of cumulative chronic stress to the racial/ethnic disparities in preterm birth (PTB), it is unclear how chronic stress, maternal age, and race/ethnicity are linked underlying PTB. Purpose We investigated the moderating effect of chronic stress on the maternal age–PTB association among non-Hispanic (N-H) White, N-H Black, Hispanic, and Asian women. Methods We analyzed the Washington State’s Pregnancy Risk Assessment Monitoring System data linked with birth certificates. The sample included women aged 18 years or older who birthed the first, singleton baby without birth defects. Chronic stress was measured by race/ethnicity-specific chronic stress indices. A maternal age–chronic stress interaction was modeled to predict PTB by logistic regression stratified by race/ethnicity. In subanalysis, the moderating role of racism was investigated in the maternal age–chronic stress interaction among three minority groups combined. Results Women’s maternal age trajectory of PTB varied by their race/ethnicity and chronic stress level. N-H White and N-H Black women showed a steeper maternal age-related increase in PTB (weathering) under higher chronic stress, indicating a chronic stress’ cumulative effect with maternal age. Besides, the extent of weathering was amplified by racism on top of chronic stress, particularly among N-H Black women. Conclusions These results show that both chronic stress and racism may develop accelerated PTB risk among minority women. Future research should use more objective and accurate chronic stress measures to ascertain the complex relationships among chronic stress, racial discrimination, and maternal age underlying the racial/ethnic differentials in PTB.

Risk of preterm birth by maternal age at first and second pregnancy and race/ethnicity

2018 ◽  
Vol 46 (5) ◽  
pp. 539-546 ◽  
Author(s):  
Rebecca J. Baer ◽  
Juan Yang ◽  
Vincenzo Berghella ◽  
Christina D. Chambers ◽  
Tumaini R. Coker ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Preterm Birth ◽  
Maternal Age ◽  
Hispanic Women ◽  
Odds Ratios ◽  
Term Infants ◽  
Referent Group ◽  
Race Ethnicity

Abstract We examined the risk of preterm birth (PTB, <37 weeks’ gestation) in a second pregnancy and analyzed the extent to which this risk varies by maternal age and race/ethnicity. The sample included nulligravida mothers in California who delivered two singletons between 2005 and 2011. Logistic regression was used to calculate the odds of PTB in the second pregnancy. Within each race/ethnicity stratum, women delivering term infants in their first pregnancy and between 25 and 34 years old for both pregnancies served as the referent group. There were 2,90,834 women included in the study. Among women who delivered their first infant at term, the odds of delivering their second infant early differed by race and age. Hispanic, Black and Asian non-Hispanic women who were <18 years for both pregnancies were at higher odds of having a PTB in their second pregnancy (adjusted odds ratios 1.7, 3.3 and 2.9, respectively). Asian non-Hispanic women who were <18 years for their first delivery at term and between 18 and 24 years for their second delivery, or were >34 years for both, were also at higher odds of delivering their second baby prematurely (adjusted odds ratios 1.9 and 1.3, respectively). Women who deliver their first infant at <37 weeks of gestation are at 3 to 7 times higher odds of delivering their second infant preterm. Providers should consider including information about these risks in counseling their patients.

scholarly journals Hypertension Before Pregnancy and Infant Outcomes: Secondary Analysis of North Carolina Pregnancy Risks Assessment Monitoring System (PRAMS) Data

2020 ◽  
Author(s):  
Forgive Avorgbedor ◽  
Susan Silva ◽  
James A Blumenthal ◽  
Seonae Yeo ◽  
Elizabeth Merwin ◽  
...  
Keyword(s):  
North Carolina ◽  
Preterm Birth ◽  
Birth Outcomes ◽  
Gestational Age ◽  
Small For Gestational Age ◽  
Maternal Age ◽  
Secondary Analysis ◽  
Infant Outcomes ◽  
Race Ethnicity ◽  
Risks Assessment

Abstract Background: Chronic hypertension complicates birth outcomes. This secondary analysis of data from the North Carolina 2009-2011 Pregnancy Risks Assessment Monitoring System (PRAMS) examined factors associated with infant outcomes (preterm birth and small for gestational age) among women with hypertension before pregnancy to determine if the maternal age and race/ethnicity moderated the effect of preexisting hypertension on preterm birth and small for gestational age infants.Methods: We performed logistic regression to determine whether hypertension before pregnancy (HTN, n=292; non-HTN controls, n=2625), maternal age and race/ethnicity (Black vs Non-Black) and their interactions with hypertension before pregnancy predicted preterm birth and small for gestational age infants compared to normotensive women. Results: Results indicated that women with hypertension before pregnancy had significantly higher rates of preterm birth (29.8% vs. 21.3%) and small for gestational infants (23.0% vs. 17.9%) compared to non-HTN controls without adjusting for covariates. HTN had an effect on preterm birth that was independent of other maternal risk factors (aOR= 1.31) after adjusting for covariates . Being Black was associated with a greater likelihood of preterm birth (aOR=1.55). Conclusion: Hypertension before pregnancy is more likely to be associated Black race and with adverse birth outcomes. Black women are especially likely to experience poor birth outcomes. Continuous education to encourage all women and especially women of color and women with chronic illness to access preconception care is needed

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

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.

Preterm birth, low birthweight, and small for gestational age among women with preeclampsia: Does maternal age matter?

2018 ◽  
Vol 13 ◽  
pp. 260-266 ◽  
Author(s):  
Xun Li ◽  
Weishe Zhang ◽  
Jianhua Lin ◽  
Huai Liu ◽  
Zujing Yang ◽  
...  
Keyword(s):  
Preterm Birth ◽  
Gestational Age ◽  
Small For Gestational Age ◽  
Maternal Age ◽  
Low Birthweight

Cross-Generational Contributors to Preterm Birth in California: Singletons Based on Race/Ethnicity

2018 ◽  
Vol 36 (04) ◽  
pp. 383-392
Author(s):  
Juan Yang ◽  
Rebecca Baer ◽  
Paul Chung ◽  
Laura Jelliffe-Pawlowski ◽  
Tumaini Coker ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Risk Factor ◽  
Preterm Birth ◽  
Preterm Delivery ◽  
Clinical Characteristics ◽  
Birth Registry ◽  
Live Births ◽  
Increased Risk ◽  
Race Ethnicity ◽  
Racial Ethnic

Objective Multiple studies have examined cross-generational patterns of preterm birth (PTB), yet results have been inconsistent and generally focused on primarily white populations. We examine the cross-generational PTB risk across racial/ethnic groups. Study Design Retrospective study of 388,474 grandmother–mother–infant triads with infants drawn from birth registry of singleton live births between 2005 and 2011 in California. Using logistic regression (odds ratios [ORs] and confidence intervals [CIs]), we examined the risk of preterm delivery by gestational age, sociodemographic, socioeconomic, and obstetric clinical characteristics stratified by maternal race/ethnicity. Results The risk of having a preterm infant <32 weeks was greater for women born at <32 weeks (OR: 2.09, 95% CI: 1.62–2.70) and 32 to 36 weeks (OR: 1.51, 95% CI: 1.35–1.70). This increased risk of preterm delivery was present among women in all race/ethnicity groups (white [AOR: 2.00, 95% CI: 1.52–2.63), black [AOR: 1.79, 95% CI: 1.37–2.34], Hispanic [AOR: 2.39, 95% CI: 2.05–2.79], and Asian [AOR: 2.12, 95% CI: 1.20–3.91]), with hypertension as the only consistent risk factor associated with increased risk of preterm delivery. Conclusion Our findings suggest a cross-generational risk of PTB that is consistent across race/ethnicity with hypertension as the only consistent risk factor.

Risks of Selected Fetal Adverse Pregnancy Outcomes at Advance Maternal Age

2021 ◽  
Vol 15 (8) ◽  
pp. 2468-2471
Author(s):  
Saadia Yasmeen ◽  
Sumayya . ◽  
Javeria Saleem ◽  
Jawairiah Liaqat ◽  
Nadia Pervaiz ◽  
...  
Keyword(s):  
Birth Weight ◽  
Preterm Birth ◽  
Low Birth Weight ◽  
Pregnancy Outcomes ◽  
Maternal Age ◽  
Advanced Maternal Age ◽  
Adverse Pregnancy Outcomes ◽  
Control Group ◽  
Postpartum Women ◽  
Adverse Pregnancy

Background and Aim: Advanced maternal age pregnancy could be referred to as pregnancy after 35 years or older. The prevalence of postponing pregnancies is increasing day by day worldwide. However, limited evidence was found on advanced maternal age pregnancy association with fetal adverse outcomes. The present study aimed to evaluate the frequency of advanced maternal age selected fetal adverse pregnancy outcomes. Place and Duration: Obstetrics & Gynaecology department of Alkhidmat Hospital Kohat and Qazi Hussain Ahmad Medical Complex, Nowshera for duration of six months from November 2020 to April 2021. Materials and Methods: This single-centered retrospective study was conducted on 220 postpartum women in the study group (≥35 years) and 170 control group postpartum women (20-34 years) who delivered at Obstetrics & Gynaecology department of Alkhidmat Hospital Kohat and Qazi Hussain Ahmad Medical Complex, Nowshera after 28 gestational weeks. Individuals who met the inclusion criteria were enrolled and sampled based on randomized control sampling technique for both control and study groups. Data extraction checklist and pretested questionnaire were used for data collection from the maternal charts. Adverse pregnancy outcome and advanced maternal age was correlated adjusted relative risks and strength with a 95% confidence interval. SPSS version 20 was used for data analysis and considered p-value >0.05 as a statistical standard. Results: The adverse neonatal outcomes include low birth weight, preterm birth, and stillbirth with a prevalence 38 (17.4%), 46 (20.8%), and 31 (14.2%) respectively in the study group. In the control group, the incidence of low birth weight, preterm birth, and stillbirth was 21 (12.6%), 15 (14.6%) and 6 (3.5%) respectively. The stillbirth (ARR=3.16 95% CI (1.29–6.03) and preterm deliveries (ARR=2.71 95% CI (1.79–3.86) risk had significantly higher prevalence compared to control group advanced age pregnancy. Insignificance association was found between low birth weight and advanced maternal age. Conclusion: Stillbirth and preterm birth was the adverse fetal outcome significantly related with advanced maternal age pregnancy. There was no significant association between low birth weight and advanced maternal age. Keywords: Maternal age, Fetal Adverse Pregnancy Outcomes

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