Exploring Birth Outcome Disparities and the Impact of Prenatal Care Utilization Among North Carolina Teen Mothers

BackgroundThis study investigated the role of prenatal care utilization in explaining disparities in birth outcomes between African-American and White teen mothers in North Carolina.MethodsThis cross-sectional study analyzed birth record data for African-American and White teen mothers provided by the North Carolina State Center of Health Statistics for 2009 (n = 10,515). Hierarchical moderated multiple regression models were completed to explore associations between racial status, prenatal care utilization, and birth outcome disparities amid multiple demographic and medical risk factors.FindingsRacial status as African American was identified as a significant predictor for lower birth weight and gestational age in each regression model when accounting for other demographic variables, medical risk factors, and prenatal care utilization. Results illuminate significant associations between higher prenatal care utilization levels and higher infant birth weight and gestational age for the overall teen population. However, these results did not identify protective effects in reducing racial disparities in birth weight or gestational age.ConclusionGiven these results, a more in-depth exploration of prenatal care client assessment, education, and alternative prenatal care models is warranted to identify strategies for reducing birth outcome disparities between these populations. These findings also suggest the need for further examination of other potential social and economic factors that explain racial disparities in birth outcomes between African-American and White teen populations.     

Second Births to Teenage Mothers: Risk Factors For Low Birth Weight and Preterm Birth

CONTEXT: Teenagers are more likely than older women to have a low-birth-weight infant or a preterm birth, and the risks may be particularly high when they have a second birth. Identifying predictors of these outcomes in second teenage births is essential for developing preventive strategies.
METHODS: Birth certificate data for 1993–2002 were linked to identify second births to Milwaukee teenagers. Predictors of having a low-birth-weight second infant or a preterm second birth were identified using logistic regression.
RESULTS: The same proportion of first and second infants were low-birth-weight (12%), but second births were more likely than first births to be preterm (15% vs. 12%). In analyses that adjusted for demographic, pregnancy and behavioral characteristics, the odds that a second infant was low-birth-weight or preterm were elevated if the mother smoked during pregnancy (odds ratios, 2.2 and 1.9, respectively), had inadequate prenatal weight gain (1.8 and 1.4), had an interpregnancy interval of less than 18 months (1.6–2.9 and 1.4–2.3) or was black (2.7 and 1.7). Women who had received an adequate level of prenatal care had reduced odds of both outcomes (0.6 and 0.4). Women younger than 16 also had increased odds of having a low-birth-weight second infant. Further adjustment for socioeconomic characteristics yielded largely the same results. In addition, women who were unmarried or did not identify a father were at increased risk of both outcomes (1.5 for each), and poor women were at risk of having a low-birth-weight infant (1.3).
CONCLUSIONS: Predictors of poor birth outcomes include modifiable behaviors. Prenatal interventions addressing these behaviors could help improve outcomes.     

Higher Mortality Rate Among Infants of US-Born Mothers Compared to Foreign-Born Mothers in New York City

This study is to compare infant mortality rates (IMRs) between US- and foreign-born mothers in New York City. The linked live birth-infant death records from 1995 to 1998 were analyzed. Overall US-born mothers had a higher IMR than foreign-born mothers, though there were great variations in IMRs by country of maternal birth among foreign-born mothers. US-born mothers had higher IMRs compared to foreign-born mothers for several maternal/infant characteristics. Logistic regression analyses indicated that infants of foreign-born mothers were less likely to die from prematurity, Sudden Infant Death Syndrome and external causes, but were more likely to die of congenital anomalies than those of US-born mothers. Further analyses on the interactions of maternal race/ethnicity and country of birth showed variations in the IMRs of leading causes of death. Infant mortality reduction strategies should be differentially targeted to minority mothers of different countries of birth, particularly for potentially preventable causes of deaths.     

The Content of Prenatal Care and Its Relationship to Preterm Birth in Alberta,Canada

Prenatal care is universally acknowledged as the hallmark of preventive care for pregnant women, and it is commonly assumed to have a positive influence on birth outcomes. The results of studies that have examined the impact of prenatal care on adverse birth outcomes, however, have been equivocal. These investigations have focused primarily on initiation of prenatal care and its timing, and not on the content of care received. Using data obtained from maternal self-reports and an electronic perinatal database, we examined the relationship between selected components of prenatal care (i.e., medical management, health education, and health advice) and the birth of a preterm infant. We found that health care providers are meeting the clinical guidelines for the medical management of pregnancy, but they are not adequately meeting pregnant women's needs for health education and advice. We found no association between the content of prenatal care and the birth of a preterm infant. Prenatal care must focus more on providing health education and advice to pregnant women.     

Low Birth Weight and Preterm Birth Among Arab-American Women in Ohio

Maternal and Child Health Journal - There is limited evidence about prevalence and odds of adverse birth outcomes among Arab American women in the United States. We estimated the prevalence of low...     

Health Care Access and Utilization Among US-Born and Foreign-Born Asian Americans

Despite efforts to eliminate inequality in health and health care, disparities in health care access and utilization persist in the United States. The purpose of this study was to compare the access to care and use of health care services of US-born and foreign-born Asian Americans. We used aggregated data from the National Health Interview Survey (NHIS) from 2003 to 2005, including 2,500 participants who identified themselves as Asian. Associations between country of birth and reported access and utilization of care in the previous 12 months were examined. After controlling for covariates, being foreign-born was negatively related to indicators of access to care, including health insurance (OR = 0.29, 95%CI = 0.18-0.48), routine care access (OR = 0.52, 95%CI = 0.36-0.75), and sick care access [OR = 0.67, 95%CI = 0.47-0.96)]. Being foreign-born was also negatively related to all indicators of health care utilization (office visit: OR = 0.58, 95%CI = 0.41-0.81; seen/talked to a general doctor: OR = 0.69, 95%CI = 0.52-0.90; seen/talked to a specialist: OR = 0.42, 95%CI = 0.28-0.63) but ER visit (OR = 0.84, 95%CI = 0.59-1.20). There are substantial differences by country of birth in health care access and utilization among Asian Americans. Our findings emphasize the need for developing culturally sensitive health services and intervention programs for Asian communities.     

Salmon Bias and Preterm Birth Among Western Immigrants in China

Introduction Immigrants from Western industrialized countries are rarely found in immigrant studies. Our primary objective was to calculate the rate of cesarean delivery, 5-min Apgar score?<7, and preterm birth among Chinese and Western women. Our secondary objective was to examine whether there are significant differences in terms of risk factors between Western immigrants who chose to deliver in their country of citizenship compared to those who chose to deliver in China. Methods Single-center retrospective cohort study in Shanghai, China. Multivariate logistic regression models used delivery outcome, and place of delivery (China vs. country of citizenship) as outcome variables. Results Preterm birth occurred at a rate of 3.82% among Chinese citizens, 4.12% among Chinese-born Western citizens, and 6.54% among non-Chinese-born Western citizens. After adjustment, preterm birth?<37 weeks was more frequent among non-Chinese-born Western citizens compared with Chinese citizens, with an odds ratio of 1.82 (Confidence Interval 1.20–2.78), p?=?0.005. Variables statistically associated with giving birth in China were maternal age ≥35 years and being Chinese-born Western, as well as the absence of medical or obstetrical conditions. Discussion Western immigrants have overall good obstetrical outcomes in China, and this could be partly explained by selective immigration, but also by the Salmon bias, as women with risk factors tend to return to their country of citizenship for the delivery. However, the preterm birth rate was higher among Western women than in their Chinese counterparts, and further research is needed.     

Ego-Dystonic Pregnancy and Prenatal Consumption of Alcohol Among First-Time Mothers

This study examines predictors of drinking during pregnancy among first-time mothers, in order to distinguish those in need of targeted screening and intervention. Data from the prenatal panel of the Parenting for the First Time study were used in hierarchical linear regressions to determine likelihood of prenatal alcohol consumption among a sample of 645 women. African-American women and those of race/ethnicities other than White were less likely to drink, regardless of age or level of education. Among all women, being in school was associated with abstention (P = 0.05). Among teens, endorsing a perception of feeling "pushed around" was a significant indicator of prenatal alcohol consumption (P = 0.05), as was not having plans for infant feeding shortly before delivery (P = 0.05). Among adults with some level of college education, having a first prenatal visit after the fourth month of pregnancy was a significant predictor of drinking (P = 0.01). This study indicates that women who evidence behaviors or attitudes indicating an ego-dystonic pregnancy (one that is psychologically or emotionally uncomfortable), may be more likely to self-medicate and cope via avoidance through drinking. These behaviors and attitudes may be indicators of the need for targeted screening and intervention, as well as indicators of underlying problems to be targeted in treatment. Further, among all women for whom continued education is a possibility, retaining the ability to attend school during the pregnancy can be protective.     

Differences in Sexual Risk Behavior and HIV/AIDS Risk Factors Among Foreign-Born and US-Born Hispanic Women

Hispanic women in the United States (US) are disproportionately affected by human immunodeficiency virus (HIV) infection. There are very limited data on the sexual risk differences among US-born Hispanic women (USBHW) and foreign-born Hispanic women (FBHW). Sexually active USBHW and FBHW were asked to complete a self-administered questionnaire. Demographics, sexual history, testing for HIV or sexually transmitted infection (STI), condom use, partner sexual risk and alcohol/substance use were compared between USBHW and FBHW. FBHW were 3.5 years older than USBHW at first sexual experience (95% CI: 2.8, 4.1; P < 0.001). This remained significant after controlling for age and education. There was no difference between groups in the proportion of women with >1 reported sexual partner in the last year. FBHW reported fewer risk behaviors and lower rates of STI and alcohol/drug abuse. However, FBHW were less likely to have been tested for HIV. HIV prevention strategies would better target Hispanic women in the US if differences in risk behavior between FBHW and USBHW were incorporated.     

Virtual Prenatal and Postpartum Care Acceptability Among Maternity Care Providers

Maternal and Child Health Journal - The Covid-19 pandemic and statewide stay-at-home orders abruptly impacted clinic operations necessitating the incorporation of telehealth. Uptake of telehealth...     

Experiences with Prenatal and Postpartum Contraceptive Services among Women with a Preterm Birth

BackgroundProviding postpartum contraception can help to achieve recommended interpregnancy intervals (≥18 months from birth to next pregnancy), decrease the risk of preterm birth, and thus improve maternal and infant health outcomes of future pregnancies. However, the experiences of women with preterm birth regarding contraceptive services have not been documented. We sought to better understand contraceptive counseling experiences and postpartum contraception of women with a preterm birth.MethodsWe interviewed 35 women, ages 18–42 years, with a recent preterm birth in California. The transcribed interviews were analyzed using ATLAS.ti v.8.ResultsWomen had public (n = 15), private (n = 16), or no insurance (n = 4) at the time of the interview. Women were mainly Latina (n = 14), Caucasian (n = 9), or African American (n = 6); 15 women were foreign born. Women's experiences ranged from spontaneous preterm births to births with severe medical complications. We identified five themes that were associated with women's engagement in the contraceptive method choice and understanding of birth spacing: 1) timing and frequency of contraceptive counseling; 2) quality of patient–provider interaction and ability to follow up on questions; 3) women's personal experiences with contraceptive use and experiences of other women; 4) context in which contraceptive counseling was framed; and 5) system barriers to contraceptive use.ConclusionsPostpartum contraceptive counseling should address women's preterm birth experience, medical conditions, age, contraceptive preference, and childbearing plans. Having a preterm birth intensifies gaps in hospital and outpatient clinic coordination and provider–patient communication that can lead to use of less effective or no contraceptive methods and risk of early subsequent unplanned pregnancies.     

Urinary Bisphenol A Levels during Pregnancy and Risk of Preterm Birth

Background

Preterm birth (PTB), a leading cause of infant mortality and morbidity, has a complex etiology with a multitude of interacting causes and risk factors. The role of environmental contaminants, particularly bisphenol A (BPA), is understudied with regard to PTB.

Objectives

In the present study we examined the relationship between longitudinally measured BPA exposure during gestation and PTB.

Methods

A nested case–control study was performed from women enrolled in a prospective birth cohort study at Brigham and Women’s Hospital in Boston, Massachusetts, during 2006–2008. Urine samples were analyzed for BPA concentrations at a minimum of three time points during pregnancy on 130 cases of PTB and 352 randomly assigned controls. Clinical classifications of PTB were defined as “spontaneous,” which was preceded by spontaneous preterm labor or preterm premature rupture of membranes, or “placental,” which was preceded by preeclampsia or intrauterine growth restriction.

Results

Geometric mean concentrations of BPA did not differ significantly between cases and controls. In adjusted models, urinary BPA averaged across pregnancy was not significantly associated with PTB. When examining clinical classifications of PTB, urinary BPA late in pregnancy was significantly associated with increased odds of delivering a spontaneous PTB. After stratification on infant’s sex, averaged BPA exposure during pregnancy was associated with significantly increased odds of being delivered preterm among females, but not males.

Conclusions

These results provide little evidence of a relationship between BPA and prematurity, though further research may be warranted given the generalizability of participant recruitment from a tertiary teaching hospital, limited sample size, and significant associations among females and within the clinical subcategories of PTB.

Citation

Cantonwine DE, Ferguson KK, Mukherjee B, McElrath TF, Meeker JD. 2015. Urinary bisphenol A levels during pregnancy and risk of preterm birth. Environ Health Perspect 123:895–901; http://dx.doi.org/10.1289/ehp.1408126     

Preterm Birth and Receipt of Postpartum Contraception Among Women with Medicaid in North Carolina

Maternal and Child Health Journal - To compare receipt of contraception and method effectiveness in the early postpartum period among women with and without a recent preterm birth (PTB). We used...     

Medical and Psychosocial Risk Profiles for Low Birthweight and Preterm Birth

ObjectivesLow birthweight and preterm birth are risk factors for infant mortality and persistent problems. This study uses representative data to assess whether distinct latent profiles of co-occurring medical and psychosocial factors have implications for preterm birth and low birthweight.MethodsData are from the Pregnancy Risk Assessment Monitoring System, a cross-sectional survey constituting representative data on pregnancies from 2012 to 2013. Latent class analysis derived classes of pregnant women potentially at risk for low birthweight and/or preterm birth.ResultsLatent class analysis identified five homogenous profiles of interrelated psychosocial and medical factors. Risk was greatest for the profile marked by high rates of medical factors, followed by a high risk for a profile marked by a combination of very low income and psychosocial factors. Two profiles involving low income and very low income also indicated greater risk for adverse birth outcomes related to socioeconomic status.ConclusionsMore attention should be paid to screening for and addressing psychosocial risk in concert with prenatal care. Women who show high-risk profiles can be monitored and supported by an interdisciplinary care team, when warranted.