Changes in Racial and Ethnic Inequities in Pregnancy-Associated Death in the United States During the COVID-19 Pandemic

Objectives. To examine changes in cause-specific pregnancy-associated deaths during the COVID-19 pandemic by race and ethnicity and assess changes in racial and ethnic inequities in pregnancy-associated deaths. Methods. We used US vital statistics mortality data from 2018 to 2021 to identify pregnancy-associated deaths among females aged 15 to 44 years. We calculated crude pregnancy-associated death rates (deaths per 100 000 live births) by year, cause, and race/ethnicity, percent change in death rate, and the inequity (difference) in rate for each racial or ethnic group compared with non-Hispanic White people. Results. The pregnancy-associated death rate for obstetric, drug-related, homicide, and other causes of death increased during 2020, and obstetric deaths continued to increase in 2021. Overall estimates mask 2021 increases in drug-related deaths among Hispanic, non-Hispanic American Indian and Alaska Native (AI/AN), and non-Hispanic Asian people; increases in homicide among most racial and ethnic groups; and increases in suicide among Hispanic, non-Hispanic AI/AN, and non-Hispanic Asian people. Conclusions. We found disproportionate increases in pregnancy-associated deaths from nonobstetric causes among minoritized racial and ethnic groups during the COVID-19 pandemic. (Am J Public Health. Published online ahead of print May 16, 2024:e1-e10. https://doi.org/10.2105/AJPH.2024.307651).

Variation and correlates of psychosocial wellbeing among nulliparous women with preeclampsia

OBJECTIVES

To identify classes of psychosocial stressors among women who developed preeclampsia and to evaluate the associations between these classes and correlates of psychosocial wellbeing.

STUDY DESIGN

We performed a secondary analysis of women who developed preeclampsia (n = 727) from the Nulliparous Pregnancy Outcomes Study: Monitoring Mothers-to-be (nuMoM2b) cohort (2010-2013). Latent class analysis was used to identify classes of social stressors based on seven psychological and sociocultural indicators. Associations between latent classes and correlates (demographics, health behavior, and health-systems level) were estimated using multinomial logistic regression.

MAIN OUTCOME MEASURES

Classes of psychosocial wellbeing.

RESULTS

Among women who developed preeclampsia, three classes reflective of psychosocial wellbeing were identified: Class 1: Intermediate Psychosocial Wellbeing (53 %), Class 2: Positive Psychosocial Wellbeing (31 %), Class 3: Negative Psychosocial Wellbeing (16 %). Women in the Negative Psychosocial Wellbeing Class were more likely to have poor sleep and a sedentary lifestyle compared with the Positive and Intermediate Psychosocial Wellbeing Classes. Both the Negative and Intermediate Psychosocial Wellbeing Classes reported concern about their quality of medical care compared with the Positive Psychosocial Wellbeing Class (adjusted odds ratio [aOR]: 6.19, 95 % confidence interval [CI]: 3.37, 11.36 and aOR: 2.19, 95 % CI: 1.31, 3.65, respectively).

CONCLUSIONS

Women who develop preeclampsia are heterogenous and experience different intensities of internal and external stressors. Understanding the linkages between psychosocial wellbeing during pregnancy and modifiable behavioral and structural factors may inform future tailored management strategies for preeclampsia and the optimization of maternal postpartum health.

Missing Black males among preterm births in the US, 1995 to 2019

BACKGROUND

In the US, non-Hispanic (NH) Black birthing persons show a two-fold greater risk of fetal death relative to NH white birthing persons. Since males more than females show a greater risk of fetal death, such loss in utero may affect the sex composition of live births born preterm (PTB; <37 weeks gestational age). We examine US birth data from 1995 to 2019 to determine whether the ratio of male to female preterm (i.e., PTB sex ratios) among NH Black births falls below that of NH whites and Hispanics.

METHODS

We acquired data on all live births in the US from January 1995 to December 2019. We arrayed 63 million live births into 293 "conception cohort" months of which 2,475,928 NH Black, 5,746,953 NH white, and 2,511,450 Hispanic infants were PTB. We used linear regression methods to identify trend and seasonal patterns in PTB sex ratios. We also examined subgroup differences in PTB sex ratios (e.g., advanced maternal ages, twin gestations, and narrower gestational age ranges).

RESULTS

The mean PTB sex ratio for NH Black births over the entire test period (1.06, 95% Confidence Interval [CI]: 1.05, 1.07) is much lower than that for NH white births (1.18, 95% CI: 1.17, 1.19). NH Black PTB sex ratios are especially low for twins and for births to mothers 35 years or older. Only NH white PTB sex ratios show a trend over the test period.

CONCLUSIONS

Analysis of over 10 million PTBs reveals a persistently low male PTB frequency among NH Black conception cohorts relative to NH white cohorts. Low PTB sex ratios among NH Black births concentrate among subgroups that show an elevated risk of fetal death. PTB sex ratios may serve as an indicator of racial/ethnic and subgroup differences in fetal death, especially among male gestations.

Validity of Birth Certificate Data Compared With Hospital Discharge Data in Reporting Maternal Morbidity and Disparities

A growing number of studies are using birth certificate data, despite data-quality concerns, to study maternal morbidity and associated disparities. We examined whether conclusions about the incidence of maternal morbidity, including Black-White disparities, differ between birth certificate data and hospitalization data. Using linked birth certificate and hospitalization data from California and Michigan for 2018 (N=543,469), we found that maternal morbidity measures using birth certificate data alone are substantially underreported and have poor validity. Furthermore, the degree of underreporting in birth certificate data differs between Black and White individuals and results in erroneous inferences about disparities. Overall, Black-White disparities were more modest in the birth certificate data compared with the hospitalization data. Birth certificate data alone are inadequate for studies of maternal morbidity and associated racial disparities.

Mortality Due to Hyperglycemic Crises in the US, 1999-2022

This study analyzes trends in US mortality attributed to both diabetic ketoacidosis and hyperosmolar hyperglycemic state from 1999-2022.

Change in Epidemiology of Creutzfeldt-Jakob Disease in the US, 2007-2020

This cross-sectional study uses Centers for Disease Control and Prevention multiple cause of death data to examine recent US trends in Creutzfeldt-Jakob disease.

Short Interpregnancy Intervals Among Women Experiencing Homelessness in Colorado

Importance

Short interpregnancy intervals (SIPIs) are associated with increased risk of adverse maternal and neonatal outcomes. Disparities exist across socioeconomic status, but there is little information on SIPIs among women experiencing homelessness.

Objective

To investigate (1) differences in rates and characteristics of SIPIs between women experiencing homelessness and domiciled women, (2) whether the association of homelessness with SIPIs differs across races and ethnicities, and (3) whether the association between SIPIs of less than 6 months (very short interpregnancy interval [VSIPIs]) and maternal and neonatal outcomes differs between participant groups.

Design, Setting, and Participants

This cohort study used a Colorado statewide database linking the Colorado All Payer Claims Database, Homeless Management Information System, death records, and infant birth records. Participants included all women who gave birth between January 1, 2016, and December 31, 2021. Data were analyzed from September 1, 2022, to May 10, 2023.

Exposures

Homelessness and race and ethnicity.

Main Outcomes and Measures

The primary outcome consisted of SIPI, a binary variable indicating whether the interval between delivery and conception of the subsequent pregnancy was shorter than 18 months. The association of VSIPI with maternal and neonatal outcomes was also tested.

Results

A total of 77 494 women (mean [SD] age, 30.7 [5.3] years) were included in the analyses, of whom 636 (0.8%) were women experiencing homelessness. The mean (SD) age was 29.5 (5.4) years for women experiencing homelessness and 30.7 (5.3) years for domiciled women. In terms of race and ethnicity, 39.3% were Hispanic, 7.3% were non-Hispanic Black, and 48.4% were non-Hispanic White. Associations between homelessness and higher odds of SIPI (adjusted odds ratio [AOR], 1.23 [95% CI, 1.04-1.46]) were found. Smaller associations between homelessness and SIPI were found among non-Hispanic Black (AOR, 0.59 [95% CI, 0.37-0.96]) and non-Hispanic White (AOR, 0.57 [95% CI, 0.39-0.84]) women compared with Hispanic women. A greater association of VSIPI with emergency department visits and low birth weight was found among women experiencing homelessness compared with domiciled women, although no significant differences were detected.

Conclusions and Relevance

In this cohort study of women who gave birth from 2016 to 2021, an association between homelessness and higher odds of SIPIs was found. These findings highlight the importance of conception management among women experiencing homelessness. Racial and ethnic disparities should be considered when designing interventions.

Casino-based cash transfers and fertility among the Eastern Band of Cherokee Indians in North Carolina: A time-series analysis

Fertility decline remains a key concern among high-income countries. Prior research indicates that income supplementation through unconditional cash transfers (UCT) may correspond with increased fertility. We examine whether a casino-based UCT, in the form of per capita (percap) payments to members of the Eastern Band of Cherokee Indians (EBCI) corresponds with an acute increase in fertility. We use North Carolina vital statistics datasets from 1990 to 2006 and apply time-series analysis methods to examine the relation between specific months of percap payments (exposure) and monthly number of conceptions that result in live births (outcome) among the EBCI. We control for autocorrelation and monthly counts of births (arrayed by conception cohorts) among white women (ineligible for UCT receipt) in the study region. Results indicate an increase in conceptions that result in live births at 1 and 3 months after percap receipt among EBCI women aged ≥20 years (exposure month lag 1 coefficient = 1.74, p = 0.03; exposure month lag 3 coefficient = 1.60, p = 0.04). Exploratory analyses indicate that the observed fertility increase concentrates among primiparae EBCI women. We do not find any association between percap payment timing and births to EBCI women aged <20 years.

Pregnancy and pregnancy intention after experiencing infertility: A longitudinal study of women in Malawi

BACKGROUND

Infertility is a common experience among individuals and couples. Infertility may resolve without intervention, but little is known about pregnancy intentions and incidence of pregnancy following infertility, particularly in low-resource settings.

METHODS

Data come from UTHA, a longitudinal cohort study in Central Malawi, with baseline and follow up surveys conducted from 2014-2019 (N = 1,030 reproductive-aged women). We assessed bivariable and multivariable relationships between reported infertility at baseline and subsequent pregnancy and retrospective pregnancy intentions. Pregnancy intention was measured with the London Measure of Unplanned Pregnancy (LMUP), a scale validated in Malawi (Range = 0-12).

RESULTS

Approximately 20% of the sample reported that they had ever experienced infertility (tried to become pregnant for at least two years without conceiving in that time) at baseline. The proportion of women who reported a new pregnancy during the follow up period (mean = 4.3 years) was the same (65%) for women who had and had not experienced infertility. Among women who became pregnant, levels of pregnancy intendedness were similar between women who had and had not experienced infertility. Prospective desire for a/another child at baseline was associated with subsequent pregnancy (AOR: 1.59; 95%CI: 1.06-2.39) and was also associated with higher levels of pregnancy intendedness measured retrospectively (LMUP of 9.4 vs. 8.4).

CONCLUSIONS

Experienced infertility was not associated with differential odds of having a subsequent pregnancy or the intendedness of a subsequent pregnancy. Thus, women who have experienced infertility should be included in family planning programs and research to support all women in achieving their reproductive goals.

Reproductive outcomes following contraceptive discontinuation for method-related reasons: An analysis of 49 Demographic and Health Surveys

Contraceptive discontinuation for method-related reasons is a common experience in low- and middle-income countries (LMICs) and may heighten women's risk of unintended pregnancy. Few studies have provided a comprehensive assessment of reproductive outcomes following contraceptive discontinuation in LMICs over the last decade. Using cross-sectional data from 49 Demographic and Health Surveys, we applied competing risks estimation to calculate monthly probabilities of contraceptive resumption and pregnancy over a 12-month period among pooled, regional, and country-specific samples of women who discontinued contraception for method-related reasons (corresponding to 174,726 episodes of discontinuation). We also examined the pregnancy intention status of births/current pregnancies among those who became pregnant in the 12 months following contraceptive discontinuation for method-related reasons. In the pooled sample, the three-month probability of pregnancy and resumption of contraceptive use was 12% and 47%, respectively; by 12 months these probabilities increased to 22% and 55%, respectively. Country-specific analyses show that the probabilities of resuming contraception by three months ranged from 15% in Liberia, Mali, and Sierra Leone to 85% in Bangladesh. On average, the majority of pregnancies/births that occured following discontinuation for method-related reasons were subsequently reported as unintended. However, reports varied depending on when women became pregnant within the 12 months following discontinuation. Our findings suggest the need for more nuanced measures of contraceptive use dynamics-including measures that distinguish between women who resume use of contraception from women who remain at risk of pregnancy in the short period after discontinuation-to better inform specific policies and interventions, particularly aimed at those who remain at risk of pregnancy.

Prospective Cohort Study of Emergency Department Visit Frequency and Diagnoses Before and During COVID-19 Pandemic in Urban, Low-Income, US- and Foreign-Born Mothers in Boston, MA

Background

The coronavirus 2019 (COVID-19) pandemic fundamentally changed how populations interface with the healthcare system. Despite historical spikes in US mortality during the pandemic, emergency department (ED) visits were paradoxically low. This is a concerning phenomenon that raises a red flag regarding access to care, especially among vulnerable populations. In this study we sought to understand how ED utilization evolved during the COVID-19 pandemic among traditionally understudied, low-income, racially diverse US- and foreign-born mothers.

Methods

This is a secondary analysis of a pre-existing dataset of 3,073 participants enrolled in the Boston Birth Cohort at birth and followed prospectively. We obtained ED visit diagnoses from 2019 and 2020 via electronic health records, categorized according to the International Classification of Diseases, 10th Revision, and compared them using graph plots, chi-square, and negative binomial regression.

Results

The number of ED visits decreased by 29.1% (P < 0.001) from 2019 (1,376) to 2020 (976). However, visits for infectious and parasitic diseases, including COVID-19, increased by 90.6% (32:61) with COVID-19 accounting for 77% of those visits in 2020 (47/61). Mental health-related visits increased by 40.9% (44:62), with diagnoses of alcohol use disorder increasing by 183% (6:17). Regression analysis showed 50% less ED utilization among foreign- vs US-born participants; however, the increase in infectious diseases visits was greater among foreign-born compared to US-born mothers (185% vs 26%, P = 0.01), while the increase in mental health diagnoses was greater among US-born mothers (69% vs -33%, P = 0.10).

Conclusion

Despite a decrease in total ED visits during the pandemic, there was an increase in COVID-19- (immigrant > US born) and mental health- (US-born only) related visits. Our findings demonstrate that EDs remain a critical access point for care for minority populations and have implications for preparedness, resources, and services of EDs in urban settings to better address the needs of communities. However, alternative avenues for healthcare services for these populations, particularly during health crises, warrant further investigation.

Disparities in preterm birth following the July 1995 Chicago heat wave

PURPOSE

To evaluate if changes in preterm birth (PTB, <37 weeks of gestation) incidence differed between non-Hispanic (NH) Black and NH white births following the July 1995 Chicago heat wave-among the most severe U.S. heat waves since 1950.

METHODS

We used an ecologic study design. We obtained birth data from January 1990-December 1996 from the National Vital Statistics File to calculate the mean monthly PTB incidence in Chicago's Cook County, Illinois. Births between July 1995 and February 1996 were potentially exposed to the heat wave in utero. We generated time series models for NH Black and NH white births, which incorporated synthetic controls of Cook County based on unexposed counties. We ran a secondary analysis considering socioeconomic status (SES).

RESULTS

From 1990-1996, the mean monthly PTB incidence among NH Black births was 18.6% compared to 7.8% among NH white births. The mean monthly PTB incidence among NH Black births from August 1995-January 1996 was 16.7% higher than expected (three additional PTBs per 100 live births per month [95% confidence interval (CI): 1, 5]). A similar increase occurred among low-SES NH Black births. No increase appeared among NH white births.

CONCLUSIONS

Severe heat waves may increase racial disparities in PTB incidence.

Psychosocial Stressors as a Determinant of Maternal Cardiovascular Health During Pregnancy

Maternal psychosocial stress may be a risk factor for poor cardiovascular health (CVH) during pregnancy. We aimed to identify classes of psychosocial stressors in pregnant women and to evaluate their cross-sectional association with CVH. We performed a secondary analysis of women from the Nulliparous Pregnancy Outcomes Study: Monitoring Mothers-to-be (nuMoM2b) cohort (2010 to 2013). Latent class analysis was used to identify distinct classes of exposure to psychosocial stressors based on psychological (stress, anxiety, resilience, depression) and sociocultural indicators (social support, economic stress, discrimination). Optimal and suboptimal CVH was defined based on the presence of 0 to 1 and ≥2 risk factors (hypertension, diabetes mellitus, smoking, obesity, inadequate physical activity), respectively based on the American Heart Association Life's Essential 8. We used logistic regression to evaluate the association between psychosocial classes and CVH. We included 8,491 women and identified 5 classes reflective of gradations of psychosocial stress. In unadjusted models, women in the most disadvantaged psychosocial stressor class were approximately 3 times more likely to have suboptimal CVH than those in the most advantaged class (odds ratio 2.98, 95% confidence interval: 2.54 to 3.51). Adjusting for demographics minimally attenuated the risk (adjusted odds ratio 2.09, 95% confidence interval: 1.76 to 2.48). We observed variation across psychosocial stressor landscapes in women in the nuMoM2b cohort. Women in the most disadvantaged psychosocial class had a greater risk of suboptimal CVH which was only partially explained by differences in demographic characteristics. In conclusion, our findings highlight the association of maternal psychosocial stressors with CVH during pregnancy.

The Pent-Up Demand for Breastfeeding Among US Women: Trends After COVID-19 Shelter-in-Place

Objectives. To estimate changes in national breastfeeding trends immediately before and after COVID-19‒related workplace closures in early 2020. Methods. The implementation of shelter-in-place policies in early 2020, when 90% of people in the United States were urged to remain at home, represents a unique natural experiment to assess the pent-up demand for breastfeeding among US women that may be stymied by the lack of a national paid leave policy. We used the 2017-2020 Pregnancy Risk Assessment Monitoring System (n = 118 139) to estimate changes in breastfeeding practices for births occurring before and after shelter-in-place policies were implemented in the United States. We did this in the overall sample and by racial/ethnic and income subgroups. Results. There was no change in breastfeeding initiation and a 17.5% increase in breastfeeding duration after shelter-in-place, with lingering effects through late 2020. High-income and White women demonstrated the largest gains. Conclusions. The United States ranks worse than similar countries when it comes to breastfeeding initiation and duration. This study suggests that this is partly attributable to inadequate access to postpartum paid leave. This study also demonstrates inequities introduced by patterns of remote work during the pandemic. (Am J Public Health. 2023;113(8):870-873. https://doi.org/10.2105/AJPH.2023.307313).

The Relationship Between Contraceptive Method Use and Return of Fecundity Among Women Attempting Pregnancy in Low- and Middle-Income Countries

One of the most common barriers to using effective family planning methods is the belief that hormonal contraceptives and contraceptive devices have adverse effects on future fertility. Recent evidence from high-income settings suggests that some hormonal contraceptive methods are associated with delays in return of fecundity, yet it is unclear if these findings generalize to low- and middle-income populations, especially in regions where the injectable is widely used and pressure to bear children is significant. Using reproductive calendar data pooled across 47 Demographic and Health Surveys, we find that the unadjusted 12-month probability of pregnancy for women attempting pregnancy after discontinuing traditional methods, condoms, the pill, and the IUD ranged from 86% to 91%. The 12-month probability was lowest among those who discontinued injectables and implants, with approximately 1 out of 5 women not becoming pregnant within one year after discontinuation. Results from multivariable analysis showed that compared with users of either periodic abstinence or withdrawal, users of the pill, IUD, injectable, and implant had lower fecundability following discontinuation, with the largest reductions occurring among women who used injectables and implants. These findings indicate that women's concerns about potential short-term reductions in fecundity following contraceptive use are not unfounded.

A novel indicator of selection in utero

Background and objectives

Selection in utero predicts that population stressors raise the standard for how quickly fetuses must grow to avoid spontaneous abortion. Tests of this prediction must use indirect indicators of fetal loss in birth cohorts because vital statistics systems typically register fetal deaths at the 20th week of gestation or later, well after most have occurred. We argue that tests of selection in utero would make greater progress if researchers adopted an indicator of selection against slow-growing fetuses that followed from theory, allowed sex-specific tests and used readily available data. We propose such an indicator and assess its validity as a dependent variable by comparing its values among monthly birth cohorts before, and during, the first 10 months of the COVID-19 pandemic in Sweden.

Methodology

We apply Box-Jenkins methods to 50 pre-pandemic birth cohorts (i.e., December 2016 through January 2020) and use the resulting transfer functions to predict counterfactual values in our suggested indicator for selection for ten subsequent birth cohorts beginning in February 2020. We then plot all 60 residual values as well as their 95% detection interval. If birth cohorts in gestation at the onset of the pandemic lost more slow-growing fetuses than expected from history, more than one of the last 10 (i.e. pandemic-exposed) residuals would fall below the detection interval.

Results

Four of the last 10 residuals of our indicator for males and for females fell below the 95% detection interval.

Conclusions and implications

Consistent with selection in utero, Swedish birth cohorts in gestation at the outset of the COVID-19 pandemic included fewer than expected infants who grew slowly in utero.

Texas' 2021 Ban on Abortion in Early Pregnancy and Changes in Live Births

This study evaluates changes in the number of births in Texas after passage of Texas’ Senate Bill 8 (SB8), which bans abortions as early as 5 weeks’ gestation.

Role of Maternal Age in Increasing Severe Maternal Morbidity Rates in the United States

OBJECTIVE

To evaluate a commonly proposed explanation for increasing rates of severe maternal morbidity (SMM) in the United States: shifts in the birthing population to older maternal ages, a known risk factor for SMM.

METHODS

We conducted a cross-sectional analysis comparing delivery hospitalizations from two time points (2008-2009 to 2017-2018) using hospital discharge data from the National Inpatient Sample. We used demographic decomposition techniques to evaluate whether increasing rates of SMM and nontransfusion SMM were explained by population-level increases in maternal age or changes in age-specific rates. Analyses were stratified by race and ethnicity.

RESULTS

Rates of SMM and nontransfusion SMM significantly increased in the United States between 2008 and 2018 from 135.6 to 170.5 and 58.8 to 67.9 per 10,000 delivery hospitalizations, respectively, with increases observed for nearly all racial and ethnic groups. Over this same period, the proportion of births to people younger than age 25 years decreased and births to people of advanced maternal age (35 years and older) increased, with the largest increases occurring among people identified as non-Hispanic American Indian/Alaskan Native (9.8-13.0%), non-Hispanic Black (10.7-14.4%), and Hispanic (12.1-17.1%). Decomposition analyses indicated that the changing maternal age distribution had little effect on SMM trends. Rather, increases in SMM and nontransfusion SMM were primarily driven by increases in age-specific SMM rates, including rising rates among younger people. Contributions of maternal age shifts were minimal for all racial and ethnic groups except among non-Hispanic Black people, for which 17-34% of the rise in SMM was due to increasing maternal age.

CONCLUSION

Except among certain racial groups, increases in U.S. population-level SMM rates over the past decade were due to increases in age-specific rates rather than shifts to older maternal age among the birthing population. Increasing SMM rates across the maternal age spectrum could indicate worsening prepregnancy health status of the birthing population.

Knowledge of fertility and perception of fertility treatment among adults with sickle cell disease (KNOW FERTILITY)

Introduction

This study assessed fertility knowledge in adults with sickle cell disease using the Cardiff Fertility Knowledge Scale and Fertility Treatment Perception Survey and compared knowledge scores in respondents with sickle cell disease to previously reported unaffected cohorts.

Methods

This cross-sectional study surveyed adults over age 18 with sickle cell disease at an adult sickle cell disease center using a 35-question survey addressing infertility risk factor knowledge and perceptions of fertility treatment. Analyses included summary statistics for continuous and categorical variables, univariate linear regression, and Mann-Whitney U tests for group comparisons of Fertility Knowledge Scale scores. Fertility Treatment Perception Survey scores were measured by medians of the two positive statements and four negative statements to generate separate positive and negative treatment belief scores. Statistical significance was set at p < 0.05 for all analyses.

Results

Ninety-two respondents (71 female, 21 male) with median age of 32 years (IQR: 25.0, 42.5) completed the survey between October 2020-May 2021. Sixty-five percent of respondents reported taking sickle cell disease treatment and 18% reported refusing at least one sickle cell disease treatment due to fertility concerns. The mean Fertility Knowledge Score was 49% (SD: 5.2), lower than reported in an international cohort (57% vs. 49%, p = 0.001), and higher than in a cohort of reproductive-aged Black women in the USA (49% vs. 38%, p = 0.001). Less than 50% of respondents correctly identified common infertility risk factors including sexually transmitted infections, advanced age, and obesity. Mean positive fertility perception score was 3 (IQR 3, 4), and negative fertility perception score was 3.5 (IQR 3, 4). Factors associated with agreement with negative fertility perception statements included: trying to conceive, refusing sickle cell disease treatment, and undergoing fertility treatment.

Discussion

Opportunities exist to improve knowledge of infertility risk factors among adults with sickle cell disease. This study raises the possibility that nearly one in five adults with sickle cell disease refuse SCD treatment or cure due to infertility concerns. Education about common infertility risks factors needs to be addressed alongside disease- and treatment- associated fertility risks.

Excess Injury Mortality in Washington State During the 2021 Heat Wave

PUBLIC HEALTH IMPLICATIONS

Under global warming scenarios, heat waves of this magnitude will become much more common. Adaptation and planning efforts are needed to protect residents of the historically temperate Pacific Northwest for a range of health outcomes. (Am J Public Health. 2023;113(6):657-660. https://doi.org/10.2105/AJPH.2023.307269).

Secular trends in premature and early menopause in low-income and middle-income countries

BACKGROUND

While secular trends in high-income countries show an increase in the mean age at menopause, it is unclear if there is a similar pattern in low-income and middle-income countries (LMICs), where women's exposure to biological, environmental and lifestyle determinants of menopause may differ. Premature (before age 40 years) and early (ages 40-44 years) menopause could have negative repercussions on later life health outcomes which in ageing societies could mean further stress on low-resource health systems. An evaluation of such trends in LMICs has been hampered by the suitability, quality and comparability of data from these countries.

METHODS

Using 302 standardised household surveys from 1986 to 2019, we estimate trends and CIs using bootstrapping in the prevalence of premature and early menopause in 76 LMICs. We also developed a summary measure of age at menopause for women who experience menopause before the age of 50 years based on demographic estimation methods that can be used to measure menopausal status in surveys with truncated data.

RESULTS

Trends indicate an increasing prevalence of early and premature menopause in LMICs, in particular in sub-Saharan Africa and South/Southeast Asia. These regions also see a suggested decline of the mean age at menopause with greater variation across continents.

CONCLUSIONS

This study enables the analysis of menopause timing by exploiting data generally used for the study of fertility by methodologically allowing the use of truncated data. Findings show a clear increase in prevalence of premature and early menopause in the regions with the highest fertility with possible consequences for later life health. They also show a different trend compared with high-income regions, confirming a lack of generalisability and the importance of accounting for nutritional and health transitions at the local level. This study calls for further data and research on menopause on a global scale.

Environmental attitudes and fertility desires among US adolescents from 2005-2019

Objective

This Brief Report examines links between environmental attitudes and fertility desires over time in the U.S.

Background

To understand fertility decision making, it is important to identify factors that influence fertility desires. Concerns about environmental problems may be associated with lower desired fertility, especially in recent cohorts transitioning to adulthood. Youth may feel that having one less child can reduce their "carbon footprint" or may be unwilling to bring children into an uncertain and difficult future due to climate change.

Method

Data are from 12th graders in the Monitoring the Future Study (2005-2019; N=34,104). Regression is used to examine the relationship between number of children wanted and agreement that the government should deal with environmental problems even if it means paying more taxes.

Results

Those who endorsed that government should deal with environmental problems reported lower average fertility desires than those who did not. The association was driven by a decreased desire for large families (four or more children) rather than normatively sized families (two-three children). Political identity and religiosity attenuated but did not explain the association. There was some evidence of stronger associations in 2017-2019.

Conclusion

Evidence showed associations between environmental attitudes and childbearing preferences that may have strengthened over time.

Implications

Environmental attitudes may be a factor in the recent decline in youth's fertility desires and could have consequences for future fertility.

Does Delayed Fertility Explain the Rise in Comorbidities Among the Birthing Population?

Background: The increasing prevalence of preexisting health conditions among pregnant people is often attributed to the concurrent rise in maternal age. However, the link between advanced maternal age (AMA) and increases in chronic conditions among the birthing population has not been systematically documented at the population level. Materials and Methods: This retrospective population-based cohort study was based on linked hospitalization discharge and birth certificate data for live birth deliveries in California from 1991 to 2012. Decomposition techniques evaluated whether changes in the prevalence of selected preexisting health conditions during delivery (autoimmune conditions, chronic hypertension, cardiac disease, diabetes, and renal disease) were explained by population-level increases in maternal age. Analyses further adjusted for maternal education, plurality, insurance status, and availability of paternal information on the birth certificate. Results: Between 1991 and 2012, there were more than 11.5 million live birth deliveries in California. AMA (≥35 years) increased nearly 70% over this period. The prevalence of autoimmune conditions, chronic hypertension, diabetes, and renal disease rose among the birthing population, while cardiac disease declined. The prevalence of all conditions was higher for AMA, but changes in maternal age accounted for only 5.3%, 8.4%, 13.9%, and 0.4%, of the increase in autoimmune conditions, chronic hypertension, diabetes, and renal disease, respectively. Conclusion: While AMA was associated with higher rates of preexisting health conditions, it contributed little to the increase in autoimmune conditions, chronic hypertension, and diabetes and nothing to the rise in renal disease during childbirth.

Characteristics Associated with Reliability in Reporting of Contraceptive Use: Assessing the Reliability of the Contraceptive Calendar in Seven Countries

Although the reproductive calendar is the primary tool for measuring contraceptive dynamics in low-income settings, the reliability of calendar data has seldom been evaluated, primarily due to the lack of longitudinal panel data. In this research, we evaluated the reproductive calendar using data from the Performance Monitoring for Action Project. We used population-based longitudinal data from nine settings in seven countries: Burkina Faso, Nigeria (Kano and Lagos States), Democratic Republic of Congo (Kinshasa and Kongo Central Provinces), Kenya, Uganda, Cote d'Ivoire, and India. To evaluate reliability, we compared the baseline cross-sectional report of contraceptive use (overall and by contraceptive method), nonuse, or pregnancy with the retrospective reproductive calendar entry for the corresponding month, measured at follow-up. We use multivariable regressions to identify characteristics associated with reliability or reporting. Overall, we find that the reliability of the calendar is in the "moderate/substantial" range for nearly all geographies and tests (Kappa statistics between 0.58 and 0.81). Measures of the complexity of the calendar (number of contraceptive use episodes, using the long-acting method at baseline) are associated with reliability. We also find that women who were using contraception without their partners/husband's knowledge (i.e., covertly) were less likely to report reliably in several countries.

Pregnancy intentions' relationship with infant, pregnancy, maternal, and early childhood outcomes: Evidence from births in Alaska, Missouri, and Oklahoma

OBJECTIVES

Much of reproductive health care policy in the United States focuses on enabling women to have intended pregnancies. Investigating whether the association between pregnancy intention and adverse outcomes for mothers and children in the immediate and longer term is due to intention or a mother's demographics provides valuable context for policy makers aiming to improve maternal and child outcomes.

METHODS

We investigated relationships between pregnancy intention and pregnancy, infant, early childhood, and maternal outcomes using data from the Pregnancy Risk Assessment Monitoring System survey, conducted 2-8 months after the child's birth, and follow-up surveys from three states (Alaska, Missouri, and Oklahoma), administered at age 2-3 years old. We used logistic regressions with inverse propensity weights to measure associations, accounting for potential confounding factors.

RESULTS

After inverse propensity weighting, pregnancy intention was associated with adverse maternal pregnancy behaviors but not most infant outcomes. Mothers who reported an unwanted pregnancy were associated with increased odds of the child receiving a developmental delay diagnosis. Among those who did not report depression prior to pregnancy, mothers with unwanted pregnancies were more likely to experience persistent depression, and mothers with pregnancies mistimed by two or more years had a higher likelihood of experiencing depression postpartum or in the follow up period.

CONCLUSIONS

Our findings suggest that pregnancy intention is less consequential for maternal and child well-being than socio-economic disadvantage, suggesting that re-orienting policy toward social conditions and reproductive autonomy will serve better individual and population health.

Selection in utero against male twins in the United States early in the COVID-19 pandemic

OBJECTIVES

We aim to contribute to the literature reporting tests of selection in utero. The theory of reproductive suppression predicts that natural selection would conserve mechanisms, referred to collectively as selection in utero, that spontaneously abort fetuses unlikely to thrive as infants in the prevailing environment. Tests of this prediction include reports that women give birth to fewer than expected male twins, historically among the frailest of infants, during stressful times. The onset of the COVID-19 pandemic in the United States in Spring 2020 demonstrably stressed the population. We test the hypothesis that conception cohorts in gestation at the onset of the pandemic in the United States yielded fewer than expected live male twin births.

METHODS

We retrieved deidentified data on the universe of live births in the United States from the National Center for Health Statistics birth certificate records. We applied Box-Jenkins time-series methods to the twin secondary sex ratio computed for 77 monthly conception cohorts spanning August 2013 to December 2019 to detect outlying cohorts in gestation at the onset of the pandemic.

RESULTS

The twin secondary sex ratio fell below expected values in three conception cohorts (i.e., July, September, and October 2019, all p < .05) exposed in utero to the onset of the pandemic.

CONCLUSIONS

Our results add to prior findings consistent with selection in utero. The role of selection in utero in shaping the characteristics of live births cohorts, especially during the COVID-19 pandemic, warrants further scrutiny.

Severe Maternal Morbidity and Mortality in Sickle Cell Disease in the National Inpatient Sample, 2012-2018

IMPORTANCE

Pregnancy outcomes are historically poor among people with sickle cell disease (SCD) in the US, most of whom have Black race. Whether outcomes have improved is unknown.

OBJECTIVE

To tabulate adverse pregnancy outcomes among patients with SCD, comparing outcomes of deliveries among Black people with SCD with those of Black people without SCD and a control non-Black population, and to measure the association of racial disparities with adverse outcomes in SCD pregnancies.

DESIGN, SETTING, AND PARTICIPANTS

This cross-sectional study was a secondary analysis involving data from National Inpatient Sample, a nationally representative sample of 20% of acute hospital admissions in the US, between 2012 and 2018. The data set included all admissions with codes for delivery of a pregnancy among people aged 11 to 55 years. Data were analyzed from September 2021 to August 2022.

EXPOSURES

SCD, racial disparities.

MAIN OUTCOMES AND MEASURES

Severe maternal morbidity (SMM) as measured by the US Centers for Disease Control and Prevention's index alongside other outcomes; multiple logistic regression was used to compare the odds for adverse pregnancy outcomes.

RESULTS

The sample included 5 401 899 deliveries, including 3901 deliveries among people with SCD and 742 164 deliveries among people with Black race. Compared with the non-Black control group, patients with SCD and Black patients were younger (mean [SD] age: SCD, 27.2 [5.9] years; Black, 27.1 [6.1] years vs 28.7 [5.9] years) and more likely to have public insurance (SCD, 2609 deliveries [67.3%]; Black, 496 828 deliveries [65.4%] vs 1 880 198 deliveries [40.8%]). The maternal mortality rate in deliveries among people with SCD was 26 times greater than in the non-Black control group and more than 10 times greater than among Black pregnant people without SCD (Per 10 000 deliveries: SCD 13.3; 95% CI, 5.7-31.2; Black race, 1.2; 95% CI, 1.0-1.5; non-Black control 0.5; 95% CI, 0.5-0.6). Compared with the control group, SCD deliveries had higher odds of SMM (adjusted odds ratio [aOR], 7.22; 95% CI, 6.25-8.34; P < .001), especially cerebrovascular events (aOR, 22.00; 95% CI, 15.25-31.72; P < .001) and thromboembolism (aOR, 17.34; 95% CI, 11.55-26.03; P < .001). Racial disparities explained a median (IQR) 28.9% (21.2%-33.1%) of the increased risk in deliveries to people with SCD and between 40% and 50% of the increased risk for acute kidney failure (excess risk [ER], 56.9%; 95% CI, 54.3%-59.3%), intrauterine fetal demise (ER, 47.8%; 95% CI, 46.6%-49.1%), and eclampsia (ER, 42.1%; 95% CI, 37.9%-46.1%).

CONCLUSIONS AND RELEVANCE

In this large cross-sectional study of pregnancy outcomes in people with SCD, the risk for SMM was higher compared with deliveries among people without SCD, especially for thrombotic events, organ failure, and death. Racial disparities were associated with adverse outcomes. Our findings compel scientific, clinical, and political effort to improve outcomes for pregnant people with SCD.

Stop or Switch: Correlates of Stopping Use or Switching Contraceptive Methods While Wanting to Avoid Pregnancy in 48 Low- and Middle-Income Countries

Contraceptive discontinuation for method-related reasons, while presumably wanting to avoid pregnancy, is a common phenomenon and can contribute to high levels of unmet need and unplanned pregnancies. Some women discontinue contraceptive use and do not quickly resume a method ("stopping"), while others are able to quickly switch to another method to achieve their reproductive goal of avoiding pregnancy ("switching"). We use Demographic and Health Survey data from 48 countries to examine what differentiates women who were able to switch to another method versus those who ultimately stopped entirely, among women who discontinued contraception for method-related reasons. Results show that wanting to limit births, having ever been married, and recent prior use are all associated with switching versus stopping. In addition, we find that women in West and Middle Africa were more likely to stop use compared to women in other regions. Addressing obstacles to contraceptive continuation, including effective method switching, among women who wish to delay or avoid pregnancy should be a priority for global and country initiatives aiming to deliver client-centered care that supports women and couples to make their best family planning choices.

Comparisons of Severe Maternal Morbidity and Other Adverse Pregnancy Outcomes in Pregnant People With Sickle Cell Disease vs Anemia

IMPORTANCE

Pregnancy in sickle cell disease (SCD) is high risk, but whether prenatal anemia, which is treatable with red blood cell transfusions, is a mediator associated with adverse pregnancy outcomes (APOs) is not known.

OBJECTIVE

To compare rates and odds of severe maternal morbidity (SMM) and other APOs in pregnancies among individuals with SCD vs those without SCD but with prenatal anemia.

DESIGN, SETTING, AND PARTICIPANTS

This cross-sectional study was conducted using data from 2012 to 2018 from the National Inpatient Sample, a nationally representative sample of 20% of acute hospital admissions in the United States. All admissions with codes for delivery of a pregnancy among people aged 11 to 55 years were included. Only admissions coded with Black race were included. Data were analyzed from September 2021 through August 2022.

EXPOSURES

Prenatal anemia and SCD.

MAIN OUTCOMES AND MEASURES

SMM was tabulated per the Center for Disease Control and Prevention SMM Index alongside other APOs. Multiple logistic regression was used to compare the odds for APOs and risk ratios (RRs) to compare rates of APOs.

RESULTS

Among 764 455 total delivery admissions among patients identified as Black (mean [SD] age at delivery, 27.00 [6.08] years), 3200 deliveries were coded with maternal SCD, 34 808 deliveries were coded with maternal anemia, and 726 447 deliveries were control. Most patients were publicly insured (499 060 [65.4%]). For most outcomes, including SMM and mortality per 10 000 deliveries, the SCD group had higher rates (SMM: 5.9%; 95% CI, 5.1%-6.8%; maternal mortality: 13.0 deaths; 95% CI, 4.9 to 35.0 deaths) than anemia (SMM: 2.1%; 95% CI, 2.0%-2.3%; maternal mortality: 0.9 deaths; 95% CI, 0.3 to 2.8 deaths) or control groups (SMM: 1.1%; 95% CI, 1.0%-1.1%; maternal mortality: 1.2 deaths; 95% CI, 1.0 to 1.5 deaths). SCD (adjusted odds ratio [aOR], 5.51; 95% CI, 4.71-6.45) and anemia groups (aOR, 2.00; 95% CI, 1.84-2.17) had higher adjusted odds of SMM compared with the control group. However, for many complications associated with ischemia or abnormal placentation, CIs of aORs for SCD and anemia groups overlapped (eg, eclampsia: aOR, 2.74; 95% CI, 1.51-4.96 vs aOR, 1.40; 95% CI, 1.08-1.81). For these complications, RRs for SCD vs anemia were between 1.0 and 2.1 (eg, eclampsia: 1.76; 95% CI, 0.93-3.32). For complications associated with thrombosis or SCD-specific pathologies, rates and aORs were greater for the SCD vs anemia group. For these complications, RRs were between 3.70 and 10.90. For example, rates of acute respiratory distress syndrome, including acute chest syndrome, were 56 of 3144 deliveries (1.8%) vs 122 of 34 686 deliveries (0.4%), and the RR was 4.99 (95% CI, 3.65-6.84).

CONCLUSIONS AND RELEVANCE

This study found that risks associated with prenatal anemia and SCD were similar for many APOs, especially those associated with ischemia and abnormal placentation, suggesting that prenatal anemia may be a mediator associated with pregnancy risk in individuals with SCD.

Exposure to the early COVID-19 pandemic and early, moderate and overall preterm births in the United States: A conception cohort approach

BACKGROUND

The United States (US) data suggest fewer-than-expected preterm births in 2020, but no study has examined the impact of exposure to the early COVID-19 pandemic at different points in gestation on preterm birth.

OBJECTIVE

Our objective was to determine-among cohorts exposed to the early COVID-19 pandemic-whether observed counts of overall, early and moderately preterm birth fell outside the expected range.

METHODS

We used de-identified, cross-sectional, national birth certificate data from 2014 to 2020. We used month and year of birth and gestational age to estimate month of conception for birth. We calculated the count of overall (<37 weeks gestation), early (<33 weeks gestation) and moderately (33 to <37 weeks gestation) preterm birth by month of conception. We employed time series methods to estimate expected counts of preterm birth for exposed conception cohorts and identified cohorts for whom the observed counts of preterm birth fell outside the 95% detection interval of the expected value.

RESULTS

Among the 23,731,146 births in our study, the mean prevalence of preterm birth among monthly conception cohorts was 9.7 per 100 live births. Gestations conceived in July, August or December of 2019-that is exposed to the early COVID-19 pandemic in the first or third trimester-yielded approximately 3245 fewer moderately preterm and 3627 fewer overall preterm births than the expected values for moderate and overall preterm. Gestations conceived in August and October of 2019-that is exposed to the early COVID-19 pandemic in the late second to third trimester-produced approximately 498 fewer early preterm births than the expected count for early preterm.

CONCLUSIONS

Exposure to the early COVID-19 pandemic may have promoted longer gestation among close-to-term pregnancies, reduced risk of later preterm delivery among gestations exposed in the first trimester or induced selective loss of gestations.

Changes in Pregnancy-Associated Deaths in the US During the COVID-19 Pandemic in 2020

This cross-sectional study assesses changes in pregnancy-associated mortality from drug overdose, homicide, suicide, and other causes in the US from 2018 through 2020.

Expectations of non-COVID-19 deaths during the pre-vaccine pandemic: a process-control approach

BACKGROUND

Debate over "social distancing" as a response to the pandemic includes the claim that disrupting clinical and public health programming dependent on human-to-human contact increased non-COVID-19 deaths. This claim warrants testing because novel pathogens will continue to emerge. Tests, however, appear frustrated by lack of a convention for estimating non-COVID-19 deaths that would have occurred had clinical and public health programming during the pre-vaccine pandemic remained as efficacious as in the pre-pandemic era. Intending to hasten the emergence of such a convention, we describe and demonstrate "new-signal, prior-response expectations" suggested by research and methods at the intersection of epidemiology and process control engineering.

METHODS

Using German data, we estimate pre-pandemic public health efficacy by applying Box-Jenkins methods to 271 weekly counts of all-cause deaths from December 29 2014 through March 8 2020. We devise new-signal, prior-response expectations by applying the model to weekly non-COVID-19 deaths from March 9 2020 through December 26 2020.

RESULTS

The COVID-19 pandemic did not coincide with more non-COVID-19 deaths than expected from the efficacy of responses to pre-pandemic all-cause deaths.

CONCLUSIONS

New-signal, prior-response estimates can contribute to evaluating the efficacy of public health programming in reducing non-COVID-19 deaths during the pre-vaccine pandemic.

"If I use family planning, I may have trouble getting pregnant next time I want to": A multicountry survey-based exploration of perceived contraceptive-induced fertility impairment and its relationship to contraceptive behaviors

Objectives

We aim to assess women's perceptions regarding contraceptive effects on fertility across a diversity of settings in sub-Saharan Africa and how they vary by women's characteristics. We also aim to examine how such beliefs relate to women's contraceptive practices and intentions.

Study design

This study uses cross-sectional survey data among women aged 15 to 49 in nine sub-Saharan African geographies from the Performance Monitoring for Action project. Our main measure of interest assessed women's perceptions of contraceptive-induced fertility impairment. We examined factors related to this belief and explored the association between perceptions of contraceptive-induced fertility impairment and use of medicalized contraception (intrauterine device, implant, injectable, pills, emergency contraception) and intention to use contraception (among nonusers).

Results

Between 20% and 40% of women across study sites agreed or strongly agreed that contraception would lead to later difficulties becoming pregnant. Women at risk of an unintended pregnancy who believed contraception could cause fertility impairment had reduced odds of using medicalized contraception in five sites; aORs ranged from 0.07 to 0.62. Likewise, contraceptive nonusers who wanted a/another child and perceived contraception could cause fertility impairment were less likely to intend to use contraception in seven sites, with aORs between 0.34 and 0.66.

Conclusions

Our multicountry study findings indicate women's perception of contraceptive-induced fertility impairment is common across diverse sub-Saharan African settings, likely acting as a deterrent to using medicalized contraceptive methods.

Implications

Findings from this study can help improve reproductive health programs by addressing concerns about contraception to help women achieve their reproductive goals.

Investigating the impact of structural racism on black birthing people - associations between racialized economic segregation, incarceration inequality, and severe maternal morbidity

Black birthing people are twice as likely to experience severe maternal morbidity (SMM) as their white counterparts. Structural racism provides a framework for understanding root causes of perinatal health disparities. Our objective was to investigate associations between measures of structural racism and severe maternal morbidity (SMM) among Black birthing people in the US. We linked delivery hospitalizations for Black birthing people in the National Inpatient Sample (2008-2011) with data from the American Community Survey 5-year estimates and the Vera Institute of Justice Incarceration Trends datasets (2008-2011). Structural racism measures included the Index of Concentration at the Extremes for race and income (i.e., racialized economic segregation) and Black-white incarceration inequality, assessed as quintiles by hospital county. Multilevel logistic regression assessed the relationship between these county-level indicators of structural racism and SMM. Black birthing people delivering in quintiles 5 (concentrated deprivation; OR = 1.45, 95% CI = 1.16-1.81) and 3 (OR = 1.27, 95% CI = 1.04-1.56) experienced increased odds of SMM compared to those in quintile 1 (concentrated privilege). After adjusting for individual characteristics, obstetric comorbidities, and hospital characteristics the odds of SMM remained elevated for Black birthing people delivering in quintiles 5 (aOR = 1.32, 95% CI = 1.02-1.71) and 3 (aOR = 1.24, 95% CI = 1.02-1.51). Delivering in the quintile with the highest incarceration inequality (Q5) was not significantly associated with SMM (aOR = 0.95, 95% CI = 0.72-1.25) compared to those delivering in counties with the lowest incarceration inequality (Q1). In this national-level study, racialized economic segregation was associated with SMM among Black birthing people. Our findings highlight the need to promote maternal and perinatal health equity through actionable policies that prioritize investment in communities experiencing deprivation.

Postpartum Care Visit Attendance Within 60 Days of Delivery Among Women With and Without Opioid Use During Pregnancy: An Analysis of Commercial Insurance Data

BACKGROUND

Postpartum care (PPC) is a key component of maternal health, particularly for people who use opioids during pregnancy. Little is known about the prevalence and correlates of PPC visit attendance among those using opioids compared with nonusers in a privately insured population.

METHODS

A retrospective cohort study was conducted using nationwide private insurance claims between 2011 and 2017 (N = 1,291,352 women) comparing the following opioid use groups: nonusers, nonchronic prescription users, chronic prescription users, and women with opioid use disorder (OUD). Multivariable logistic and linear regressions evaluated the odds of PPC attendance and the mean time to an initial PPC visit for each user group. Stratified models identified factors associated with PPC attendance by opioid use type.

RESULTS

Overall, 45% of the cohort attended a PPC visit and nearly 10% had any opioid use during pregnancy. More women in the three opioid use categories attended PPC than nonusers (50-56% vs. 45%). Opioid use regardless of type was associated with higher odds and earlier PPC visitation than women with no opioid use; nonchronic and chronic users had 17% and 40% greater odds of PPC than nonusers (adjusted odds ratio [aOR]: 1.17; 95% confidence interval [CI]: 1.16-1.19; aOR: 1.40, 95% CI: 1.34-1.46), whereas women with OUD had 7% higher odds (aOR: 1.07; 95% CI: 1.00-1.13). Antenatal care and psychiatric, hypertensive, and pain conditions were most strongly associated with higher odds of attending PPC; older maternal age was negatively associated with PPC. Stratified analysis showed opioid correlates varied similarly across user groups.

CONCLUSIONS

PPC use was generally low in this study cohort of privately insured women. Women who used opioids and those with chronic conditions had greater odds of attending PPC. Improved efforts are needed to engage people in PPC, as well as service integration and coordination for people who use opioids during pregnancy.

Sons and parental cognition in mid-life and older adulthood

Prior research suggests a relationship between number of sons and maternal long-term health outcomes, including dementia. We assessed the relationship between having sons and parental cognitive aging. Specifically, we investigated the relationship between having at least 1 son and parental baseline cognition level and rate of cognitive decline, accounting for life course sociodemographic characteristics in a cohort of 13 222 adults aged ≥50 years from the US Health and Retirement Study. We included only participants with at least one child. We further explored whether this relationship varies by parental sex and whether the magnitude of the relationship increases with each additional son. Cognition was assessed biennially for a maximum of nine times as a sum of scores from immediate and delayed 10-noun free recall tests, a serial 7s subtraction test, and a backwards counting test. Associations were evaluated using linear mixed-effects models, stepwise adjusting for sociodemographic and health-related factors. In our analytic sample of parents, a total of 82.3% of respondents had at least 1 son and 61.6% of respondents were female. Parents of at least 1 son had a faster rate of cognitive decline in comparison to parents without any son. Our results also suggest that cognitive decline was faster among parents of multiple sons, compared to parents with only daughters. Thus, the results support the theory that having sons might have a long-term negative effect on parental cognition.

Unequal impacts of the COVID-19 pandemic on women's fertility preferences: Evidence from a longitudinal cohort in the United States

•The COVID-19 pandemic suppressed fertility desires among US women.•Impacts on fertility preferences persisted from summer 2020 to early 2021.•The fertility preferences of younger women, women of color and those facing financial stress were most impacted.

The 2016 Presidential Election and Prenatal Care Utilization Among Foreign-born Hispanic Pregnant People

BACKGROUND

Few studies have evaluated the relationship between adequate and timely prenatal care among immigrant pregnant people and the recent political climate, including the 2016 election and associated campaigns.

OBJECTIVES

We examine whether the 2016 presidential election was associated with changes in prenatal care utilization among US foreign-born Hispanic pregnant people.

RESEARCH DESIGN

Interrupted time series.

SUBJECTS

All foreign-born Hispanic and US-born non-Hispanic White people delivering singleton infants from 2008 to 2017 who resided in the 23 states that fully implemented the 2003 version of the birth certificate before January 2008 (n=12,397,503).

MEASURES

We examine the relationship between the presidential election and changes in the odds of inadequate or late/no prenatal care among immigrant Hispanic pregnant people, as well as trends in prenatal care utilization before the election.

RESULTS

Our results show no unexpected changes in receipt of inadequate prenatal care, and late/no prenatal care, among the 7 monthly conception cohorts exposed to the election before the third trimester. However, we detected increases in the odds of both inadequate care and late/no prenatal care among foreign-born Hispanic pregnant people in June 2015 and January 2016, respectively. These upward level shifts persisted through the remainder of our time series ending with the cohort conceived around December 2016.

CONCLUSIONS

The worsening shifts in prenatal care utilization we observe may serve as a bellwether for worsening outcomes among immigrant women and their families. Research is therefore urgently needed to investigate the determinants and consequences of these concerning trends.

A Latent Class Analysis: Identifying Pregnancy Intention Classes Among U.S. Adolescents

PURPOSE

Few studies have captured the multidimensionality of pregnancy intentions for adolescents on a national level, particularly missing the perspectives of male adolescents. Therefore, this study aimed to identify and describe pregnancy intention profiles among U.S. adolescents.

METHODS

Latent class analysis was conducted using data from two cycles of the National Survey of Family Growth (2015-2017 and 2017-2019) among U.S. adolescents 15-19 years old (N = 3,812). Stratified by sex, six National Survey of Family Growth indicators around desires, feeling, timing, and social acceptability were included. Multinomial logistic regression was used to identify the correlates of class membership.

RESULTS

Three latent classes of pregnancy intention were identified for each sex, which were distinguished by immediate and future desires, feelings, timing, and social acceptability. For both females and males, Delayed Pro-pregnancy (53% vs. 82%) and Near Pro-pregnancy (28% vs. 8%) were identified. Ambivalent-pregnancy (14%) and Anti-pregnancy (10%) were specific to females and males, respectively. Near Pro-pregnancy females and Anti-pregnancy males were more likely to be sexually active, older, of Hispanic descent, report receiving public assistance, and have a teen mother than adolescents classified as Delayed Pro-pregnancy. Females with a pregnancy history were more likely to be classified as Ambivalent than Delayed Pro-pregnancy.

DISCUSSION

While most adolescents intend to delay or avoid childbearing, there are subsets of adolescents whose pregnancy intentions are in favor of early childbearing, which is often dismissed in adolescent sexual and reproductive health. Current efforts can use these distinct pregnancy intention classes to tailor sexual and reproductive health services specifically for diverse adolescent populations.

Changes in preterm birth and caesarean deliveries in the United States during the SARS-CoV-2 pandemic

BACKGROUND

Preliminary studies suggest that the SARS-CoV-2 pandemic and associated social, economic and clinical disruptions have affected pregnancy decision-making and outcomes. Whilst a few US-based studies have examined regional changes in birth outcomes during the pandemic's first months, much remains unknown of how the pandemic impacted perinatal health indicators at the national-level throughout 2020, including during the 'second wave' of infections that occurred later in the year.

OBJECTIVES

To describe changes in monthly rates of perinatal health indicators during the 2020 pandemic for the entire US.

METHODS

For the years 2015 to 2020, we obtained national monthly rates (per 100 births) for four perinatal indicators: preterm (<37 weeks' gestation), early preterm (<34 weeks' gestation), late preterm (34-36 weeks' gestation) and caesarean delivery. We used an interrupted time-series approach to compare the outcomes observed after the pandemic began (March 2020) to those expected had the pandemic not occurred for March through December of 2020.

RESULTS

Observed rates of preterm birth fell below expectation across several months of the 2020 pandemic. These declines were largest in magnitude in early and late 2020, with a 5%-6% relative difference between observed and expected occurring in March and November. For example, in March 2020, the observed preterm birth rate of 9.8 per 100 live births fell below the 95% prediction interval (PI) of the rate predicted from history, which was 10.5 preterm births per 100 live births (95% PI 10.2, 10.7). We detected no changes from expectation in the rate of caesarean deliveries.

CONCLUSIONS

Our findings provide nationwide evidence of unexpected reductions in preterm delivery during the 2020 SARS-CoV-2 pandemic in the US. Observed declines below expectation were differed by both timing of delivery and birth month, suggesting that several mechanisms, which require further study, may explain these patterns.

Estimating misclassification errors in the reporting of maternal mortality in national civil registration vital statistics systems: A Bayesian hierarchical bivariate random walk model to estimate sensitivity and specificity for multiple countries and years with missing data

Civil registration vital statistics (CRVS) systems provide data on maternal mortality that can be used for monitoring trends and to inform policies and programs. However, CRVS maternal mortality data may be subject to substantial reporting errors due to misclassification of maternal deaths. Information on misclassification is available for selected countries and periods only. We developed a Bayesian hierarchical bivariate random walk model to estimate sensitivity and specificity for multiple populations and years and used the model to estimate misclassification errors in the reporting of maternal mortality in CRVS systems. The proposed Bayesian misclassification (BMis) model captures differences in sensitivity and specificity across populations and over time, allows for extrapolations to periods with missing data, and includes an exact likelihood function for data provided in aggregated form. Validation exercises using maternal mortality data suggest that BMis is reasonably well calibrated and improves upon the CRVS-adjustment approach used until 2018 by the UN Maternal Mortality Inter-Agency Group (UN-MMEIG) to account for bias in CRVS data resulting from misclassification error. Since 2019, BMis is used by the UN-MMEIG to account for misclassification errors when estimating maternal mortality using CRVS data.

Perceptions of Partners' Fertility Preferences and Women's Covert Contraceptive Use in Eight sub-Saharan African Countries

Covert use of contraception is a common but underreported and understudied phenomenon where one partner uses contraception without the other's knowledge. We used Demographic and Health Survey couple data to examine the relationship between wives’ perceptions of husbands’ fertility preferences and type of contraceptive use (overt vs. covert) in Benin, Ethiopia, Kenya, Mali, Nigeria, Sierra Leone, Uganda, and Zambia using logistic regression. Wives who perceived that their husbands wanted more children than them had increased odds of using covertly, compared to those who perceived that husbands wanted the same number of children in all countries except Benin, and the strength of the relationships ranged from adjusted odds ratio (aOR) 2.89 (95 percent confidence interval (CI) 1.75–4.76) in Zambia to aOR 4.01 (95 percent CI 1.68–9.58) in Mali. Wives who reported not knowing their husbands’ fertility preferences had increased odds of using covertly compared to wives who perceived that their husbands wanted the same number of children in all countries except Zambia, ranging from aOR 2.02 (95 percent CI 1.11–3.69) in Ethiopia to aOR 3.82 (95 percent CI 2.29–6.37) in Kenya. Our findings indicate that efforts to increase partner engagement to align couple's fertility preferences may encourage overt use.

Patterned Outcomes, Unpatterned Counterfactuals, and Spurious Results: Perinatal Health Outcomes Following COVID-19

The epidemiologic literature estimating the indirect or secondary effects of the coronavirus disease 2019 (COVID-19) pandemic on pregnant people and gestation continues to grow. Our assessment of this scholarship, however, leads us to suspect that the methods most commonly used may lead researchers to spurious inferences. This suspicion arises because the methods do not account for temporal patterning in perinatal outcomes when deriving counterfactuals, or estimates of the outcomes had the pandemic not occurred. We illustrate the problem in 2 ways. First, using monthly data from US birth certificates, we describe temporal patterning in 5 commonly used perinatal outcomes. Notably, for all but 1 outcome, temporal patterns appear more complex than much of the emerging literature assumes. Second, using data from France, we show that using counterfactuals that ignore this complexity produces spurious results. We recommend that subsequent investigations on COVID-19 and other perturbations use widely available time-series methods to derive counterfactuals that account for strong temporal patterning in perinatal outcomes.

Mortality Rates Among U.S. Women of Reproductive Age, 1999-2019

INTRODUCTION

High and increasing levels of pregnancy-related mortality and morbidity in the U.S. indicate that the underlying health status of reproductive-aged women may be far from optimal, yet few studies have examined mortality trends and disparities exclusively among this population.

METHODS

All-cause and cause-specific mortality data for 1999-2019 were obtained from the Centers for Disease Control and Prevention WONDER Underlying Cause of Death database. Levels and trends in mortality between 1999 and 2019 for women aged 15-44 years stratified by age, race/ethnicity, and state were examined. Given the urgent need to address pregnancy-related health disparities, the correlation between all-cause and pregnancy-related mortality rates across states for the years 2015-2019 was also examined.

RESULTS

Age-adjusted, all-cause mortality rates among women aged 15-44 years improved between 2003 and 2011 but worsened between 2011 and 2019. The recent increase in mortality among this age group was not driven solely by increases in external causes of death. Patterns differed by age, race/ethnicity, and geography, with non-Hispanic American Indian and Alaskan Native women having 2.3 and non-Hispanic Black women having 1.4 times the risk of all-cause mortality in 2019 compared with that of non-Hispanic White women. Age-adjusted all-cause mortality rates and pregnancy-related mortality rates were strongly correlated at the state level (r=0.75).

CONCLUSIONS

Increasing mortality among reproductive-aged women has substantial implications for maternal, women's, and children's health. Given the high correlation between pregnancy-related mortality and all-cause mortality at the state level, addressing the structural factors that shape mortality risks may have the greatest likelihood of improving women's health outcomes across the life course.

Estimated impact of the 2020 economic downturn on under-5 mortality for 129 countries

In low- and middle-income countries (LMICs), economic downturns can lead to increased child mortality by affecting dietary, environmental, and care-seeking factors. This study estimates the potential loss of life in children under five years old attributable to economic downturns in 2020. We used a multi-level, mixed effects model to estimate the relationship between gross domestic product (GDP) per capita and under-5 mortality rates (U5MRs) specific to each of 129 LMICs. Public data were retrieved from the World Bank World Development Indicators database and the United Nations World Populations Prospects estimates for the years 1990-2020. Country-specific regression coefficients on the relationship between child mortality and GDP were used to estimate the impact on U5MR of reductions in GDP per capita of 5%, 10%, and 15%. A 5% reduction in GDP per capita in 2020 was estimated to cause an additional 282,996 deaths in children under 5 in 2020. At 10% and 15%, recessions led to higher losses of under-5 lives, increasing to 585,802 and 911,026 additional deaths, respectively. Nearly half of all the potential under-5 lives lost in LMICs were estimated to occur in Sub-Saharan Africa. Because most of these deaths will likely be due to nutrition and environmental factors amenable to intervention, countries should ensure continued investments in food supplementation, growth monitoring, and comprehensive primary health care to mitigate potential burdens.