Correlates of alcohol and other substance use and severe maternal morbidity

Risk of Severe Maternal Morbidity in Birthing People With Opioid Use Disorder

INTRODUCTION

We examined severe maternal morbidity (SMM) among birthing people with opioid use disorder (OUD) and evaluated the extent to which differences in SMM exist by race and ethnicity.

METHODS

We performed a retrospective cohort study using hospital discharge data for all Massachusetts births between 2016 and 2020. SMM rates for all SMM indicators, except transfusions, were computed for those diagnosed with and without OUD. Multivariable logistic regression was used to examine the association between OUD and SMM after adjusting for patient and hospital characteristics, including race and ethnicity.

RESULTS

Among 324,012 childbirths, the SMM rate was 148 (95% confidence interval [CI]. 115-189) per 10,000 childbirths among birthing people with OUD compared with 88 (95% CI, 85-91) for those without. In adjusted models, both OUD and race/ethnicity were significantly associated with SMM. Birthing people with OUD had 2.12 (95% CI, 1.64-2.75) times the odds of experiencing an SMM event compared with those without. Non-Hispanic Black and Hispanic birthing people were at 1.85 (95% CI, 1.65-2.07) and 1.26 (95% CI, 1.13-1.41) higher odds of experiencing SMM compared with non-Hispanic White birthing people. Among birthing people with OUD, the odds of SMM were not significantly different between birthing people of color and non-Hispanic White individuals.

CONCLUSIONS

Birthing people with OUD are at an elevated risk of SMM, underscoring the need for improved access to OUD treatment and increased support. Perinatal quality improvement collaboratives should measure SMM in bundles aimed at improving outcomes for birthing people with OUD.

Listen to the Whispers before They Become Screams: Addressing Black Maternal Morbidity and Mortality in the United States

Black women in the United States (U.S.) disproportionately experience adverse pregnancy outcomes, including maternal mortality, compared to women of other racial and ethnic groups. Historical legacies of institutionalized racism and bias in medicine compound this problem. The disproportionate impact of COVID-19 on communities of color may further worsen existing racial disparities in maternal morbidity and mortality. This paper discusses structural and social determinants of racial disparities with a focus on the Black maternal mortality crisis in the United States. We explore how structural racism contributes to a greater risk of adverse obstetric outcomes among Black women in the U.S. We also propose public health, healthcare systems, and community-engaged approaches to decrease racial disparities in maternal morbidity and mortality.

Differences in outpatient, emergency, and inpatient use among pregnant women with a substance-related diagnosis

BACKGROUND

As a vulnerable population, pregnant women with a substance-related diagnosis (ie, substance use, misuse, or dependence) may use healthcare disproportionately.

OBJECTIVE

The primary goal of this study was to evaluate the differences in the use of outpatient clinical visits, emergency department visits, and inpatient days in the hospital among women with and without a substance-related diagnosis during the antepartum period.

STUDY DESIGN

This retrospective study retrieved electronic health record data on women (age, 18-44 years) who delivered a single live birth or stillbirth at ≥20 weeks of gestation from April 1, 2012, to September 30, 2019. Imbalance in measured maternal sociodemographic and obstetrical characteristics between women with and without a substance-related diagnosis was attenuated using propensity score matching on key demographic characteristics (eg, age), yielding a matched 1:1 sample. Unadjusted and adjusted logistic regressions models were used to determine the association between a substance-related diagnosis and outpatient visits, emergency visits, and inpatient days.

RESULTS

From the total sample (n=16,770), the matched cohort consisted of 1986 deliveries. Of these, most were White (51.0%), or mixed or of some other race (31.1%). The mean age was 29.8 (standard deviation, 5.6). A substance-related diagnosis was identified in 993 women (50%) because of matching. Women with a substance-related diagnosis were more likely to have ≤10 outpatient visits than women without a substance-related diagnosis (adjusted odds ratio, 1.81 [95% confidence interval, 1.44-2.28]; P<.0001). Alcohol-, opioid-, and stimulant-related diagnoses were independently associated with ≤10 outpatient visits (adjusted odds ratio, 3.16 [95% confidence interval, 1.67-6.04]; P=.0005; adjusted odds ratio, 3.02 [95% confidence interval, 1.79-5.09]; P<.0001; adjusted odds ratio, 2.18 [95% confidence interval, 1.39-3.41]; P=.0007, respectively). Women with a substance-related diagnosis were more likely to have ≥1 emergency visit than women without a substance-related diagnosis (adjusted odds ratio, 1.36 [95% confidence interval, 1.00-1.85]; P<.0001). Opioid-, stimulant-, and nicotine-related diagnoses were independently associated with ≥1 emergency visit (adjusted odds ratio, 2.28 [95% confidence interval, 1.09-4.77]; P=.0287; adjusted odds ratio, 2.01 [95% confidence interval, 1.07-3.78]; P=.0301; adjusted odds ratio, 3.38 [95% confidence interval, 1.90-6.02]; P<.0001, respectively). Women with a substance-related diagnosis were more likely to have ≥3 inpatient days than women without a substance-related diagnosis (adjusted odds ratio, 1.69 [95% confidence interval, 1.07-2.67]; P=.0256). Opioid-, stimulant-, and nicotine-related diagnosis were independently associated with ≥3 inpatient days (adjusted odds ratio, 3.52 [95% confidence interval, 1.42-8.75]; P=.0067; adjusted odds ratio, 3.51 [95% confidence interval, 1.31-9.34]; P=.0123; adjusted odds ratio, 2.74 [95% confidence interval, 1.11-6.73]; P=.0285, respectively).

CONCLUSION

Women with a substance-related diagnosis during the antepartum period who delivered a single live birth or stillbirth at ≥20 weeks of gestation were experiencing fewer outpatient visits, more emergency department visits, and more inpatient days than women without a substance-related diagnosis. The type of substance-related diagnosis (eg, alcohol, opioids, stimulants, or nicotine) was associated with different patterns of healthcare use. The results from this study have reinforced the need to identify substance-related diagnoses in pregnant women early to minimize disproportionate healthcare service utilization through intervention and treatment.