Association Between Medicaid Expansion And Closure Of Hospital-Based Obstetric Services

Navigating geographical disparities: access to obstetric hospitals in maternity care deserts and across the United States

BACKGROUND

Access to maternity care in the U.S. remains inequitable, impacting over two million women in maternity care "deserts." Living in these areas, exacerbated by hospital closures and workforce shortages, heightens the risks of pregnancy-related complications, particularly in rural regions. This study investigates travel distances and time to obstetric hospitals, emphasizing disparities faced by those in maternity care deserts and rural areas, while also exploring variances across races and ethnicities.

METHODS

The research adopted a retrospective secondary data analysis, utilizing the American Hospital Association and Centers for Medicaid and Medicare Provider of Services Files to classify obstetric hospitals. The study population included census tract estimates of birthing individuals sourced from the U.S. Census Bureau's 2017-2021 American Community Survey. Using ArcGIS Pro Network Analyst, drive time and distance calculations to the nearest obstetric hospital were conducted. Furthermore, Hot Spot Analysis was employed to identify areas displaying significant spatial clusters of high and low travel distances.

RESULTS

The mean travel distance and time to the nearest obstetric facility was 8.3 miles and 14.1 minutes. The mean travel distance for maternity care deserts and rural counties was 28.1 and 17.3 miles, respectively. While birthing people living in rural maternity care deserts had the highest average travel distance overall (33.4 miles), those living in urban maternity care deserts also experienced inequities in travel distance (25.0 miles). States with hotspots indicating significantly higher travel distances included: Montana, North Dakota, South Dakota, and Nebraska. Census tracts where the predominant race is American Indian/Alaska Native (AIAN) had the highest travel distance and time compared to those of all other predominant races/ethnicities.

CONCLUSIONS

Our study revealed significant disparities in obstetric hospital access, especially affecting birthing individuals in maternity care deserts, rural counties, and communities predominantly composed of AIAN individuals, resulting in extended travel distances and times. To rectify these inequities, sustained investment in the obstetric workforce and implementation of innovative programs are imperative, specifically targeting improved access in maternity care deserts as a priority area within healthcare policy and practice.

Catholic Hospital Affiliation and Postpartum Contraceptive Care and Subsequent Deliveries

Importance

In recent years, the number of Catholic hospitals has grown, raising concerns about access to contraception. The association between living in an area in which the closest hospital is Catholic and the probability of postpartum contraception and subsequent deliveries is unknown.

Objective

To assess whether living in an area in which the closest hospital was Catholic was associated with the probability of postpartum contraception and subsequent deliveries.

Design, Setting, and Participants

This cohort study used data from the Healthcare Cost and Utilization Project's State Inpatient Databases, State Emergency Department Databases, and State Ambulatory Surgery and Services Databases for 11 states (California, Florida, Georgia, Missouri, Nebraska, Nevada, New York, South Carolina, Tennessee, Vermont, and Wisconsin). Female patients with a delivery from 2016 to 2019 who lived within 20 miles of a nonfederal acute care hospital were included, with patients followed up for 1 to 3 years. Coarsened exact matching was used to match patients based on the county-level percentage of the population affiliated with Catholic churches and urbanicity, and the zip code-level number of hospitals within 5 and 20 miles, median household income, and percentage of the population by race and ethnicity. Data were analyzed from April 2022 to November 2023.

Exposures

Residence in a zip code in which the closest hospital was Catholic.

Main Outcomes and Measures

Probabilities of delivery at a Catholic hospital, surgical sterilization within 1 year of delivery, receipt of long-acting reversible contraception at delivery, and subsequent delivery within 3 years.

Results

The sample consisted of 4 101 443 deliveries (1 301 792 after matching), with 14.5% of patients living in exposed zip codes (ie, where the closest hospital was Catholic). Living in exposed zip codes was associated with a 21.26-percentage point (pp) increase in the probability of delivery at a Catholic hospital (95% CI, 19.50 to 23.02 pp; 237.3% relative to the mean in unexposed zip codes; P < .001). Additionally, comparing exposed vs unexposed zip codes, the probability of surgical sterilization at delivery decreased by 0.95 pp (95% CI, -1.14 to -0.76 pp; P < .001) and the probability of sterilization in the year after discharge further decreased by 0.21 pp (95% CI, -0.29 to -0.13; P < .001). Subsequent deliveries within 3 years increased 0.47 pp (95% CI, -0.03 to 0.97 pp; 2.3% relative to the mean in unexposed zip codes; P = .07).

Conclusions and Relevance

This cohort study finds that living in a zip code in which the closest hospital was Catholic was associated with a modest decrease in the probability of postpartum surgical sterilizations and a modest increase in the probability of subsequent deliveries.

Procedures by Physician Associates in Obstetrics and Gynecology

Background and Objectives

The number of obstetricians and gynecologists in the United States is decreasing and providers backfilling this service have not been well described. The intent of the study was to identify the skills that physician associates (PAs) in obstetrics and gynecology (OBGyn) contribute to this aspect of medicine and surgery.

Methods

A survey of PAs specializing in OBGyn was conducted in 2022. The intent was to list office-based procedures that were part of their skill set. A vetted questionnaire was sent to the 1,630 American Academy of Physician Associates members who identified themselves in OBGyn at some point in their career, and 729 responded (44.7% relative risk).

Results

Most PAs (88.7%) in OBGyn first assist in surgery. This first-assist role ranged across the open, laparoscopic, and robotic-type operations. Categories of surgery included Cesarean section, hysterectomy, salpingo-oophorectomy, and subspecialty surgeries such as oncology and urogynecology. In the outpatient setting, PAs listed over 40 procedures ranging from biopsies of the endometrium, cervix, vagina, and vulva, as well as fetal assessment, ultrasonography, and long-acting contraceptive insertion and removals.

Conclusions

The proceduralist role of PAs in OBGyn is broad. Furthermore, this role may need to be utilized more at a time of growing scarcity of clinicians. The OBGyn role for PAs adds to their specialization and increasing presence in American medicine.

CNM/CMs Fill the Gap in Rural Maternal Care

The United States is in the midst of a maternity care crisis. A key driver is workforce shortages, which impacts maternity care service delivery in rural areas significantly. The midwifery model of care remains underutilized. Midwifery care delivered by certified nurse-midwives and certified midwives is heavily endorsed and supported in the extant literature, but no firm national actions have been taken to move recommendations into funding or practice. Certified nurse-midwives and Certified Midwives are able to care for low-risk pregnancies and are uniquely situated to address factors associated with social determinants of health in rural areas. One of the solutions to the rural maternity care crisis is scaling up the midwifery workforce. Individual, institutional, state, and federal factors are discussed.