Abstract
Introduction
Medicaid-funded permanent contraception (PC) procedures have been subject to a 30-day waiting period in the United States since the 1970s to protect vulnerable populations.1–4 This waiting period was introduced in response to documented abuses, such as the coercive sterilization of Mexican-American women without consent in
On July 1, 2020, West Virginia became the first state to bypass the federal 30-day waiting period for Medicaid-covered female PC. 18 Medicaid is federally funded but state-administered, giving individual states flexibility in operationalizing programs within broad federal guidelines. 18 The state continued to utilize federal funds for procedures that met federal criteria, but began using state funds to support procedures that did not. This policy change sought to promote health equity by enabling Medicaid beneficiaries to access PC at the time of childbirth, similar to those with private insurance. 19 In 2020, Medicaid financed 48% of all births in West Virginia compared to the national average of 42% based on data from the National Center for Health Statistics, 20 underscoring the potential scope of this policy’s impact.
This policy change offers a unique opportunity to evaluate the association between removal of the 30-day waiting period and the fulfillment of postpartum PC requests among Medicaid recipients. We carried out an analysis of medical record data with the primary objective of describing postpartum PC fulfillment rates among Medicaid- and non-Medicaid-insured patients who delivered at a large academic referral hospital in West Virginia and assessing whether the policy served as an effect modifier in this relationship. We hypothesized that, in 2019, Medicaid patients would exhibit lower fulfillment rates relative to non-Medicaid patients due to the existing policy barrier, and that this disparity would no longer be evident in 2021 following the policy change. In addition to testing our primary hypothesis, we had two secondary objectives: to examine reasons for non-fulfillment, as well as postpartum outcomes among individuals whose requests for PC were not fulfilled. These secondary analyses were designed to contextualize the broader systemic and clinical factors influencing access to postpartum PC and the impacts of non-fulfillment.
Methods
Study design and eligibility criteria
We conducted a retrospective cohort study of patients who delivered at ⩾20 weeks’ gestation in 2019 or 2021 at West Virginia University Hospital (WVUH), a large academic referral center operating under a closed faculty practice. A trained research assistant abstracted data from electronic medical records, including demographic and clinical information, contraceptive plan, provision of postpartum PC, reasons for non-fulfillment, and documentation of subsequent pregnancy within one year postpartum. We included inpatient and outpatient encounters. An informatics specialist retrieved insurance status directly from medical records, and a second abstractor audited 1% of records for data accuracy. The primary abstractor had employed similar methods in a prior multi-site study. 8
We excluded 2020 deliveries due to COVID-19-related suspension of “elective” surgeries and phased implementation of the policy revision.21,22 We included patients with documented PC plans during the delivery admission and included only the first birth for multiple gestations. We excluded patients who were not West Virginia residents, conceived via in vitro fertilization, or planned cesarean hysterectomy for suspected placenta accreta spectrum. We also excluded individuals under age 21 at delivery, as Medicaid does not reimburse for sterilization in this group, and those lacking complete data on key exposure and outcome variables. As this study was determined to be non-human subject research, informed consent was waived by the Institutional Review Board at the University of North Carolina (#24-1749, with West Virginia University reliance).
Outcomes and exposures
Our primary outcome was fulfillment of desired postpartum PC prior to hospital discharge. Secondary outcomes included postpartum visit attendance, fulfillment within 1 year, reasons for non-fulfillment, and subsequent pregnancy within 365 days, identified via (1) positive pregnancy tests, (2) initiation of prenatal care, or (3) external documentation of pregnancy care.
The primary exposure was insurance type at delivery, categorized as Medicaid (including fee-for-service and managed care) versus other insurance (commercial, Medicare, or state employee plans). The 2020 Medicaid policy change was the key independent variable, modeled as a binary variable (2019 vs. 2021) to assess its modifying effect. Additional covariates included maternal age, race and ethnicity, parity (<2 vs. ⩾2), gestational age, delivery mode, prenatal care adequacy via the Kotelchuck Index (adequate vs. inadequate), and BMI (<40 vs. ⩾40). 23 We included race and ethnicity as proxy measures for structural racism. 24 Due to limited diversity in the study population, we collapsed race/ethnicity into a binary indicator (non-Hispanic White or Other race/ethnicity). 25
Statistical analysis
All analyses were run in StataIC, version 15.
26
We used descriptive statistics to explore associations between the primary exposure, outcome, and covariates. We compared sociodemographic and clinical characteristics using descriptive statistics (proportions and summary statistics) and bivariate analyses, including two-sample
To assess the policy change as an effect modifier, we fit multivariable models with interaction terms between insurance and year, estimating stratified odds ratios. We did not perform difference-in-difference or interrupted time series analyses due to sample size limitations and lack of parallel trends (see Figure 2).
We descriptively reported reasons for non-fulfillment, postpartum visit attendance, contraception fulfillment within 1 year, and subsequent pregnancy. To account for Medicaid policy variation by state, we also conducted an exploratory analysis of sociodemographic and clinical characteristics limited to deliveries at the study hospital by patients with Medicaid, comparing patients living in West Virginia to other states. All tests were two-tailed, and an α of 0.05 was used to define statistical significance. The reporting of this study conforms to the STROBE guidelines (see Supplemental Material 1). 27
Results
Full sample results
During the study years, there were 4104 births. After excluding patients with missing contraceptive preference data (

Flowchart for analytic sample exclusions for West Virginia University Hospital patients who desired postpartum permanent contraception in 2019 and 2021.
Descriptive characteristics are presented in Table 1. Patients in our sample with Medicaid (
Demographic and clinical characteristics by insurance type for West Virginia University Hospital patients who desired postpartum permanent contraception in 2019 and 2021 (
Maternal race and ethnicity are presented as a single dichotomous indicator given low racial and ethnic diversity in the patient population studied.
Bolded p-values are statistically significant (α of 0.05).
Postpartum PC fulfillment, defined as fulfillment of desired postpartum PC prior to hospital discharge, was achieved by 61.5% of patients (
Demographic and clinical characteristics by fulfillment outcome in 2019 and 2021 for West Virginia University Hospital patients who desired postpartum permanent contraception (
Percents presented are column percents for each descriptive characteristic overall and stratified by year of delivery.
For continuous variables, unadjusted differences in means are presented based on two-sample
95% CI presented for the unadjusted difference in proportions across groups using the Huber-White estimator.
Bolded 95% CI values indicate statistical significance for the unadjusted difference in proportions across groups.
Maternal race and ethnicity are presented as a single dichotomous indicator given low racial and ethnic diversity in the patient population studied.

Monthly rates of postpartum permanent contraception before discharge among West Virginia University Hospital patients in 2019 and 2021 overall and by insurance type with standard errors (total
Overall, patients with Medicaid insurance had lower odds of fulfillment compared to patients with other insurance in univariable models (OR: 0.50; 95% CI [0.33, 0.76]; Table 3). Results were no longer statistically significant in multivariable models adjusting for age, parity, gestational age, prenatal care, marital status, BMI, and delivery mode (aOR: 0.70; [0.36, 1.34]; Table 3).
Logistic regression model results, odds ratios describing the association between insurance and fulfillment across 2019 and 2021 for West Virginia University Hospital patients who desired postpartum permanent contraception (
aOR: Odds ratio adjusted for maternal age, parity, gestational duration, adequacy of prenatal care, marital status, BMI, and delivery mode.
OR: Stratified odds ratio describing the interaction between policy change and insurance.
aOR: Stratified adjusted odds ratio describing the interaction between policy change and insurance, adjusted for maternal age, parity, gestational duration, adequacy of prenatal care, marital status, BMI, and delivery mode.
Pre-policy change, 2019 results
Before the policy change, among 219 patients in the sample, 62.6% obtained desired postpartum PC before discharge (Table 2). In 2019, 55.0% of patients with Medicaid underwent postpartum PC, compared to 73.3% of patients with other insurance (RD: −0.19; 95% CI [−0.32, −0.06]). During this year, there were also differences in fulfillment for patients by delivery mode, with patients delivering via cesarean more likely to have fulfillment than those who delivered vaginally (82.5% cesarean vs. 23.2% vaginal; RD: 0.59; [0.48, 0.70]). Additionally, patients who were married (70.6% among married patients, 54.5% among not married) or had higher BMIs (78.8% among BMI 40+, 55.6% among BMI < 40) were more likely to obtain desired PC before discharge.
Post-policy change, 2021 results
In 2021, among 204 patients in our sample, 60.3% obtained desired postpartum PC before hospital discharge (Table 2). By insurance type, 54.9% of patients with Medicaid and 68.3% of patients with other insurance had fulfillment before discharge (RD: −0.13; 95% CI [−0.27, 0.003]). Similar to 2019, in 2021, there were also large differences in fulfillment for patients with cesarean or vaginal delivery (Table 2; 88.6% cesarean vs. 14.8% vaginal; RD: 0.74; [0.64, 0.83]).
An exploratory analysis was done for Medicaid patients from WV compared to those from other states who delivered at WVU in 2021. Demographic and clinical characteristics are presented in Table S1 (Supplementary Material 2). Notably, only 35.8% of Medicaid patients living outside West Virginia had fulfillment by discharge in 2021, compared to 54.9% of West Virginia patients with Medicaid.
Comparison before and after policy change
In both years, being insured by Medicaid compared to other insurance was associated with reduced odds of postpartum PC fulfillment before discharge. In 2021, we observed a smaller absolute difference between fulfillment for patients with Medicaid and fulfillment for those with other insurance (13% difference in 2021 vs. 19% in 2019, Table 2). This was because fulfillment was lower among patients with other insurance in 2021 (68.3%) compared to 2019 (73.3%); there was no difference in fulfillment among patients with Medicaid between 2019 (55.0%) and 2021 (54.9%).
To assess whether the relationship between insurance and fulfillment was different in 2019 and 2021, we used stratified odds ratios. Though statistical testing did not indicate that the interaction term was significant (AME
Postpartum care and outcomes
Reasons for non-fulfillment among the 163 patients who did not obtain postpartum PC before discharge are presented in Table 4. ‘Decided on PC’ later was the most common reason for non-fulfillment (30.7%), followed by ‘patient changed mind’ (25.2%). ‘Provider barriers’ were more common among patients with other insurance than those with Medicaid (18.0% for other insurance, 9.7% for Medicaid). Desiring ‘inpatient PC only with delivery via cesarean section’ was more common in 2021 than in 2019, and more common for non-Medicaid patients.
Reasons for non-fulfillment of postpartum permanent contraception before discharge by insurance type for West Virginia University Hospital patients who desired postpartum permanent contraception in 2019 and 2021 (
Medical reasons for non-fulfillment were non-exclusive.
Among eligible patients who did not obtain postpartum PC by discharge (
Post-discharge outcomes among West Virginia University Hospital patients who desired postpartum permanent contraception and did not obtain by discharge by insurance group in 2019 and 2021 (
Discussion
In this single-site retrospective cohort study of patients desiring postpartum PC, removing the Medicaid 30-day waiting period in West Virginia may have partially addressed the insurance-based disparity in fulfillment of desired postpartum PC. However, there was no significant difference in the association between insurance type and postpartum PC fulfillment between 2019 and 2021 after adjusting for covariates in stratified modeling. This may reflect both limited sample size and increased non-policy barriers to inpatient postpartum PC, such as patient volume, operating room availability, staffing constraints, and burnout related to the COVID-19 pandemic.
Our findings underscore the influence of multi-level systemic barriers that likely contributed to the overall decline in postpartum PC fulfillment rates observed between 2019 and 2021. In 2021, we noted a marked decrease in fulfillment among those with other insurance, suggesting increased systems-level challenges. In 2021, after the policy change, fulfillment rates were even lower for non-WV patients with Medicaid, for whom the federal 30-day waiting period still applied, when compared to WV patients with Medicaid (13% difference between Medicaid and other insurance in 2021, vs. 19% in 2019). Delivery volume at the hospital rose by 15% during this period, without corresponding increases in staff or resources. This increased patient volume likely exacerbated systemic barriers to fulfillment, particularly after vaginal delivery—including limited operating room access, nursing coverage, and Anesthesia or Obstetric surgeon availability. 28 These barriers likely explain the notable decrease in postpartum PC fulfillment after vaginal delivery (27.6–16.9%) among patients living in WV, though sample size did not allow for further exploration of the role of delivery mode in this analysis. Furthermore, the COVID-19 pandemic led to disruptions and clinician burnout;22,29 the impact of this was not likely captured in the reasons for non-fulfillment presented, but may have had a subtle effect on patients “‘deciding on PC later,” “changing their minds,” or choosing alternate contraceptive plans after changes in counseling by strained staff. With this in mind, the stability of postpartum PC fulfillment among patients with Medicaid in this post-policy timeframe may indicate that removing the consent waiting period was a protective factor for access to desired PC among patients with Medicaid.
West Virginia provides a unique context for studying the elimination of the federal Medicaid waiting period, as it remains the only state with a policy to fund procedures without a 30-day waiting period. The study institution is a large academic referral center serving much of the state, making the sample representative of the general population of West Virginia. Postpartum PC fulfillment rates in these findings align with those from a contemporaneous multi-site cohort study including California, Illinois, and Alabama hospitals. 8 As in other settings, fulfillment was significantly higher among cesarean versus vaginal deliveries. 8 Postpartum visit attendance was low, suggesting missed opportunities to address structural and social determinants of health. Although some patients may have received postpartum care outside the West Virginia University health system, and low visit attendance at the study site may have biased postpartum outcomes data, the low rate of interval PC fulfillment within a year (17.7% overall, 14.2% for Medicaid patients) is striking, especially given that 30% expressed interest in this option.
Limitations
This research has several key limitations. Aspects of the current study, including the small sample size, single institution setting, and lack of racial and ethnic diversity, limit generalizability. The sample size for this study was determined by the patient population seeking care at the study site, and as such, no
Conclusions
Removal of the federal 30-day waiting period for PC may help equalize disparities in fulfillment between patients with Medicaid and other insurance. We observed a reduction in the absolute difference in postpartum PC fulfillment between these payor types associated with West Virginia’s 2020 policy change. Results remain preliminary, however, as they were no longer statistically significant in multivariate models, likely related to limited sample size. Moreover, overall postpartum PC fulfillment decreased over time, highlighting the continued need to address multi-level barriers to fulfillment. Future research is needed to confirm these findings on a large scale and to investigate the potential role of coercion for vulnerable groups.
Supplemental Material
sj-docx-1-whe-10.1177_17455057251385373 – Supplemental material for Medicaid policy change and the association between insurance and postpartum permanent contraception fulfillment in West Virginia
Supplemental material, sj-docx-1-whe-10.1177_17455057251385373 for Medicaid policy change and the association between insurance and postpartum permanent contraception fulfillment in West Virginia by Sarah Dotson, Elizabeth Pleasants, Brooke W. Bullington, Arzice Chua, Jonas J. Swartz, Suzanna Larkin and Kavita Shah Arora in Women's Health
Supplemental Material
sj-docx-2-whe-10.1177_17455057251385373 – Supplemental material for Medicaid policy change and the association between insurance and postpartum permanent contraception fulfillment in West Virginia
Supplemental material, sj-docx-2-whe-10.1177_17455057251385373 for Medicaid policy change and the association between insurance and postpartum permanent contraception fulfillment in West Virginia by Sarah Dotson, Elizabeth Pleasants, Brooke W. Bullington, Arzice Chua, Jonas J. Swartz, Suzanna Larkin and Kavita Shah Arora in Women's Health
Footnotes
Ethics considerations
Consent to participate
Consent for publication
Author contributions
Funding
Declaration of conflicting interests
Data availability statement
Supplemental material
References
Supplementary Material
Please find the following supplemental material available below.
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