Prenatal opioid use as a predictor of postpartum suicide attempts among reproductive-age women enrolled in Oregon Medicaid.

BACKGROUND: The rates of suicide and opioid use disorder (OUD) among pregnant and postpartum women continue to increase. This research characterized OUD and suicide attempts among Medicaid-enrolled perinatal women and examined prenatal OUD diagnosis as a marker for postpartum suicide attempts. METHODS: Data from Oregon birth certificates, Medicaid eligibility and claims files, and hospital discharge records were linked and analyzed. The sample included Oregon Medicaid women aged 15-44 who became pregnant and gave live births between January 2008 and January 2016 (N = 61,481). Key measures included indicators of suicide attempts (separately for any means and opioid poisoning) and OUD diagnosis, separately assessed during pregnancy and the one-year postpartum period. Probit regression was used to examine the overall relationship between prenatal OUD diagnosis and postpartum suicide attempts. A simultaneous equations model was employed to explore the link between prenatal OUD diagnosis and postpartum suicide attempts, mediated by postpartum OUD diagnosis. RESULTS: Thirty-three prenatal suicide attempts by any means were identified. Postpartum suicide attempts were more frequent with 58 attempts, corresponding to a rate of 94.3 attempts per 100,000. Of these attempts, 79% (46 attempts) involved opioid poisoning. A total of 1,799 unique women (4.6% of the sample) were diagnosed with OUD either during pregnancy or one-year postpartum with 53% receiving the diagnosis postpartum. Postpartum suicide attempts by opioid poisoning increased from 55.5 per 100,000 in 2009 to 105.1 per 100,000 in 2016. The rate of prenatal OUD also almost doubled over the same period. Prenatal OUD diagnosis was associated with a 0.15%-point increase in the probability of suicide attempts by opioid poisoning within the first year postpartum. This increase reflects a three-fold increase compared to the rate for women without a prenatal OUD diagnosis. A prenatal OUD diagnosis was significantly associated with an elevated risk of postpartum suicide attempts by opioid poisoning via a postpartum OUD diagnosis. CONCLUSIONS: The risk of suicide attempt by opioid poisoning is elevated for Medicaid-enrolled reproductive-age women during pregnancy and postpartum. Women diagnosed with prenatal OUD may face an increased risk of postpartum suicides attempts involving opioid poisoning.

Clinician approaches to new spine pain cases in primary care: Balance of opioid prescribing and early linkage to exercise therapy and spinal manipulation.

RATIONALE, AIMS AND OBJECTIVES: Spine pain (SP) is common and often disabling. Clinical practice guidelines discourage opioid treatment and outline the value of varied nonpharmacologic therapies (NPTs). This study elucidates the amount of variability in primary-care clinicians' (PCPs') prescribing of opioids and in their cases' receipt of the two most common NPTs (exercise therapy and spinal manipulation). METHOD: The design was a retrospective cohort study examining variation in the treatment of PCPs' new SP cases, classified by receipt of (a) prescription of an opioid at the initial visit; (b) exercise therapy and/or spinal manipulation within 30 days of initial visit. The study was set in the primary care clinics at military treatment facilities of the US Military Health System in the period between October 2011 and September 2016. RESULTS: The majority of cases did not receive a study treatment (66.3%); 19.6% of cases received only NPT within 30 days of initial visit; 11.5% were prescribed only an opioid at the initial visit with receipt of both NPT and opioid during early treatment rare (2.6%). Exercise therapy within 30 days exhibited more than a twofold difference in interquartile percentile rates (IQR) (median provision 15.8%, IQR 9.8%-22.1%). The other treatments exhibited even greater variation; specifically, spinal manipulation (median 8.5%, IQR 3.3%-15.8%), and opioid at initial visit (median 10.3%, IQR 4.4%-18.2%). The availability of physical therapists and doctors of chiropractic had significant association with several clinical provision rates. CONCLUSION: Among providers of spine care for a sample of Army soldiers, there was substantial variation in the early provision of exercise therapy, spinal manipulation, and opioid prescriptions. The magnitude of the case-mix adjusted variation and its association with facility availability of providers suggests that quality of care initiatives may help reduce this variation.

Perceived Health Status and Medical Conditions Among US Active-Duty Service Members.

Purpose: This paper investigates the association between self-reported perceived health status and doctor-informed medical conditions among US active duty service members (ADSM). Methods: Data are from the 2018 Health-Related Behaviors Survey - a cross-sectional survey weighted to represent the US military (N = 17166). Perceived good health status was defined as having a response choice of "good", "very good", or "excellent" to the question: Would you say your overall physical health is ___? Medical conditions were based on self-reported presence of nine clinical conditions. Analysis included weighted prevalence and log-binomial regression models to explore relationships between ADSM characteristics with perceived good health status as well as concordance between perceived status and medical conditions. Results: ADSM rated their health to be excellent (14.6%), very good (37.7%), good (36.2%), fair (9.7%) and poor (1.7%). About 88.5% perceived a good (to excellent) health status. Perceived good health status was negatively associated with the number of medical conditions present (adjusted odds ratio (aOR): ranging from 0.78 to 0.92) as well as several health behaviors (aOR): ranging from 0.86 to 0.98) and other sociodemographic factors. Among all ADSMs, 51% perceived good health in the absence of medical conditions, while 8% perceived poor health status in the presence of medical conditions. Concordance between perceived health status and medical conditions was significantly lower among ADSM who were older (aOR: 0.61; 95% CI: 0.54-0.69), with dependent children (aOR: 0.89; 95% CI: 0.84-0.95), or had been deployed (aOR: 0.89, 95% CI: 0.84-0.95). Conclusion: The prevalence of perceived good health status among ADSMs was consistent with those documented in the general US population. The interrelationships between ADSM's perceptions, medical conditions and sociodemographic characteristics may have implications for their health literacy and utilization of health services. Study findings suggest that interventions promoting healthy behaviors, health literacy and treatment-seeking may influence perceived health status and mitigate medical conditions among ADSM, thus improving the US Military readiness, resilience and mission success.

Postpartum Medicaid coverage and outpatient care utilization among low-income birthing individuals in Oregon: impact of Medicaid expansion.

Objective: This study examined the effect of Medicaid expansion in Oregon on duration of Medicaid enrollment and outpatient care utilization for low-income individuals during the postpartum period. Methods: We linked Oregon birth certificates, Medicaid enrollment files, and claims to identify postpartum individuals (N = 73,669) who gave birth between 2011 and 2015. We created one pre-Medicaid expansion (2011-2012) and two post-expansion (2014-2015) cohorts (i.e., previously covered and newly covered by Medicaid). We used ordinary least squares and negative binomial regression models to examine changes in postpartum coverage duration and number of outpatient visits within a year of delivery for the post-expansion cohorts compared to the pre-expansion cohort. We examined monthly and overall changes in outpatient utilization during 0-2 months, 3-6 months, and 7-12 months after delivery. Results: Postpartum coverage duration increased by 3.14 months and 2.78 months for the post-Medicaid expansion previously enrolled and newly enrolled cohorts (p < 0.001), respectively. Overall outpatient care utilization increased by 0.06, 0.19, and 0.34 visits per person for the previously covered cohort and 0.12, 0.13, and 0.26 visits per person for newly covered cohort during 0-2 months, 3-6 months, and 7-12 months, respectively. Monthly change in utilization increased by 0.006 (0-2 months) and 0.004 (3-6 months) visits per person for post-Medicaid previously enrolled cohort and decreased by 0.003 (0-2 months) and 0.02 (7-12 months) visits per person among newly enrolled cohort. Conclusion: Medicaid expansion increased insurance coverage duration and outpatient care utilization during postpartum period in Oregon, potentially contributing to reductions in pregnancy-related mortality and morbidities among birthing individuals.

Use of Sexual and Reproductive Health Services Among Women Living in Rural and Urban Oregon: Impact of the Affordable Care Act Medicaid Expansion.

Objectives: We compared the use of sexual and reproductive health (SRH) services for Medicaid-enrolled women of reproductive age (WRA) living in Oregon by urban/rural status and examined the effect of the Affordable Care Act (ACA) Medicaid expansion on the use of SRH services for these women. Methods: We linked Oregon Medicaid enrollment files and claims for the years 2008-2016 to identify 392,111 WRA. Outcome measures included receipt of five key SRH services. The main independent variables were urban/rural status (urban, large rural cities, and small rural towns) and an indicator for the post-Medicaid expansion time period (2014-2016). We performed (conditional) fixed-effects logistic regression and multiple-group interrupted time-series analyses. Results: Women living in small rural towns were less likely than women living in urban areas to receive well-woman visits (odds ratio [OR] = 0.87; 95% confidence interval [95% CI] [0.80-0.94]), sexually transmitted infection (STI) screening (OR = 0.81; 95% CI [0.72-0.90]), and pap tests (OR = 0.91; 95% CI [0.84-0.99]). Women living in large rural cities were less likely than women living in urban areas to receive STI screening (OR = 0.91; 95% CI [0.84-0.98]). Following the implementation of ACA Medicaid expansion, the average number of all five SRH services increased for all women. With the exception of contraceptive services, the average number of SRH services examined increased more for urban women than for women living in small rural towns. Conclusions: Although Medicaid expansion contributed to increased use of SRH services for all WRA, the policy was unsuccessful in reducing disparities in access to SRH services for WRA living in rural areas compared with urban areas.

The impact of Medicaid expansion on asthma-related health care services utilization and expenditure.

OBJECTIVE: The purpose of this study was to examine the effect of Medicaid expansion on asthma-related health care services utilization and expenditures among low-income adult patients with asthma aged 26-64. METHODS: Using a pooled dataset from 2007 to 2018 Medical Expenditures Panel Surveys (MEPS), we implemented a multivariate difference-in-differences analysis, which compared changes in utilization and expenditures for asthma-related health care services among adult patients with asthma with income below 133% Federal Poverty Level (FPL) vs. above 133%-400% FPL, before and after Medicaid expansion in 2014. We used negative binomial models to analyze utilization outcomes. Expenditures were estimated using two-part models with logit as the first part and generalized linear models as the second part. Estimates were weighted for the complex multi-stage sampling design of MEPS. RESULTS: Medicaid expansion was associated with increases in both utilization and expenditures for asthma-related prescription drugs among low-income patients with asthma, by 1.8 prescription fills (p < 0.05) and $233 (p < 0.05) per year, respectively. No statistically significant association was detected for other asthma-related health care services. CONCLUSION: Medicaid expansion led to an increase in accessibility of prescription drugs among low-income asthma patients, but had no effect on other asthma-related health care services.

Before and During Pandemic Telemedicine Use: An Analysis of Rural and Urban Safety-Net Clinics.

INTRODUCTION: Differences in face-to-face and telemedicine visits before and during the COVID-19 pandemic among rural and urban safety-net clinic patients were evaluated. In addition, this study investigated whether rural patients were as likely to utilize telemedicine for primary care during the pandemic as urban patients. METHODS: Using electronic health record data from safety-net clinics, patients aged ≥18 years with ≥1 visit before or during the COVID-19 pandemic, March 1, 2019-March 31, 2021, were identified, and trends in face-to-face and telemedicine (phone and video) visits for patients by rurality using Rural‒Urban Commuting Area codes were characterized. Multilevel mixed-effects regression models compared service delivery method during the pandemic by rurality. RESULTS: Included patients (N=1,015,722) were seen in 446 safety-net clinics: 83% urban, 10.3% large rural, 4.1% small rural, and 2.6% isolated rural. Before COVID-19, little difference in the percentage of encounters conducted face-to-face versus through telemedicine by rurality was found. Telemedicine visits significantly increased during the pandemic by 27.2 percentage points among patients in isolated rural areas to 52.3 percentage points among patients in urban areas. Rural patients overall had significantly lower odds of using telemedicine for a visit during the pandemic than urban patients. CONCLUSIONS: Despite the increased use of telemedicine in response to the pandemic, rural patients had significantly fewer telemedicine visits than those in more urban areas. Equitable access to telemedicine will depend on continued reimbursement for telemedicine services, but additional efforts are warranted to improve access to and use of health care among rural patients.

Domestic Violence and Sterilization Skew in India: An Instrumental Variable Analysis.

The objective of this study was to assess the prevalence of domestic violence in ever-married women in India and analyze the relationship between domestic violence and use of female sterilization as contraception. We analyzed data from the National Family Health Survey 2005-2006 (NFHS3). The Domestic Violence Module of the survey included abuse experiences and reproductive health outcomes of ever-married women aged 15 to 49 years (n = 69,704). The main outcome of interest was female sterilization and domestic violence experience was the main independent variable. Covariates in our multivariate regression models were guided by the socioecological model for domestic abuse. We estimated a reference linear probability model for the dichotomous outcome. We also employed an instrumental variables procedure to strengthen causal inference under such potential sources of bias as measurement error in reporting domestic violence and omitted variables. The reference model showed an increase of 2.1 percentage points (p < .001) in the probability of female sterilization associated with exposure to domestic violence. After correcting the estimate for the measurement error and omitted variable bias, we found that domestic violence was associated with an increase in female sterilization by 6.4 percentage points (p < .001), which is 18% higher than the rate of sterilization among non-victims. In conclusion, our findings imply that domestic violence may lead abuse victims to opt for female sterilization as contraception. Domestic violence is a significant obstacle to efficient contraceptive use. Programs directed toward violence prevention should work conjointly with family planning programs in India.

Improved depression screening and treatment among low-income pregnant and postpartum women following Medicaid expansion in the U.S.

Objective: This study examined the effect of Medicaid expansion in Oregon under the Affordable Care Act on depression screening and treatment among pregnant and postpartum women who gave Medicaid-financed births. Methods: Oregon birth certificates were linked to Medicaid enrollment and claims records for 2011-2016. The sample included a policy group of 1,368 women (n = 2,831) who gave births covered by pregnancy-only Medicaid in the pre-expansion period (before 2014) and full-scope Medicaid in the post-expansion period, and the comparison group of 2,229 women (n = 4,580) who gave births covered by full-scope Medicaid in both pre- and post-expansion periods. Outcomes included indicators for depression screening, psychotherapy, pharmacotherapy, and combined psychotherapy-pharmacotherapy, separately for the first, second, and third trimesters, and 2 and 6 months postpartum. This study utilized a difference-in-differences approach that compared pre-post change in an outcome for the policy group to a counterfactual pre-post change from the comparison group. Results: Medicaid expansion led to a 3.64%-point increase in the rate of depression screening 6 months postpartum, 3.28%-point increase in the rate of psychotherapy 6 months postpartum, and 2.3 and 1%-point increases in the rates of pharmacotherapy and combined treatment in the first trimester, respectively. The relationships were driven by disproportionate gains among non-Hispanic whites and urban residents. Conclusions: Expanding Medicaid eligibility may improve depression screening and treatment among low-income women early in pregnancy and/or beyond the usual two-month postpartum period. However, it does not necessarily reduce racial/ethnic and regional gaps in depression screening and treatment.

Medicaid expansion in Oregon and postpartum healthcare among people with and without prenatal substance use disorder.

Background: People with a maternal substance use disorder (SUD) may experience a lack of access to necessary healthcare and more specifically, postpartum healthcare. It is not known whether increased insurance coverage introduced by Medicaid expansion has improved postpartum healthcare utilization among this population. Methods: Oregon 2008-2016 birth certificates and Medicaid claims were used to examine whether continuous insurance enrollment and postpartum healthcare utilization increased post-Medicaid expansion in a population with and without SUD (n = 9,337). International Classification of Diseases codes were used to identify deliveries, SUD, and postpartum healthcare. Univariable and multivariable generalized linear regression with standard errors clustered by individual were used to estimate the association between Medicaid expansion and postpartum healthcare utilization, stratified by maternal SUD. Results: Among the 10.3% with SUD, expansion was not associated with increased continuous enrollment or postpartum healthcare utilization. Among those without SUD, post-expansion deliveries were associated with increased continuous enrollment (+105.0 days; 95% CI=96.9-113.2), total (+4.4; 95% CI=2.9-6.0), postpartum (+0.3; 95% CI=0.2-0.4), inpatient (+0.9; 95% CI=0.7-1.1), outpatient (+2.3; 95% CI=1.4-3.3), office (+0.9; 95% CI=0.2-1.6), and emergency department (+0.3; 95% CI=0.1-0.5) visits. Among deliveries to postpartum people with SUD, 27.2% had opioid use disorder (OUD); expansion was associated with increased OUD medication use (12.0% vs 18.3%) and number of fills (6.7 vs 16.6). Conclusions: Medicaid expansion in Oregon was only associated with increased Medicaid-financed healthcare utilization for postpartum people without SUD, with the exception of those with OUD, demonstrating the need for assessing various strategies to improve postpartum healthcare utilization.

The Impact of Continuity of Care on Cervical Cancer Screening: How Visit Pattern Affects Guideline Concordance.

Cervical cancer can be prevented and highly curable if detected early. Current guidelines recommend women to receive cervical cancer screening starting at age 21. Our study aims to investigate how improving continuity of care (COC) may influence guideline concordance of cervical cancer screening. Using the eligibility and claims data, we created a person-month panel data set for women who were enrolled in Oregon Medicaid for at least 80% of the period from 2008 to 2015. We then selected our study cohort following the cervical cancer screening guidelines. Our dependent variable is whether a woman received cervical cancer screening concordant with guidelines in a given month, when she did not receive Pap test in the past 36 months and did not receive co-testing of HPV test plus Pap test in the past 60 months. We used both population-averaged logit model and conditional fixed-effect logit model to estimate the association between the guideline concordance and the COC index, after controlling for high risk, pregnancy, age, race, and ethnicity. A total of 466,526 person-month observations were included in our main models. A 0.1 unit increase of the COC score was significantly associated with a decrease in the odds of receiving guideline-concordant cervical cancer screening (population-averaged logit model: OR = 0.988, p < .001; conditional fixed-effect logit model: OR = 0.966, p < .001). Our findings remain robust to a series of sensitivity analyses. A better COC may not be necessarily beneficial to improving cervical cancer prevention. Educations for both physicians and patients should be supplemented to assure quality of preventive care.

A Reduction in Health Care Expenditures Linked to Mental Health Service Use Among Adults With Chronic Physical Conditions.

OBJECTIVE: The aim was to examine the impact of receipt of mental health services on health care expenditures for U.S. adults with major chronic physical conditions. METHODS: Medical Expenditure Panel Survey data for 2004-2014 were analyzed for adults ages ≥18 with at least one of six chronic physical conditions (cardiovascular diseases, cancer, diabetes, emphysema, asthma, and arthritis) who were followed up for 2 years (N=33,419). Outcomes included overall health care spending and expenditure by service type (inpatient services, outpatient services, emergency department visits, office-based physician visits, and prescribed medication). A difference-in-differences model compared a change in health care costs in the subsequent year for those who did and did not receive mental health services in the preceding year. RESULTS: On average, the increase in overall health care expenditure in the subsequent year among adults receiving mental health services in the preceding year was smaller by 12.6 percentage points (p<0.05) than for those who did not receive such services. The difference was equivalent to $1,146 in 2014 constant U.S. dollars (p=0.05). Medication treatment alone did not have a meaningful effect on overall costs. The combination of psychotherapy and medication was associated with a per-capita reduction in overall health care expenditure of 21.7 percentage points, or $2,690 (p<0.01). The combination was also associated with reduced costs for office-based visits (p<0.05) and medication (p<0.05). CONCLUSIONS: Receipt of mental health services was associated with a reduction in overall health care costs, particularly for office-based visits and prescribed medication, among adults with chronic physical conditions.

Postpartum Care Utilization Among Women with Medicaid-Funded Live Births in Oregon.

INTRODUCTION: Postpartum care is an important strategy for preventing and managing chronic disease in women with pregnancy complications (i.e., gestational diabetes (GDM) and hypertensive disorders of pregnancy (HDP)). METHODS: Using a population-based, cohort study among Oregon women with Medicaid-financed deliveries (2009-2012), we examined Medicaid-financed postpartum care (postpartum visits, contraceptive services, and routine preventive health services) among women who retained Medicaid coverage for at least 90 days after delivery (n = 74,933). We estimated postpartum care overall and among women with and without GDM and/or HDP using two different definitions: 1) excluding care provided on the day of delivery, and 2) including care on the day of delivery. Pearson chi-square tests were used to assess differential distributions in postpartum care by pregnancy complications (p < .05), and generalized estimating equations were used to calculate adjusted odds ratios (aORs) with 95% confidence intervals (CIs). RESULTS: Of Oregon women who retained coverage through 90 days after delivery, 56.6-78.1% (based on the two definitions) received any postpartum care, including postpartum visits (26.5%-71.8%), contraceptive services (30.7-35.6%), or other routine preventive health services (38.5-39.1%). Excluding day of delivery services, the odds of receiving any postpartum care (aOR 1.26, 95% CI 1.08-1.47) or routine preventive services (aOR 1.32, 95% CI 1.14-1.53) were meaningfully higher among women with GDM and HDP (reference = neither). DISCUSSION: Medicaid-financed postpartum care in Oregon was underutilized, it varied by pregnancy complications, and needs improvement. Postpartum care is important for all women and especially those with GDM or HDP, who may require chronic disease risk assessment, management, and referrals.

Maternal opioid exposure, neonatal abstinence syndrome, and infant healthcare utilization: A retrospective cohort analysis.

BACKGROUND: We sought to describe healthcare utilization of infants by maternal opioid exposure and neonatal abstinence syndrome (NAS) status. METHODS: A longitudinal cohort of 81,833 maternal-infant dyads were identified from Oregon's 2008-2012 linked birth certificate and Medicaid eligibility and claims data. Chi-square tests compared term infants (≥37 weeks of gestational age) by maternal opioid exposure, defined using International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) diagnosis codes or prescription fills, and NAS, defined using ICD-9-CM codes, such that infants were categorized as Opioid+/ NAS+, Opioid+/NAS-, Opioid-/NAS+, and Opioid-/NAS-. Modified Poisson regression was used to calculate adjusted risk ratios (aRR) and 95 % confidence intervals (CI) for healthcare utilization for each infant group compared to Opioid-/NAS- infants. RESULTS: The prevalence of documented maternal opioid exposure was 123.1 per 1000 dyads and NAS incidence was 5.8 per 1000 dyads. Compared to Opioid-/NAS- infants, infants with maternal opioid exposures were more likely to be hospitalized within 4 weeks (Opioid+/ NAS+: [aRR: 4.7; 95 % CI: 4.3-5.1]; Opioid+/ NAS-: [aRR: 3.7; 95 %CI: 3.1-4.5]) and a year after birth (Opioid+/ NAS+: [aRR: 3.7; 95 %CI: 3.4-4.0]; Opioid+/ NAS-: [aRR: 2.8; 95 %CI: 2.3-3.4]). Infants with maternal opioid exposure and/or NAS were more likely than Opioid-/NAS- infants to have ≥2 sick visits and any ED visits in the year after birth. CONCLUSIONS: Infants with NAS and/or maternal opioid exposure had greater healthcare utilization than infants without NAS or opioid exposure. Efforts to mitigate future hospitalization risk and encourage participation in preventative services within the first year of life may improve outcomes.

Medicaid expansion and neonatal outcomes in Oregon.

RATIONALE, AIMS AND OBJECTIVES: Low-income women disproportionately experience preventable, adverse neonatal outcomes. Prior to the Affordable Care Act (ACA) Medicaid expansion, many low-income women became eligible for coverage only after becoming pregnant, reducing their access to healthcare before pregnancy and creating discontinuities in care that may delay Medicaid enrollment. The objective of this study was to examine the impact of the ACA Medicaid expansion on neonatal outcomes among low-income populations in Oregon. METHOD: We used linked Oregon birth certificate and Medicaid data from 2008-2016 to identify control and policy groups of women who gave birth both before and after implementation of the ACA Medicaid expansion (n = 21 204 births to N = 10 602 women). We conducted a difference-in-differences analysis of the effect of Medicaid expansion on preterm birth, low birthweight (LBW), neonatal intensive care unit (NICU) admissions, and neonatal mortality. RESULTS: We found policy effects on reducing LBW (interaction aOR = 0.71, 95% CI: 0.57-0.90) and preterm birth (interaction aOR 0.77, 95% CI: 0.62 = 0.96) but not on NICU admissions or neonatal mortality. CONCLUSIONS: This study provides evidence that expanding Medicaid coverage may have positive effects on LBW and preterm birth, which could lead to important long-term impacts on childhood and later-life health outcomes. States that have not expanded their Medicaid programs might improve neonatal outcomes among low-income populations by extending insurance coverage to low-income adults.

Factors Associated With the Differences Between Self-Report Smoking and Urinary Cotinine Criteria.

During self-reporting, respondents underreport their smoking status for various reasons. We aimed to evaluate the difference between smoking status self-reporting and urinary cotinine tests in Korea respondents. Logistic regression analyses were performed to identify factors associated with the differences between self-reporting and urinary cotinine criteria. The dependent variable was the underreporting of smoking status; independent variables were sociodemographic, health status, and secondhand smoke (SHS) exposure. Total underreporting was 3.6% when Cot ≥164 and 4.0% when Cot-variable (classified) criteria underreported. Positive associations were found between smoking and age, education, drinking, and SHS. Underreporting in the nonsmoker group (odds ratio [OR] = 2.336; confidence interval [CI] = 1.717-3.179) was significantly associated with SHS, but this difference was nonsignificant in the ex-smoker group (OR = 1.184; CI = 0.879-1.638). Underreporting was 3.6% to 4.0%, and C-statistics was about 0.7, indicating that outcomes could be classified. SHS in nonsmokers was positively associated with underreporting; however, only the nonsmoker group had positive associations, demonstrating unintentional underreporting due to SHS.

Impact of Medicaid expansion in Oregon on access to prenatal care.

Medicaid expansion under the Patient Protection and Affordable Care Act (ACA) has the potential to improve reproductive health by allowing low-income women access to healthcare before and early in pregnancy. The aim of this study was to examine the effects of Oregon's Medicaid expansion on timely and adequate prenatal care. We included live births in Oregon from 2012 to 2015 and used individually-linked birth certificate and Medicaid eligibility data. Outcomes were receipt of first trimester prenatal care and receipt of adequate prenatal care. We also assessed Medicaid enrollment one month prior to pregnancy. We estimated the overall effect of Medicaid expansion on prenatal care utilization using probit regression models. Additionally, we assessed the impact of Medicaid expansion on prenatal care utilization via pre-pregnancy Medicaid enrollment using bivariate probit models. Overall, receipt of first trimester prenatal care increased post-expansion by 1.5 percentage points (p < 0.01) after expansion. Receipt of adequate prenatal care also increased significantly post-expansion with an incremental increase of 2.8 percentage points (p < 0.001). Pre-pregnancy Medicaid enrollment increased following Medicaid expansion (ß = 0.55, p < 0.001) and was associated with both timely (ß = 0.48, p < 0.001) and adequate receipt of prenatal care (ß = 0.14, p < 0.001). Using two years of post-ACA data we found that Medicaid expansion had significant positive associations with Medicaid enrollment prior to pregnancy, which subsequently increased receipt of timely and adequate prenatal care. Our study provides evidence that expanding Medicaid has positive effects on women's use of healthcare.

Contraceptive Services After Medicaid Expansion in a State with a Medicaid Family Planning Waiver Program.

Background: Medicaid family planning programs provide coverage for contraceptive services to low-income women who otherwise do not meet eligibility criteria for Medicaid. In some states that expanded Medicaid eligibility following the Affordable Care Act (ACA), women who were previously eligible only for family planning services became eligible for full-scope Medicaid. The objective of this study was to provide context for the impact of the ACA Medicaid expansion on contraceptive service provision to women in Oregon who were newly enrolled in Medicaid following the expansion. Materials and Methods: We used Medicaid eligibility data to identify women ages 15-44 years who were newly enrolled in Oregon's Medicaid program following the ACA expansion (n = 305,042). Using Medicaid claims data, we described contraceptive services and other preventive reproductive care received in 2014-2017. Results: Overall, 20% of women newly enrolled in Medicaid received contraceptive counseling and 31% received at least one method. The most frequently received methods were the pill (38% of women who received any method), intrauterine device (28%), implant (15%), and injectable (12%). Community health centers played a significant role in contraceptive service provision, particularly for the implant and injectable. Nine of 10 women (89%) who received contraceptive services also received other preventive reproductive services. Conclusions: This study provides insight regarding receipt of contraceptive services and preventive reproductive care following Medicaid expansion in a state with a Medicaid family planning program. These findings underscore the importance of Medicaid expansion for reproductive health even in states with preexisting Medicaid family planning.

Putting Providers At-Risk through Capitation or Shared Savings: How Strong are Incentives for Upcoding and Treatment Changes?

BACKGROUND: Alternative payment models, including Accountable Care Organizations and fully capitated models, change incentives for treatment over fee-for-service models and are widely used in a variety of settings. The level of payment may affect the assignment to a payment category, but to date the upcoding literature has been motivated largely incorporating financial penalties for upcoding rather than by a theoretical model that incorporates the downstream effects of upcoding on service provision requirements. AIMS OF THE STUDY: In this paper, we contribute to the literature on upcoding by developing a new theoretical model that is applicable to capitated, case-rate and shared savings payment systems. This model incorporates the downstream effects of upcoding on service provision requirements rather than just the avoidance of penalties. This difference is important especially for shared-savings models with quality benchmarks. METHODS: We test implications of our theoretical model on changes in severity determination and service use associated with changes in case-rate payments in a publicly-funded mental health care system. We model provider-assigned severity categories as a function of risk-adjusted capitated payments using conditional logit regressions and counts of service days per month using negative binomial models. RESULTS: We find that severity determination is only weakly associated with the payment rate, with relatively small upcoding effects, but that level of use shows a greater degree of association. DISCUSSION: These results are consistent with our theoretical predictions where the marginal utility of savings or profit is small, as would be expected from public sector agencies. Upcoding did seem to occur, but at very small levels and may have been mitigated after the county and providers had some experience with the new system. The association between the payment levels and the number of service days in a month, however, was significant in the first period, and potentially at a clinically important level. Limitations include data from a single county/multiple provider system and potential unmeasured confounding during the post-implementation period. IMPLICATIONS FOR HEALTH CARE PROVISION AND USE: Providers in our data were not at risk for inpatient services but decreases in use of outpatient services associated with rate decreases may lead to further increases in inpatient use and therefore expenditures over time. IMPLICATIONS FOR HEALTH POLICIES: Health program directors and policy makers need to be acutely aware of the interplay between provider payments and patient care and eventual health and mental health outcomes. IMPLICATIONS FOR FURTHER RESEARCH: Further research could examine the implications of the theoretical model of upcoding in other payment systems, estimate the power of the tiered-risk systems, and examine their influence on clinical outcomes.

Determinants of Boarding of Patients with Severe Mental Illness in Hospital Emergency Departments.

BACKGROUND: Boarding of patients in hospital emergency departments (EDs) occurs routinely across the U.S. ED patients with behavioral health conditions are more likely to be boarded than other patients. However, the existing literature on ED boarding of psychiatric patients remains largely descriptive and has not empirically related mental health system capacity to psychiatric boarding. Nor does it show how the mental health system could better address the needs of populations at the highest risk of ED boarding. AIMS OF THE STUDY: We examined extent and determinants of "boarding" of patients with severe mental illness (SMI) in hospital emergency departments (ED) and tested whether greater mental health system capacity may mitigate the degree of ED boarding. METHODS: We linked Oregon's ED Information Exchange, hospital discharge, and Medicaid data to analyze encounters in Oregon hospital EDs from October 2014 through September 2015 by 7,103 persons aged 15 to 64 with SMI (N = 34,207). We additionally utilized Medicaid claims for years 2010-2015 to identify Medicaid beneficiaries with SMI. Boarding was defined as an ED stay over six hours. We estimated a recursive simultaneous-equation model to test the pathway that mental health system capacity affects ED boarding via psychiatric visits. RESULTS: Psychiatric visits were more likely to be boarded than non-psychiatric visits (30.2% vs. 7.4%). Severe psychiatric visits were 1.4 times more likely to be boarded than non-severe psychiatric visits. Thirty-four percent of psychiatric visits by children were boarded compared to 29.6% for adults. Statistical analysis found that psychiatric visit, substance abuse, younger age, black race and urban residence corresponded with an elevated risk of boarding. Discharge destinations such as psychiatric facility and acute care hospitals also corresponded with a higher probability of ED boarding. Greater supply of mental health resources in a county, both inpatient and intensive community-based, corresponded with a reduced risk of ED boarding via fewer psychiatric ED visits. DISCUSSION: Psychiatric visit, severity of psychiatric diagnosis, substance abuse, and discharge destinations are among important predictors of psychiatric ED boarding by persons with SMI. A greater capacity of inpatient and intensive community mental health systems may lead to a reduction in psychiatric ED visits by persons with SMI and thereby decrease the extent of psychiatric ED boarding. IMPLICATIONS FOR HEALTH POLICIES: Continued investment in mental health system resources may reduce psychiatric ED visits and mitigate the psychiatric ED boarding problem.